docs/appengine/kb/index.html

   1
   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30 <html>
  31   <head>
  32     <script type="text/javascript" language="JavaScript">
  33     ORIGINAL_PAGE_PATH = "/appengine/kb/index.html";
  34     </script>
  35
  36
  37 <meta http-equiv="content-type" content="text/html; charset=utf-8">
  38 <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
  39 <title>Google App Engine FAQs - Google App Engine - Google Code</title>
  40 <script type="text/javascript"><!--
  41 (function(){function a(){this.t={};this.tick=function(c){this.t[c]=(new Date).getTime()};this.tick("start")}var b=new a;window.jstiming={Timer:a,load:b};if(window.external&&window.external.pageT)window.jstiming.pt=window.external.pageT;})();
  42
  43 var _tocPath_ = '/appengine/docs/_toc.ezt';
  44 var codesite_token = null;
  45 var logged_in_user_email = null;
  46 //--></script>
  47 <link href="../../css/codesite.pack.04102009.css" type="text/css" rel="stylesheet">
  48 <script src="../../js/codesite_head.pack.04102009.js" type="text/javascript"></script>
  49 <script type="text/javascript">CODESITE_CSITimer['load'].tick('bhs');</script>
  50 <link rel="search" type="application/opensearchdescription+xml" title="Google Code" href="http://code.google.com/osd.xml">
  51
  52 <!--[if IE]><link rel="stylesheet" type="text/css" href="../../css/iehacks.css"><![endif]-->
  53
  54     <link href="../../css/semantic_headers.css" rel="stylesheet" type="text/css" />
  55     <link href="../css/local_extensions.css" rel="stylesheet" type="text/css" />
  56     <script src="../js/customtabs.js" type="text/javascript"></script>
  57     <script src="../js/ui.tabs.js" type="text/javascript"></script>
  58   </head>
  59
  60   <body class="gc-documentation">
  61
  62
  63
  64     <script type="text/javascript">
  65 var _gaq = _gaq || [];
  66
  67 var cookiePath = '/appengine/';
  68 if (cookiePath.lastIndexOf('.html') > cookiePath.lastIndexOf('/')) {
  69   cookiePath = cookiePath.substring(0, cookiePath.lastIndexOf('/') + 1);
  70 };
  71
  72 _gaq.push(
  73
  74
  75     ['siteTracker._setAccount', 'UA-18071-1'],
  76     ['siteTracker._setDomainName', 'code.google.com'],
  77     ['siteTracker._trackPageview']
  78 );
  79 (function() {
  80   var ga = document.createElement('script');
  81   ga.type = 'text/javascript';
  82   ga.async = true;
  83   ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
  84   (document.getElementsByTagName('head')[0] ||
  85    document.getElementsByTagName('body')[0]).appendChild(ga);
  86  })();
  87 </script>
  88
  89
  90 <div id="gb">
  91  <span>
  92
  93     <a id="lang-dropdown" href="http://code.google.com" onclick="return false;"><span style="text-decoration:underline">English</span> <span style="font-size:.75em;">&#9660;</span></a>
  94
  95  </span>
  96 </div>
  97
  98 <div class="gbh" style="left:0px;"></div>
  99 <div class="gbh" style="right:0px;"></div>
 100
 101
 102 <div id="gc-container">
 103 <a id="top"></a>
 104 <div id="skipto">
 105   <a href="#gc-pagecontent-anchor">Skip to page content</a>
 106   <a href="#gc-toc-anchor">Skip to main navigation</a>
 107 </div>
 108
 109 <div id="gc-header">
 110   <div id="logo"><a href="http://code.google.com">
 111
 112      <img src="../../images/code_logo.gif" height="40" width="167" alt="Google Code" style="border:0;margin:3px 0 0 0;">
 113
 114   </a></div>
 115   <div id="search">
 116     <div id="searchForm">
 117       <form id="cse" action="http://www.google.com/cse" accept-charset="utf-8" onsubmit="executeGSearch(document.getElementById('gsearchInput').value); return false;">
 118       <noscript>
 119       <input type="hidden" name="cref" value="http://code.google.com/cse/googlecode-context.xml">
 120       </noscript>
 121       <div id="gsc-search-box">
 122         <input id="gsearchInput" type="text" name="q" maxlength="2048" class="gsc-input" autocomplete="off" title="Google Code Search" style="width:345px">
 123         <div id="cs-searchresults" onclick="event.cancelBubble = true;"></div>
 124         <input title="Search" id="gsearchButton" class="gsc-search-button" name="sa" value="Search" type="submit">
 125         <div class="greytext">e.g. "templates" or "datastore"</div>
 126       </div>
 127       </form>
 128     </div> <!-- end searchForm -->
 129   </div> <!-- end search -->
 130
 131
 132
 133
 134 </div> <!-- end gc-header -->
 135
 136
 137 <div id="codesiteContent">
 138
 139 <a id="gc-topnav-anchor"></a>
 140 <div id="gc-topnav">
 141   <h1 style="padding:0 0 0 6px;">Google App Engine</h1>
 142   <ul id="faq" class="gc-topnav-tabs">
 143
 144     <li id="home_link">
 145       <a href="../index.html" title="Google App Engine home page">Home</a>
 146     </li>
 147
 148     <li id="docs_link">
 149       <a href="../docs/index.html" title="Official Google App Engine documentation">Docs</a>
 150     </li>
 151
 152     <li id="faq_link">
 153       <a href="index.html" class="selected" title="Answers to frequently asked questions about Google App Engine">FAQ</a>
 154     </li>
 155
 156     <li id="articles_link">
 157       <a href="../articles/index.html" title="Focused articles and tutorials for Google App Engine developers">Articles</a>
 158     </li>
 159
 160     <li>
 161       <a href="http://googleappengine.blogspot.com/" title="Official Google App Engine blog">Blog</a>
 162     </li>
 163
 164     <li>
 165       <a href="../community.html" title="Community home for Google App Engine">Community</a>
 166     </li>
 167
 168     <li>
 169       <a href="../terms.html" title="Google App Engine terms of service">Terms</a>
 170     </li>
 171
 172     <li>
 173       <a href="../downloads.html" title="Download Google App Engine">Download</a>
 174     </li>
 175
 176
 177
 178
 179
 180
 181   <li><g:plusone size="small" count="false" source="google:googlecode"></g:plusone>&nbsp;</li>
 182 </ul>
 183 </div> <!-- end gc-topnav -->
 184
 185
 186     <div class="g-section g-tpl-170">
 187
 188       <a name="gc-toc-anchor"></a>
 189       <div class="g-unit g-first" id="gc-toc">
 190         <ul>
 191   <li><a href="../downloads.html">Downloads</a></li>
 192   <li><a href="../tools_tips.html">Tools and Tips</a></li>
 193   <li><a href="../docs/glossary.html">Glossary</a><sup class="new">New!</sup></li>
 194   <li><a href="https://appengine.google.com/">Admin Console</a></li>
 195   <li><a href="http://code.google.com/status/appengine">System Status</a></li>
 196   <li><a href="http://code.google.com/p/googleappengine/issues/list">Issue Tracker</a></li>
 197 </ul>
 198 <div class="line"></div>
 199 <ul>
 200   <li><h2>Getting Started</h2>
 201     <ul>
 202       <li><a href="../docs/whatisgoogleappengine.html">What Is Google App Engine?</a></li>
 203       <li><a href="../docs/java/gettingstarted/index.html">Java</a>
 204         <ul>
 205               <li><a href="../docs/java/gettingstarted/introduction.html">Introduction</a></li>
 206     <li><a href="../docs/java/gettingstarted/installing.html">Installing the Java SDK</a></li>
