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1   /*
2    * Copyright 2004-2006 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  package org.seasar.tuigwaa.database.function;
17  
18  import org.apache.commons.logging.Log;
19  import org.apache.commons.logging.LogFactory;
20  import org.hibernate.ObjectDeletedException;
21  import org.hibernate.ObjectNotFoundException;
22  import org.seasar.tuigwaa.model.common.EntityUtils;
23  
24  import com.isenshi.util.functor.UnaryFunction;
25  
26  public class DeleteExeFunction extends AbstractExeFunction implements
27  		UnaryFunction {
28  
29  	private Log log = LogFactory.getLog(getClass());
30  	
31  	public Object evaluate(Object obj) {
32  		Object instance = null;
33  		try {
34  			Long id = (Long) obj;
35  			instance = getSession().load(getJavaClass(), id);
36  
37  			// Object instance = getEntity().newInstance();
38  			// EntityUtils.setId(instance, id);
39  
40  			EntityUtils.removeSelfObjectTree(instance, getEntity(), null);
41  
42  			getSession().delete(instance);
43  		} catch (ObjectNotFoundException e) {
44  			log.info("object " + obj + " is already deleted ." + e);
45  		} catch (ObjectDeletedException e) {
46  			log.info("object " + instance + " deleted exception." + e);
47  		}
48  		return null;
49  	}
50  
51  }