java/src/main/com/google/appengine/api/datastore/BasePreparedQuery.java

   1 // Copyright 2009 Google Inc. All rights reserved.
   2
   3 package com.google.appengine.api.datastore;
   4
   5 import static com.google.appengine.api.datastore.FetchOptions.Builder.withDefaults;
   6
   7 import java.util.Iterator;
   8
   9 /**
  10  * A base implementations for a PreparedQuery.
  11  *
  12  * <p>This class forwards all calls to {@link PreparedQuery#
  13  * asIterator(FetchOptions)}/{@link PreparedQuery#
  14  * asQueryResultIterator(FetchOptions)} and {@link PreparedQuery
  15  * #asList(FetchOptions)}/{@link PreparedQuery#asQueryResultList(FetchOptions)}
  16  * which need to be implemented in a sub class.
  17  *
  18  */
  19 abstract class BasePreparedQuery implements PreparedQuery {
  20   @Override
  21   public Iterable<Entity> asIterable(final FetchOptions fetchOptions) {
  22     return new Iterable<Entity>() {
  23       @Override
  24       public Iterator<Entity> iterator() {
  25         return asIterator(fetchOptions);
  26       }
  27     };
  28   }
  29
  30   @Override
  31   public Iterable<Entity> asIterable() {
  32     return asIterable(withDefaults());
  33   }
  34
  35   @Override
  36   public Iterator<Entity> asIterator() {
  37     return asIterator(withDefaults());
  38   }
  39
  40   @Override
  41   public QueryResultIterable<Entity> asQueryResultIterable(final FetchOptions fetchOptions) {
  42     return new QueryResultIterable<Entity>() {
  43       @Override
  44       public QueryResultIterator<Entity> iterator() {
  45         return asQueryResultIterator(fetchOptions);
  46       }
  47     };
  48   }
  49
  50   @Override
  51   public QueryResultIterable<Entity> asQueryResultIterable() {
  52     return asQueryResultIterable(withDefaults());
  53   }
  54
  55   @Override
  56   public QueryResultIterator<Entity> asQueryResultIterator() {
  57     return asQueryResultIterator(withDefaults());
  58   }
  59
  60   @Deprecated
  61   @Override
  62   public int countEntities() {
  63     return countEntities(withDefaults().limit(1000));
  64   }
  65 }