 207     <li><a href="../docs/java/gettingstarted/creating.html">Creating a Project</a></li>
 208     <li><a href="../docs/java/gettingstarted/usingusers.html">Using the Users Service</a></li>
 209     <li><a href="../docs/java/gettingstarted/usingjsps.html">Using JSPs</a></li>
 210     <li><a href="../docs/java/gettingstarted/usingdatastore.html">Using the Datastore</a></li>
 211     <li><a href="../docs/java/gettingstarted/staticfiles.html">Using Static Files</a></li>
 212     <li><a href="../docs/java/gettingstarted/uploading.html">Uploading Your Application</a></li>
 213     <li><a href="http://googcloudlabs.appspot.com">Codelabs for Getting Started in Java</a></li>
 214
 215         </ul>
 216       </li>
 217       <li><a href="../docs/python/gettingstarted/index.html">Python 2.5</a>
 218         <ul>
 219             <li><a href="../docs/python/gettingstarted/introduction.html">Introduction</a></li>
 220   <li><a href="../docs/python/gettingstarted/devenvironment.html">The Development Environment</a></li>
 221   <li><a href="../docs/python/gettingstarted/helloworld.html">Hello, World!</a></li>
 222   <li><a href="../docs/python/gettingstarted/usingwebapp.html">Using the webapp Framework</a></li>
 223   <li><a href="../docs/python/gettingstarted/usingusers.html">Using the Users Service</a></li>
 224   <li><a href="../docs/python/gettingstarted/handlingforms.html">Handling Forms With webapp</a></li>
 225   <li><a href="../docs/python/gettingstarted/usingdatastore.html">Using the Datastore</a></li>
 226   <li><a href="../docs/python/gettingstarted/templates.html">Using Templates</a></li>
 227   <li><a href="../docs/python/gettingstarted/staticfiles.html">Using Static Files</a></li>
 228   <li><a href="../docs/python/gettingstarted/uploading.html">Uploading Your Application</a></li>
 229
 230         </ul>
 231       </li>
 232       <li><a href="../docs/python/gettingstartedpython27/index.html">Python 2.7</a>
 233         <ul>
 234             <li><a href="../docs/python/gettingstartedpython27/introduction.html">Introduction</a></li>
 235   <li><a href="../docs/python/gettingstartedpython27/devenvironment.html">The Development Environment</a></li>
 236   <li><a href="../docs/python/gettingstartedpython27/helloworld.html">Hello, World!</a></li>
 237   <li><a href="../docs/python/gettingstartedpython27/usingwebapp.html">Explaining the webapp2 Framework</a></li>
 238   <li><a href="../docs/python/gettingstartedpython27/usingusers.html">Using the Users Service</a></li>
 239   <li><a href="../docs/python/gettingstartedpython27/handlingforms.html">Handling Forms With webapp</a></li>
 240   <li><a href="../docs/python/gettingstartedpython27/usingdatastore.html">Using the Datastore</a></li>
 241   <li><a href="../docs/python/gettingstartedpython27/templates.html">Using Templates</a></li>
 242   <li><a href="../docs/python/gettingstartedpython27/staticfiles.html">Using Static Files</a></li>
 243   <li><a href="../docs/python/gettingstartedpython27/uploading.html">Uploading Your Application</a></li>
 244
 245         </ul>
 246       </li>
 247       <li><a href="../docs/go/gettingstarted/index.html">Go</a>
 248         <ul>
 249           <li><span class="exp-feat">Experimental!</span></li>
 250             <li><a href="../docs/go/gettingstarted/introduction.html">Introduction</a></li>
 251   <li><a href="../docs/go/gettingstarted/devenvironment.html">The Development Environment</a></li>
 252   <li><a href="../docs/go/gettingstarted/helloworld.html">Hello, World!</a></li>
 253   <li><a href="../docs/go/gettingstarted/usingusers.html">Using the Users Service</a></li>
 254   <li><a href="../docs/go/gettingstarted/handlingforms.html">Handling Forms</a></li>
 255   <li><a href="../docs/go/gettingstarted/usingdatastore.html">Using the Datastore</a></li>
 256   <li><a href="../docs/go/gettingstarted/uploading.html">Uploading Your Application</a></li>
 257
 258         </ul>
 259       </li>
 260     </ul>
 261   </li>
 262 </ul>
 263 <div class="line"></div>
 264 <ul>
 265   <li><h2>Java</h2>
 266     <ul>
 267           <li><a href="../docs/java/overview.html">Overview</a></li>
 268     <li><a href="../docs/java/runtime.html">Servlet Environment</a></li>
 269     <li><a href="../docs/java/backends/index.html">Backends</a>
 270       <ul>
 271         <li><a href="../docs/java/backends/overview.html">Overview</a></li>
 272 <li><a href="../docs/java/javadoc/com/google/appengine/api/backends/package-summary.html">Javadoc Reference</a></li>
 273
 274
 275       </ul>
 276     </li>
 277     <li><a href="../docs/java/datastore/index.html">Storing Data</a>
 278       <ul>
 279             <li><a href="../docs/java/datastore/overview.html">Overview</a></li>
 280     <li><a href="../docs/java/datastore/entities.html">Entities</a></li>
 281     <li><a href="../docs/java/datastore/queries.html">Queries</a></li>
 282     <li><a href="../docs/java/datastore/transactions.html">Transactions</a></li>
 283     <li><a href="../docs/java/datastore/hr/index.html">Choosing a Datastore</a></li>
 284     <li><a href="../docs/java/datastore/hr/overview.html">Using the High Replication Datastore</a></li>
 285     <li><a href="../docs/java/datastore/metadataqueries.html">Metadata Queries</a></li>
 286     <li><a href="../docs/java/datastore/stats.html">Statistics</a></li>
 287     <li><a href="../docs/java/datastore/async.html">Async API</a></li>
 288     <li><a href="../docs/java/datastore/callbacks.html">Callbacks</a></li>
 289     <li><a href="../docs/java/datastore/jdo/index.html">JDO</a>
 290       <ul>
 291             <li><a href="../docs/java/datastore/jdo/overview.html">Overview</a></li>
 292     <li><a href="../docs/java/datastore/jdo/dataclasses.html">Defining Data Classes with JDO</a></li>
 293     <li><a href="../docs/java/datastore/jdo/creatinggettinganddeletingdata.html">Creating, Getting, and Deleting Data in JDO</a></li>
 294     <li><a href="../docs/java/datastore/jdo/relationships.html">Entity Relationships in JDO</a></li>
 295     <li><a href="../docs/java/datastore/jdo/queries.html">Queries in JDO</a></li>
 296
 297       </ul>
 298     </li>
 299     <li><a href="../docs/java/datastore/jpa/index.html">JPA</a>
 300       <ul>
 301             <li><a href="../docs/java/datastore/jpa/overview.html">Overview</a></li>
 302
 303       </ul>
 304     </li>
 305     <li><a href="../docs/java/javadoc/com/google/appengine/api/datastore/package-summary.html">Javadoc Reference</a></li>
 306
 307       </ul>
 308     </li>
 309     <li><a href="../docs/java/apis.html">Services</a>
 310       <ul>
 311         <li><a href="../docs/java/appidentity/index.html">App Identity</a>
 312           <ul>
 313             <li><a href="../docs/java/appidentity/overview.html">Overview</a></li>
 314
 315 <li><a href="../docs/java/javadoc/com/google/appengine/api/appidentity/package-summary.html">Low-level API</a></li>
 316
 317           </ul>
 318         </li>
 319         <li><a href="../docs/java/blobstore/index.html">Blobstore</a>
 320           <ul>
 321             <li><a href="../docs/java/blobstore/overview.html">Overview</a></li>
 322 <li><span class="tlw-title tlw-expanded">Reference</span>
