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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.util.functor;
17  
18  import com.isenshi.util.functor.UnaryFunction;
19  
20  public class StringBooleanFunction implements UnaryFunction {
21  
22  	private String trueStr;
23  
24  	private String falseStr;
25  
26  	public StringBooleanFunction(String trueStr, String falseStr) {
27  		this.trueStr = trueStr;
28  		this.falseStr = falseStr;
29  	}
30  
31  	public Object evaluate(Object obj) {
32  		Boolean bool = (Boolean) obj;
33  		if (bool == null) {
34  			return "";
35  		}
36  
37  		if (bool.booleanValue()) {
38  			return trueStr;
39  		} else {
40  			return falseStr;
41  		}
42  	}
43  
44  }