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Java > Open Source Codes > org > apache > hivemind > schema > rules > InstanceTranslator


1 // Copyright 2004, 2005 The Apache Software Foundation
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.apache.hivemind.schema.rules;
16
17 import org.apache.hivemind.HiveMind;
18 import org.apache.hivemind.Location;
19 import org.apache.hivemind.internal.Module;
20 import org.apache.hivemind.schema.Translator;
21 import org.apache.hivemind.util.InstanceCreationUtils;
22
23 /**
24  * Used to translate from a class name to an instance of the class.
25  *
26  * @author Howard Lewis Ship
27  */
28 public class InstanceTranslator implements Translator
29 {
30     public Object JavaDoc translate(Module contributingModule, Class JavaDoc propertyType, String JavaDoc inputValue,
31             Location location)
32     {
33         if (HiveMind.isBlank(inputValue))
34             return null;
35
36         return InstanceCreationUtils.createInstance(contributingModule, inputValue, location);
37     }
38
39 }
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