 323   <ul>
 324     <li><a href="../docs/java/javadoc/com/google/appengine/api/blobstore/package-summary.html">API Reference</a></li>
 325   </ul>
 326 </li>
 327
 328           </ul>
 329         </li>
 330         <li><a href="../docs/java/googlestorage/index.html">Google Cloud Storage</a>
 331           <ul>
 332             <li><a href="../docs/java/googlestorage/overview.html">Overview</a></li>
 333 <li><a href="../docs/java/javadoc/com/google/appengine/api/files/package-summary.html">API Reference</a></li>
 334     </li>
 335
 336
 337           </ul>
 338         </li>
 339         <li><a href="../docs/java/capabilities/index.html">Capabilities</a>
 340           <ul>
 341             <li><a href="../docs/java/capabilities/overview.html">Overview</a></li>
 342 <li><a href="../docs/java/javadoc/com/google/appengine/api/capabilities/package-summary.html">Javadoc Reference</a></li>
 343
 344           </ul>
 345         </li>
 346         <li><a href="../docs/java/conversion/index.html">Conversion</a>
 347           <ul>
 348             <li><a href="../docs/java/conversion/overview.html">Overview</a></li>
 349 <li><a href="../docs/java/javadoc/com/google/appengine/api/conversion/package-summary.html">Javadoc Reference</a></li>
 350
 351           </ul>
 352         </li>
 353         <li><a href="../docs/java/channel/index.html">Channel</a>
 354           <ul>
 355             <li><a href="../docs/java/channel/overview.html">Overview</a></li>
 356 <li><a href="../docs/java/javadoc/com/google/appengine/api/channel/package-summary.html">Javadoc Reference</a></li>
 357 <li><a href="../docs/java/channel/javascript.html">JavaScript Reference</a></li>
 358
 359           </ul>
 360         </li>
 361         <li><a href="../docs/java/images/index.html">Images</a>
 362           <ul>
 363                 <li><a href="../docs/java/images/overview.html">Overview</a></li>
 364     <li><a href="../docs/java/javadoc/com/google/appengine/api/images/package-summary.html">API Reference</a></li>
 365
 366           </ul>
 367         </li>
 368         <li><a href="../docs/java/mail/index.html">Mail</a>
 369           <ul>
 370                 <li><a href="../docs/java/mail/overview.html">Overview</a></li>
 371     <li><a href="../docs/java/mail/usingjavamail.html">Using JavaMail to Send Mail</a></li>
 372     <li><a href="../docs/java/mail/receiving.html">Receiving Mail</a></li>
 373     <li><a href="../docs/java/javadoc/com/google/appengine/api/mail/package-summary.html">Low-level API</a></li>
 374
 375           </ul>
 376         </li>
 377         <li><a href="../docs/java/memcache/index.html">Memcache</a>
 378           <ul>
 379                 <li><a href="../docs/java/memcache/overview.html">Overview</a></li>
 380     <li><a href="../docs/java/memcache/usingjcache.html">Using JCache</a></li>
 381     <li><a href="../docs/java/javadoc/com/google/appengine/api/memcache/package-summary.html">Low-level API</a></li>
 382
 383           </ul>
 384         </li>
 385         <li><a href="../docs/java/multitenancy/index.html">Multitenancy</a>
 386           <ul>
 387                   <li><a href="../docs/java/multitenancy/overview.html">Overview</a></li>
 388     <li><a href="../docs/java/multitenancy/multitenancy.html">Multitenancy with Namespaces</a></li>
 389     <li><a href="../docs/java/multitenancy/namespaces.html">Other Uses for Namespaces</a></li>
 390     <li><a href="../docs/java/javadoc/com/google/appengine/api/NamespaceManager.html">API Reference</a></li>
 391
 392           </ul>
 393         </li>
 394         <li><a href="../docs/java/oauth/index.html">OAuth</a>
 395           <ul>
 396                 <li><a href="../docs/java/oauth/overview.html">Overview</a></li>
 397     <li><a href="../docs/java/javadoc/com/google/appengine/api/oauth/package-summary.html">API Reference</a></li>
 398
 399
 400           </ul>
 401         </li>
 402         <li><a href="../docs/java/prospectivesearch/index.html">Prospective Search</a>
 403           <ul>
 404             <li><a href="../docs/java/prospectivesearch/overview.html">Overview</a></li>
 405 <li><a href="../docs/java/javadoc/com/google/appengine/api/prospectivesearch/package-summary.html">Javadoc Reference</a></li>
 406
 407           </ul>
 408         </li>
 409         </li>
 410         <li><a href="../docs/java/taskqueue/index.html">Task Queues</a>
 411           <ul>
 412                  <li><a href="../docs/java/taskqueue/overview.html">Overview</a></li>
 413      <li><a href="../docs/java/taskqueue/overview-push.html">Using Push Queues</a></li>
 414      <li><a href="../docs/java/taskqueue/overview-pull.html">Using Pull Queues</a><sup class="new">New!</sup></li>
 415      <li><a href="../docs/java/javadoc/com/google/appengine/api/taskqueue/package-summary.html">Javadoc Reference</a></li>
 416      <li><a href="../docs/java/taskqueue/rest.html">REST reference</a> <span class="exp-feat">(Experimental)</span></li>
 417           </ul>
 418         </li>
 419         <li><a href="../docs/java/urlfetch/index.html">URL Fetch</a>
 420           <ul>
 421                 <li><a href="../docs/java/urlfetch/overview.html">Overview</a></li>
 422     <li><a href="../docs/java/urlfetch/usingjavanet.html">Using java.net</a></li>
 423     <li><a href="../docs/java/javadoc/com/google/appengine/api/urlfetch/package-summary.html">Low-level API</a></li>
 424
 425           </ul>
 426         </li>
 427         <li><a href="../docs/java/users/index.html">Users</a>
 428           <ul>
 429                 <li><a href="../docs/java/users/overview.html">Overview</a></li>
 430     <li><a href="../docs/java/javadoc/com/google/appengine/api/users/package-summary.html">API Reference</a></li>
 431
 432           </ul>
 433         </li>
 434         <li><a href="../docs/java/xmpp/index.html">XMPP</a>
 435           <ul>
 436                  <li><a href="../docs/java/xmpp/overview.html">Overview</a></li>
 437      <li><a href="../docs/java/javadoc/com/google/appengine/api/xmpp/package-summary.html">API Reference</a></li>
 438
 439           </ul>
 440         </li>
 441       </ul>
 442     </li>
 443     <li><a href="../docs/java/javadoc/index.html">Services Javadoc</a></li>
 444     <li><a href="../docs/java/jrewhitelist.html">JRE Class White List</a></li>
 445     <li><a href="../docs/java/config/index.html">Configuration</a>
 446       <ul>
 447             <li><a href="../docs/java/config/webxml.html">Deployment Descriptor</a></li>
 448     <li><a href="../docs/java/config/appconfig.html">App Config</a></li>
 449     <li><a href="../docs/java/config/backends.html">Backends Config</a></li>
 450     <li><a href="../docs/java/config/indexconfig.html">Index Config</a></li>
 451     <li><a href="../docs/java/config/cron.html">Scheduled Tasks</a></li>
 452     <li><a href="../docs/java/config/queue.html">Task Queue Config</a></li>
 453     <li><a href="../docs/java/config/dos.html">DoS Protection Config</a></li>
 454
 455       </ul>
 456     </li>
 457     <li><a href="../docs/java/configyaml/index.html">YAML Configuration</a>
 458       <ul>
