src/web/org/codehaus/groovy/grails/web/sitemesh/FactoryHolder.java

   1 /* Copyright 2006-2007 Graeme Rocher
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *      http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 package org.codehaus.groovy.grails.web.sitemesh;
  16
  17 import com.opensymphony.module.sitemesh.Factory;
  18
  19 /**
  20  * A class that holds a reference to the Sitemesh Factory object
  21  *
  22  * @author Graeme Rocher
  23  * @since 0.6
  24  *        <p/>
  25  *        Created: Jul 24, 2007
  26  *        Time: 5:05:25 PM
  27  */
  28 public class FactoryHolder {
  29     private FactoryHolder() {}
  30
  31     private static Factory factory;
  32
  33     public static Factory getFactory() {
  34         if(factory == null) throw new IllegalStateException("Cannot return Sitemesh factory it has not been set!");
  35         return factory;
  36     }
  37
  38     public static void setFactory(Factory newFactory) {
  39         synchronized(FactoryHolder.class) {
  40            factory = newFactory;
  41         }
  42     }
  43 }