 459                 <li><a href="../docs/java/configyaml/appconfig_yaml.html">YAML App Config</a></li>
 460         <li><a href="../docs/java/configyaml/backends.html">Backends Config</a></li>
 461         <li><a href="../docs/java/configyaml/indexconfig.html">Index Config</a></li>
 462         <li><a href="../docs/java/configyaml/cron.html">Scheduled Tasks</a></li>
 463         <li><a href="../docs/java/configyaml/queue.html">Task Queue Config</a></li>
 464         <li><a href="../docs/java/configyaml/dos.html">DoS Protection Config</a></li>
 465
 466       </ul>
 467     </li>
 468     <li><a href="../docs/java/tools/index.html">Tools</a>
 469       <ul>
 470             <li><a href="../docs/java/tools/devserver.html">Development Server</a></li>
 471     <li><a href="../docs/java/tools/uploadinganapp.html">Uploading and Managing an App</a></li>
 472     <li><a href="../docs/java/tools/eclipse.html">Google Plugin for Eclipse</a></li>
 473     <li><a href="../docs/java/tools/ant.html">Using Apache Ant</a></li>
 474     <li><a href="../docs/java/tools/capabilities.html">Capabilities Service Test Configuration</a>
 475     <li><a href="../docs/java/tools/localunittesting.html">Local Unit Testing</a>
 476         <ul>
 477             <li><a href="../docs/java/tools/localunittesting/javadoc/index.html">Testing Javadoc</a></li>
 478         </ul>
 479     </li>
 480     <li><a href="../docs/java/tools/appstats.html">Appstats</a></li>
 481     <li><a href="../docs/java/tools/remoteapi.html">Remote API</a></li>
 482
 483       </ul>
 484     </li>
 485     <li><a href="../docs/java/howto/index.html">How-To</a>
 486       <ul>
 487               <li><a href="../docs/java/howto/maintenance.html">Handling Scheduled Maintenance Periods</a></li>
 488
 489       </ul>
 490     </li>
 491
 492     </ul>
 493   </li>
 494 </ul>
 495 <div class="line"></div>
 496 <ul>
 497   <li><h2>Python</h2>
 498     <ul>
 499           <li><a href="../docs/python/overview.html">Overview</a></li>
 500     <li><a href="../docs/python/runtime.html">Runtime Environment</a></li>
 501     <li><a href="../docs/python/python27/index.html">Python 2.7</a>
 502       <ul>
 503             <li><a href="../docs/python/python27/newin27.html">What's New in Python 2.7</a></li>
 504     <li><a href="../docs/python/python27/using27.html">Using Python 2.7</a></li>
 505
 506       </ul>
 507     </li>
 508     <li><a href="../docs/python/backends/index.html">Backends</a>
 509       <ul>
 510         <li><a href="../docs/python/backends/overview.html">Overview</a></li>
 511 <li><span class="tlw-title tlw-expanded">Reference</span>
 512   <ul>
 513     <li><a href="../docs/python/backends/functions.html">Backends API Functions</a></li>
 514     <li><a href="../docs/python/backends/exceptions.html">Backends API Exceptions</a></li>
 515     <li><a href="../docs/python/backends/logserviceapi.html">LogService API</a></li>
 516     <li><a href="../docs/python/backends/applog.html">AppLog Class</a></li>
 517     <li><a href="../docs/python/backends/requestlog.html">RequestLog Class</a></li>
 518     <li><a href="../docs/python/backends/runtimeapi.html">Runtime API</a></li>
 519   </ul>
 520 </li>
 521
 522       </ul>
 523     </li>
 524     <li><a href="../docs/python/datastore/index.html">Storing Data</a>
 525       <ul>
 526               <li><a href="../docs/python/datastore/overview.html">Datastore Overview</a></li>
 527       <li><a href="../docs/python/datastore/entities.html">Entities</a></li>
 528       <li><a href="../docs/python/datastore/queries.html">Queries</a></li>
 529       <li><a href="../docs/python/datastore/transactions.html">Transactions</a></li>
 530       <li><a href="../docs/python/datastore/datamodeling.html">Data Modeling</a></li>
 531       <li><a href="../docs/python/datastore/gqlreference.html">GQL Reference</a></li>
 532       <li><a href="../docs/python/datastore/hr/index.html">Choosing a Datastore</a></li>
 533       <li><a href="../docs/python/datastore/hr/overview.html">Using the High Replication Datastore</a></li>
 534       <li><a href="../docs/python/datastore/metadataqueries.html">Metadata Queries</a></li>
 535       <li><a href="../docs/python/datastore/stats.html">Statistics</a></li>
 536       <li><a href="../docs/python/datastore/async.html">Async API</a></li>
 537       <li><span class="tlw-title tlw-expanded">Reference</span>
 538         <ul>
 539           <li><a href="../docs/python/datastore/typesandpropertyclasses.html">Types and Property Classes</a></li>
 540           <li><a href="../docs/python/datastore/gqlreference.html">GQL Reference</a></li>
 541           <li><a href="../docs/python/datastore/modelclass.html">Model</a></li>
 542           <li><a href="../docs/python/datastore/expandoclass.html">Expando</a></li>
 543           <li><a href="../docs/python/datastore/polymodelclass.html">PolyModel</a></li>
 544           <li><a href="../docs/python/datastore/propertyclass.html">Property</a></li>
 545           <li><a href="../docs/python/datastore/queryclass.html">Query</a></li>
 546           <li><a href="../docs/python/datastore/gqlqueryclass.html">GqlQuery</a></li>
 547           <li><a href="../docs/python/datastore/metadataqueryclass.html">Metadata Query</a></li>
 548           <li><a href="../docs/python/datastore/keyclass.html">Key</a></li>
 549           <li><a href="../docs/python/datastore/functions.html">Functions</a></li>
 550           <li><a href="../docs/python/datastore/exceptions.html">Exceptions</a></li>
 551         </ul>
 552       </li>
 553
 554       </ul>
 555     </li>
 556     <li><a href="../docs/python/dataprocessing/index.html">Data Processing</a>
 557       <ul>
 558              <li><a href="../docs/python/dataprocessing/overview.html">Overview</a></li>
 559      <li><a href="../docs/python/dataprocessing/helloworld.html">Hello World</a></li>
 560      <li><span class="tlw-title tlw-expanded">Reference</span>
 561        <ul>
 562          <li><a href="../docs/python/dataprocessing/mapreducepipelineclass.html">Mapreduce Pipline</a></li>
 563          <li><a href="../docs/python/dataprocessing/readers_writers.html">Standard Input Readers and Output Writers</a></li>
 564        </ul>
 565      </li>
 566
 567       </ul>
 568     </li>
 569     <li><a href="../docs/python/apis.html">Services</a>
 570       <ul>
 571         <li><a href="../docs/python/appidentity/index.html">App Identity</a>
 572           <ul>
 573             <li><a href="../docs/python/appidentity/overview.html">Overview</a></li>
 574 <li><span class="tlw-title tlw-expanded">Reference</span>
 575   <ul>
 576     <li><a href="../docs/python/appidentity/functions.html">Functions</a></li>
 577     <li><a href="../docs/python/appidentity/exceptions.html">Exceptions</a></li>
 578   </ul>
 579 </li>
 580
 581           </ul>
 582         </li>
 583         <li><a href="../docs/python/blobstore/index.html">Blobstore</a>
 584           <ul>
 585             <li><a href="../docs/python/blobstore/overview.html">Overview</a></li>
 586 <li><span class="tlw-title tlw-expanded">Reference</span>
 587   <ul>
 588     <li><a href="../docs/python/blobstore/blobinfoclass.html">BlobInfo</a></li>
 589     <li><a href="../docs/python/blobstore/blobkeyclass.html">BlobKey</a></li>
 590     <li><a href="../docs/python/blobstore/blobreaderclass.html">BlobReader</a></li>
 591     <li><a href="../docs/python/blobstore/functions.html">Functions</a></li>
 592     <li><a href="../docs/python/blobstore/exceptions.html">Exceptions</a></li>
 593   </ul>
 594 </li>
 595
 596           </ul>
 597         </li>
 598         <li><a href="../docs/python/capabilities/index.html">Capabilities</a>
 599           <ul>
 600             <li><a href="../docs/python/capabilities/overview.html">Overview</a></li>
 601 <li><span class="tlw-title tlw-expanded">Reference</span>
 602   <ul>
 603     <li><a href="../docs/python/capabilities/capabilitysetclass.html">CapabilitySet</a></li>
 604     <li><a href="../docs/python/capabilities/exceptions.html">Exceptions</a></li>
 605   </ul>
 606 </li>
 607
 608           </ul>
 609         </li>
 610         <li><a href="../docs/python/conversion/index.html">Conversion</a>
 611           <ul>
 612             <li><a href="../docs/python/conversion/overview.html">Overview</a></li>
 613 <li><span class="tlw-title tlw-expanded">Reference</span>
 614   <ul>
 615     <li><a href="../docs/python/conversion/conversionclass.html">Conversion Class</a></li>
 616     <li><a href="../docs/python/conversion/propertyclasses.html">Property Classes</a></li>
 617     <li><a href="../docs/python/conversion/functions.html">Functions</a></li>
 618     <li><a href="../docs/python/conversion/exceptions.html">Exceptions</a></li>
 619   </ul>
 620 </li>
 621
 622           </ul>
 623         </li>
 624         <li><a href="../docs/python/channel/index.html">Channel</a>
 625           <ul>
 626             <li><a href="../docs/python/channel/overview.html">Overview</a></li>
 627 <li><span class="tlw-title tlw-expanded">Reference</span>
 628   <ul>
 629     <li><a href="../docs/python/channel/functions.html">Functions</a></li>
 630     <li><a href="../docs/python/channel/exceptions.html">Exceptions</a></li>
 631     <li><a href="../docs/python/channel/javascript.html">Client Javascript Reference</a></li>
 632   </ul>
 633 </li>
 634
 635           </ul>
 636         </li>
 637         <li><a href="../docs/python/images/index.html">Images</a>
 638           <ul>
 639                  <li><a href="../docs/python/images/overview.html">Overview</a></li>
 640      <li><a href="../docs/python/images/installingPIL.html">Installing PIL</a></li>
 641      <li><a href="../docs/python/images/usingimages.html">Using the Images API</a></li>
 642      <li><span class="tlw-title tlw-expanded">Reference</span>
 643        <ul>
 644          <li><a href="../docs/python/images/imageclass.html">Image</a></li>
 645          <li><a href="../docs/python/images/functions.html">Functions</a></li>
 646          <li><a href="../docs/python/images/exceptions.html">Exceptions</a></li>
 647        </ul>
 648      </li>
 649
 650           </ul>
 651         </li>
 652         <li><a href="../docs/python/mail/index.html">Mail</a>
 653           <ul>
 654                  <li><a href="../docs/python/mail/overview.html">Overview</a></li>
 655      <li><a href="../docs/python/mail/sendingmail.html">Sending Mail</a></li>
 656      <li><a href="../docs/python/mail/receivingmail.html">Receiving Mail</a></li>
 657      <li><a href="../docs/python/mail/attachments.html">Attachments</a></li>
 658      <li><a href="../docs/python/mail/headers.html">Headers</a></li>
 659      <li><span class="tlw-title tlw-expanded">Reference</span>
 660        <ul>
 661          <li><a href="../docs/python/mail/emailmessageclass.html">EmailMessage</a></li>
 662          <li><a href="../docs/python/mail/emailmessagefields.html">Message Fields</a></li>
 663          <li><a href="../docs/python/mail/functions.html">Functions</a></li>
 664          <li><a href="../docs/python/mail/exceptions.html">Exceptions</a></li>
 665        </ul>
 666      </li>
 667
 668           </ul>
 669         </li>
 670         <li><a href="../docs/python/memcache/index.html">Memcache</a>
 671           <ul>
 672                  <li><a href="../docs/python/memcache/overview.html">Overview</a></li>
 673       <li><a href="../docs/python/memcache/usingmemcache.html">Using Memcache</a></li>
 674      <li><span class="tlw-title tlw-expanded">Reference</span>
 675        <ul>
 676          <li><a href="../docs/python/memcache/clientclass.html">Client</a></li>
 677          <li><a href="../docs/python/memcache/functions.html">Functions</a></li>
 678        </ul>
 679      </li>
 680
 681           </ul>
 682         </li>
 683         <li><a href="../docs/python/multitenancy/index.html">Multitenancy</a>
 684           <ul>
 685                   <li><a href="../docs/python/multitenancy/overview.html">Overview</a></li>
 686     <li><a href="../docs/python/multitenancy/multitenancy.html">Multitenancy with Namespaces</a></li>
 687     <li><a href="../docs/python/multitenancy/namespaces.html">Other Uses for Namespaces</a></li>
 688     <li>Reference
 689       <ul>
 690         <li><a href="../docs/python/multitenancy/functions.html">Functions</a></li>
 691         <li><a href="../docs/python/multitenancy/exceptions.html">Exceptions</a></li>
 692       </ul>
 693     </li>
 694
 695           </ul>
 696         </li>
 697         <li><a href="../docs/python/oauth/index.html">OAuth</a>
 698           <ul>
 699                  <li><a href="../docs/python/oauth/overview.html">Overview</a></li>
 700      <li><span class="tlw-title tlw-expanded">Reference</span>
 701        <ul>
 702          <li><a href="../docs/python/oauth/functions.html">Functions</a></li>
 703          <li><a href="../docs/python/oauth/exceptions.html">Exceptions</a></li>
 704        </ul>
 705      </li>
 706
 707           </ul>
 708         </li>
 709         <li><a href="../docs/python/prospectivesearch/index.html">Prospective Search</a>
 710           <ul>
 711             <li><a href="../docs/python/prospectivesearch/overview.html">Overview</a></li>
 712 <li><span class="tlw-title tlw-expanded">Reference</span>
 713   <ul>
 714     <li><a href="../docs/python/prospectivesearch/functions.html">Functions</a></li>
 715     <li><a href="../docs/python/prospectivesearch/exceptions.html">Exceptions</a></li>
 716   </ul>
 717 </li>
 718
 719           </ul>
 720         </li>
 721          <li><a href="../docs/python/googlestorage/index.html">Google Cloud Storage</a>
 722           <ul>
 723             <li><a href="../docs/python/googlestorage/overview.html">Overview</a></li>
 724 <li><a href="../docs/python/googlestorage/functions.html">Functions</a></li>
 725 <li><a href="../docs/python/googlestorage/exceptions.html">Exceptions</a></li>
 726     </li>
 727
 728
 729           </ul>
 730         </li>
 731         <li><a href="../docs/python/taskqueue/index.html">Task Queues</a>
 732           <ul>
 733                  <li><a href="../docs/python/taskqueue/overview.html">Overview</a></li>
 734      <li><a href="../docs/python/taskqueue/overview-push.html">Using Push Queues</a></li>
 735      <li><a href="../docs/python/taskqueue/overview-pull.html">Using Pull Queues</a><sup class="new">New!</sup></li>
 736      <li><span class="tlw-title tlw-expanded">Reference</span>
 737        <ul>
 738          <li><a href="../docs/python/taskqueue/tasks.html">Task Class</a></li>
 739          <li><a href="../docs/python/taskqueue/taskretryoptions.html">TaskRetryOptions Class</a></li>
 740          <li><a href="../docs/python/taskqueue/queues.html">Queue Class</a></li>
 741          <li><a href="../docs/python/taskqueue/rest.html">REST</a>  <span class="exp-feat">(Experimental)</span></li>
 742          <li><a href="../docs/python/taskqueue/functions.html">Functions</a></li>
 743          <li><a href="../docs/python/taskqueue/exceptions.html">Exceptions</a></li>
 744        </ul>
 745      </li>
 746
 747           </ul>
 748         </li>
 749         <li><a href="../docs/python/urlfetch/index.html">URL Fetch</a>
 750           <ul>
 751                  <li><a href="../docs/python/urlfetch/overview.html">Overview</a></li>
 752      <li><span class="tlw-title tlw-expanded">Reference</span>
 753        <ul>
 754          <li><a href="../docs/python/urlfetch/fetchfunction.html">The fetch Function</a></li>
 755          <li><a href="../docs/python/urlfetch/asynchronousrequests.html">Asynchronous Requests</a></li>
 756          <li><a href="../docs/python/urlfetch/responseobjects.html">Response Objects</a></li>
 757          <li><a href="../docs/python/urlfetch/exceptions.html">Exceptions</a></li>
 758        </ul>
 759      </li>
 760
 761           </ul>
 762         </li>
 763         <li><a href="../docs/python/users/index.html">Users</a>
 764           <ul>
 765                  <li><a href="../docs/python/users/overview.html">Overview</a></li>
 766      <li><a href="../docs/python/users/userobjects.html">User Objects</a></li>
 767      <li><a href="../docs/python/users/loginurls.html">Login URLs</a></li>
 768      <li><a href="../docs/python/users/adminusers.html">Admin Users</a></li>
 769
 770      <li><span class="tlw-title tlw-expanded">Reference</span>
 771        <ul>
 772          <li><a href="../docs/python/users/userclass.html">User</a></li>
 773          <li><a href="../docs/python/users/functions.html">Functions</a></li>
 774          <li><a href="../docs/python/users/exceptions.html">Exceptions</a></li>
 775        </ul>
 776      </li>
 777
 778           </ul>
 779         </li>
 780         <li><a href="../docs/python/xmpp/index.html">XMPP</a>
 781           <ul>
 782                  <li><a href="../docs/python/xmpp/overview.html">Overview</a></li>
 783      <li><span class="tlw-title tlw-expanded">Reference</span>
 784        <ul>
 785          <li><a href="../docs/python/xmpp/functions.html">Functions</a></li>
 786          <li><a href="../docs/python/xmpp/messageclass.html">Message</a></li>
 787          <li><a href="../docs/python/xmpp/exceptions.html">Exceptions</a></li>
 788        </ul>
 789      </li>
 790
 791           </ul>
 792         </li>
 793       </ul>
 794     </li>
 795     <li><a href="../docs/python/config/index.html">Configuration</a>
 796       <ul>
 797             <li><a href="../docs/python/config/appconfig.html">App Config</a></li>
 798     <li><a href="../docs/python/config/backends.html">Backends Config</a></li>
 799     <li><a href="../docs/python/config/indexconfig.html">Index Config</a></li>
 800     <li><a href="../docs/python/config/cron.html">Scheduled Tasks</a></li>
 801     <li><a href="../docs/python/config/queue.html">Task Queue Config</a></li>
 802     <li><a href="../docs/python/config/dos.html">DoS Protection Config</a></li>
 803
 804       </ul>
 805     </li>
 806     <li><span class="tlw-title"><a href="../docs/python/tools/index.html">Tools</a></span>
 807       <ul>
 808             <li><a href="../docs/python/tools/devserver.html">Development Server</a></li>
 809     <li><a href="../docs/python/tools/uploadinganapp.html">Uploading and Managing an App</a></li>
 810     <li><a href="../docs/python/tools/uploadingdata.html">Uploading and Downloading Data</a></li>
 811     <li><span class="tlw-title"><a href="../docs/python/tools/protorpc/index.html">ProtoRPC</a></span>
 812       <ul>
 813         <li><a href="../docs/python/tools/protorpc/overview.html">Overview</a></li>
 814 <li><a href="../docs/python/tools/protorpc/definition-functions.html">Definition Module</a></li>
 815 <li>Descriptor Module
 816   <ul>
 817         <li><a href="../docs/python/tools/protorpc/descriptor/descriptorlibrary.html">DescriptorLibrary Functions</a></li>
 818     <li><a href="../docs/python/tools/protorpc/descriptor/functions.html">Functions</a></li>
 819
 820   </ul>
 821 </li>
 822 <li>Messages Module
 823   <ul>
 824         <li><a href="../docs/python/tools/protorpc/messages/enumclass.html">Enum</a></li>
 825     <li><a href="../docs/python/tools/protorpc/messages/enumfieldclass.html">EnumField</a></li>
 826     <li><a href="../docs/python/tools/protorpc/messages/fieldclass.html">Field</a></li>
 827     <li><a href="../docs/python/tools/protorpc/messages/fieldclasses.html">Message Field Classes</a></li>
 828     <li><a href="../docs/python/tools/protorpc/messages/messageclass.html">Message</a></li>
 829     <li><a href="../docs/python/tools/protorpc/messages/messagefieldclass.html">MessageField</a></li>
 830     <li><a href="../docs/python/tools/protorpc/messages/variantclass.html">Variant</a></li>
 831     <li><a href="../docs/python/tools/protorpc/messages/functions.html">Functions</a></li>
 832     <li><a href="../docs/python/tools/protorpc/messages/exceptions.html">Exceptions</a></li>
 833   </ul>
 834 </li>
 835 <li>Remote Service Library
 836   <ul>
 837         <li><a href="../docs/python/tools/protorpc/remote/index.html">Overview</a></li>
 838     <li><a href="../docs/python/tools/protorpc/remote/httprequeststateclass.html">HttpRequestState Class</a></li>
 839     <li><a href="../docs/python/tools/protorpc/remote/requeststateclass.html">RequestState Class</a></li>
 840     <li><a href="../docs/python/tools/protorpc/remote/rpcstatusclass.html">RpcStatus Class</a></li>
 841     <li><a href="../docs/python/tools/protorpc/remote/serviceclass.html">Service Class</a></li>
 842     <li><a href="../docs/python/tools/protorpc/remote/functions.html">Functions</a></li>
 843     <li><a href="../docs/python/tools/protorpc/remote/exceptions.html">Exceptions</a></li>
 844
 845   </ul>
 846 </li>
 847 <li>Transport Library
 848   <ul>
 849         <li><a href="../docs/python/tools/protorpc/transport/httptransport.html">HttpTransport Class</a></li>
 850     <li><a href="../docs/python/tools/protorpc/transport/transport.html">Transport Class</a></li>
 851
 852   </ul>
 853 </li>
 854 <li>WebApp Service Handlers
 855   <ul>
 856         <li><a href="../docs/python/tools/protorpc/webapp/index.html">Overview</a></li>
 857     <li><a href="../docs/python/tools/protorpc/webapp/functions.html">WebApp Service Handlers</a></li>
 858
 859   </ul>
 860 </li>
 861
 862       </ul>
 863     </li>
 864     <li><a href="../docs/python/tools/webapp/index.html">webapp Framework</a>
 865       <ul>
 866              <li><a href="../docs/python/tools/webapp/overview.html">Overview</a></li>
 867      <li><a href="../docs/python/tools/webapp/running.html">Running the Application</a></li>
 868      <li><a href="../docs/python/tools/webapp/requesthandlers.html">Request Handlers</a></li>
 869      <li><a href="../docs/python/tools/webapp/requestdata.html">Request Data</a></li>
 870      <li><a href="../docs/python/tools/webapp/buildingtheresponse.html">Building the Response</a></li>
 871      <li><a href="../docs/python/tools/webapp/redirects.html">Redirects, Headers and Status Codes</a></li>
 872      <li><a href="../docs/python/tools/webapp/blobstorehandlers.html">Blobstore Handlers</a></li>
 873
 874      <li><span class="tlw-title tlw-expanded">Reference</span>
 875        <ul>
 876          <li><a href="../docs/python/tools/webapp/requestclass.html">Request</a></li>
 877          <li><a href="../docs/python/tools/webapp/responseclass.html">Response</a></li>
 878          <li><a href="../docs/python/tools/webapp/requesthandlerclass.html">RequestHandler</a></li>
 879          <li><a href="../docs/python/tools/webapp/wsgiapplicationclass.html">WSGIApplication</a></li>
 880          <li><a href="../docs/python/tools/webapp/utilmodule.html">Utility Functions</a></li>
 881
 882        </ul>
 883      </li>
 884
 885       </ul>
 886     </li>
 887     <li><a href="../docs/python/tools/localunittesting.html">Local Unit Testing</a></li>
 888     <li><a href="../docs/python/tools/appstats.html">Appstats</a></li>
 889     <li><a href="../docs/python/tools/libraries.html">Included Libraries </a>(Python 2.5)</li>
 890     <li><a href="../docs/python/tools/libraries27.html">Included Libraries</a>(Python 2.7)</li>
 891     <li><a href="../docs/python/tools/appengineconfig.html">Python Module Configuration</a></li>
 892
 893       </ul>
 894     </li>
 895     <li><a href="../docs/python/howto/index.html">How-To</a>
 896       <ul>
 897               <li><a href="../docs/python/howto/usinggdataservices.html">Google Data Services</a></li>
 898       <li><a href="../docs/python/howto/maintenance.html">Handling Scheduled Maintenance Periods</a></li>
 899
 900       </ul>
 901     </li>
 902
 903     </ul>
 904   </li>
 905 </ul>
 906 <div class="line"></div>
 907 <ul>
 908   <li><h2>Go</h2> <span class="exp-feat">Experimental!</span>
 909     <ul>
 910           <li><a href="../docs/go/overview.html">Overview</a></li>
 911     <li><a href="../docs/go/runtime.html">Runtime Environment</a>
 912       <ul>
 913         <li><a href="../docs/go/reference.html">Reference</a></li>
 914       </ul>
 915     </li>
 916     <li><a href="../docs/go/backends/index.html">Backends</a>
 917       <ul>
 918         <li><a href="../docs/go/backends/overview.html">Overview</a></li>
 919 <li><a href="../docs/go/backends/runtime.html">Runtime package</a></li>
 920
 921       </ul>
 922     </li>
 923     <li><a href="../docs/go/datastore/index.html">Storing Data</a>
 924       <ul>
 925              <li><a href="../docs/go/datastore/overview.html">Overview</a></li>
 926      <li><a href="../docs/go/datastore/transactions.html">Transactions</a></li>
 927      <li><a href="../docs/go/datastore/reference.html">Reference</a></li>
 928
 929       </ul>
 930     </li>
 931     <li><a href="../docs/go/apis.html">Services</a>
 932       <ul>
 933         <li><a href="../docs/go/blobstore/index.html">Blobstore</a>
 934           <ul>
 935             <li><a href="../docs/go/blobstore/overview.html">Overview</a></li>
 936 <li><a href="../docs/go/blobstore/reference.html">Reference</a></li>
 937
 938           </ul>
 939         </li>
 940         <li><a href="../docs/go/capabilities/index.html">Capabilities</a>
 941           <ul>
 942             <li><a href="../docs/go/capabilities/overview.html">Overview</a></li>
 943 <li><a href="../docs/go/capabilities/reference.html">Reference</a></li>
 944
 945           </ul>
 946         </li>
 947         <li><a href="../docs/go/channel/index.html">Channel</a>
 948           <ul>
 949             <li><a href="../docs/go/channel/overview.html">Overview</a></li>
 950 <li><a href="../docs/go/channel/reference.html">Reference</a></li>
 951 <li><a href="../docs/go/channel/javascript.html">Client Javascript Reference</a></li>
 952
 953           </ul>
 954         </li>
 955         <li><a href="../docs/go/mail/index.html">Mail</a>
 956           <ul>
 957                  <li><a href="../docs/go/mail/overview.html">Overview</a></li>
 958      <li><a href="../docs/go/mail/reference.html">Reference</a></li>
 959
 960           </ul>
 961         </li>
 962         <li><a href="../docs/go/memcache/index.html">Memcache</a>
 963           <ul>
 964                  <li><a href="../docs/go/memcache/overview.html">Overview</a></li>
 965      <li><a href="../docs/go/memcache/reference.html">Reference</a></li>
 966
 967           </ul>
 968         </li>
 969         <li><a href="../docs/go/taskqueue/index.html">Task Queues</a>
 970           <ul>
 971                  <li><a href="../docs/go/taskqueue/overview.html">Overview</a></li>
 972      <li><a href="../docs/go/taskqueue/reference.html">Reference</a></li>
 973      <li><a href="../docs/go/taskqueue/delay.html">Delay package</a></li>
 974
 975           </ul>
 976         </li>
 977         <li><a href="../docs/go/urlfetch/index.html">URL Fetch</a>
 978           <ul>
 979                  <li><a href="../docs/go/urlfetch/overview.html">Overview</a></li>
 980      <li><a href="../docs/go/urlfetch/reference.html">Reference</a></li>
 981
 982           </ul>
 983         </li>
 984         <li><a href="../docs/go/users/index.html">Users</a>
 985           <ul>
 986                  <li><a href="../docs/go/users/overview.html">Overview</a></li>
 987      <li><a href="../docs/go/users/reference.html">Reference</a></li>
 988
 989           </ul>
 990         </li>
 991       </ul>
 992         <li><a href="../docs/go/config/index.html">Configuration</a>
 993           <ul>
 994                 <li><a href="../docs/go/config/appconfig.html">App Config</a></li>
 995     <li><a href="../docs/go/config/backends.html">Backends Config</a></li>
 996     <li><a href="../docs/go/config/indexconfig.html">Index Config</a></li>
 997     <li><a href="../docs/go/config/cron.html">Scheduled Tasks</a></li>
 998     <li><a href="../docs/go/config/queue.html">Task Queue Config</a></li>
 999     <li><a href="../docs/go/config/dos.html">DoS Protection Config</a></li>
1000
1001           </ul>
1002         </li>
1003         <li><a href="../docs/go/tools/index.html">Tools</a>
1004           <ul>
1005                 <li><a href="../docs/go/tools/devserver.html">Development Server</a></li>
1006     <li><a href="../docs/go/tools/uploadinganapp.html">Uploading and Managing an App</a></li>
1007
1008           </ul>
1009         </li>
1010     </li>
1011
1012     </ul>
1013   </li>
1014 </ul>
1015 <div class="line"></div>
1016 <ul>
1017   <li><h2>Managing Your App</h2>
1018     <ul>
1019       <li><a href="../docs/adminconsole/index.html">Admin Console</a>
1020         <ul>
1021           <li><a href="../docs/adminconsole/instances.html">Instances</a></li>
1022 <li><a href="../docs/adminconsole/roles.html">Roles</a></li>
1023 <li><a href="../docs/adminconsole/applicationsettings.html">Application Settings</a></li>
1024 <li><a href="../docs/adminconsole/datastoreadmin.html">Datastore</a></li>
1025 <li><a href="../docs/adminconsole/performancesettings.html">Performance Settings</a></li>
1026
1027         </ul>
1028       </li>
1029       <li><a href="../docs/quotas.html">Quotas</a></li>
1030       <li><a href="../docs/billing.html">Billing</a></li>
1031       <li><a href="../docs/premier/index.html">Premier Accounts</a></li>
1032       <li><a href="../docs/domain.html">Using a Custom Domain</a></li>
1033     </ul>
1034   </li>
1035 </ul>
1036 <div class="line"></div>
1037 <ul>
1038   <li><h2>Resources</h2>
1039     <ul>
1040       <li><a href="index.html">FAQ</a></li>
1041       <li><a href="../articles/index.html">Articles</a></li>
1042       <li><a href="../docs/videoresources.html">Video Resources</a><sup class="new">New!</sup></li>
1043       <li><a href="http://code.google.com/p/googleappengine/">SDK Code</a></li>
1044       <li><a href="http://code.google.com/p/datanucleus-appengine/">JDO/JPA Code</a></li>
1045       <li><a href="http://code.google.com/p/google-app-engine-samples/">Sample Apps Code</a></li>
1046       <li>Launcher Code
1047         <ul>
1048           <li><a href="http://code.google.com/p/google-appengine-mac-launcher/">Mac</a></li>
1049           <li><a href="http://code.google.com/p/google-appengine-wx-launcher/">Windows/wx</a></li>
1050         </ul>
1051       </li>
1052       <li><a href="../community.html">Discussion Groups</a></li>
1053     </ul>
1054   </li>
1055 </ul>
1056 <div class="line"></div>
1057 <ul>
1058   <li><a href="../docs/roadmap.html">Product Roadmap</a></li>
1059   <li><a href="http://code.google.com/p/googleappengine/wiki/SdkReleaseNotes">Release Notes: Python</a></li>
1060   <li><a href="http://code.google.com/p/googleappengine/wiki/SdkForJavaReleaseNotes">Release Notes: Java</a></li>
1061   <li><a href="../docs/revision_history.html">Revision History</a></li>
1062 </ul>
1063
1064         <a class="hidden" href="#gc-topnav-anchor">More Google App Engine resource links</a>
1065       </div>
1066
1067       <a name="gc-pagecontent-anchor"></a>
1068       <div class="g-unit" id="gc-pagecontent">
1069         <script type="text/javascript">CODESITE_docEarlyProcessing();</script>
1070         <h1 class="page_title">Google App Engine FAQs</h1>
1071
1072
1073
1074
1075 <div id="jd-content">
1076 <div class="jd-descr">
1077
1078 <p> Answers to common questions can be found in the following topic areas:
1079
1080 <dl>
1081 <dt><a href="general.html">General questions about Google App Engine</a></dt>
1082 <dd>Overview questions about developing Google App Engine Apps</dd>
1083 <dt><a href="commontasks.html">Common Tasks and How To Do Them in Python</a></dt>
1084 <dd>Covers how to accomplish frequently performed tasks while writing an Google App Engine Application using the Python runtime.</dd>
1085 <dt><a href="java.html">Google App Engine for Java Questions</a></dt>
1086 <dd>Covers capabilities, behavior, and performance of the Java runtime for Google App Engine.</dd>
1087 <dt><a href="adminconsole.html">Administration Console Questions</a></dt>
1088 <dd>Covers features found in Google App Engine Administration Console.</dd>
1089 <dt><a href="sms.html">SMS Verification for App Creation</a></dt>
1090 <dd>Covers questions related to the SMS verification, which is required when creating your first App Engine app</dd>
1091 <dt><a href="status.html">App Engine System Status Dashboard</a></dt>
1092 <dd>Covers questions related to the App Engine <a href="http://code.google.com/status/appengine/">system status dashboard</a></dd>
1093 <dt><a href="billing.html">Questions relating to Billing</a></dt>
1094 <dd>Overview questions relating to billing and Google Checkout, billing, and billable quota.</dd>
1095 <dt><a href="unappliedwrites.html">Unapplied Writes</a></dt>
1096 <dd>Overview questions regarding unapplied writes in the datastore.</dd>
1097 </dl>
1098 </dl>
1099 </div>
1100 </div>
1101
1102
1103       </div><!-- end gc-pagecontent -->
1104    </div><!-- end gooey wrapper -->
1105
1106     </div> <!-- end codesite content -->
1107
1108
1109 <div id="gc-footer" dir="ltr">
1110   <div class="text">
1111
1112       <div class="notice"><div id="notice" style="text-align: center; border: 1em 0em 1em 0em">
1113   Except as otherwise <a
1114   href="http://code.google.com/policies.html#restrictions">noted</a>,
1115   the content of this page is licensed under the <a rel="license"
1116   href="http://creativecommons.org/licenses/by/3.0/">Creative Commons
1117   Attribution 3.0 License</a>, and code samples are licensed under the
1118   <a rel="license" href="http://www.apache.org/licenses/LICENSE-2.0">Apache
1119   2.0 License</a>.
1120 <!-- <rdf:RDF xmlns="http://web.resource.org/cc/"
1121               xmlns:dc="http://purl.org/dc/elements/1.1/"
1122               xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
1123   <Work rdf:about="">
1124     <license rdf:resource="http://creativecommons.org/licenses/by/3.0/" />
1125   </Work>
1126   <License rdf:about="http://creativecommons.org/licenses/by/3.0/">
1127     <permits rdf:resource="http://web.resource.org/cc/Reproduction"/>
1128     <permits rdf:resource="http://web.resource.org/cc/Distribution"/>
1129     <requires rdf:resource="http://web.resource.org/cc/Notice"/>
1130     <requires rdf:resource="http://web.resource.org/cc/Attribution"/>
1131     <permits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/>
1132   </License>
1133 </rdf:RDF> -->
1134 </div>
1135 Java is a registered trademark of Oracle Corporation and/or its affiliates</div>
1136
1137     ©2011 Google -
1138     <a href="http://code.google.com">Code Home</a> -
1139     <a href="http://code.google.com/terms.html">Site Terms of Service</a> -
1140     <a href="http://code.google.com/privacy.html">Privacy Policy</a> -
1141     <a href="http://code.google.com/more">Site Directory</a>
1142     <br> <br>
1143     Google Code offered in:
1144     <a href="http://code.google.com/intl/en">English</a> -
1145     <a href="http://code.google.com/intl/es">Español</a> -
1146     <a href="http://code.google.com/intl/ja">日本語</a> -
1147     <a href="http://code.google.com/intl/ko">한국어</a> -
1148     <a href="http://code.google.com/intl/pt-BR">Português</a> -
1149     <a href="http://code.google.com/intl/ru">Pусский</a> -
1150     <a href="http://code.google.com/intl/zh-CN">中文(简体)</a> -
1151     <a href="http://code.google.com/intl/zh-TW">中文(繁體)</a>
1152   </div>
1153 </div><!-- end gc-footer -->
1154
1155 </div><!-- end gc-container -->
1156
1157 <script type="text/javascript">CODESITE_CSITimer['load'].tick('ats');</script>
1158 <script src="../../js/codesite_tail.pack.04102009.js" type="text/javascript"></script>
1159 <script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script>
1160
1161
1162
1163
1164
1165   </body>
1166 </html>
1167