Mega Code Archive
Call a member function to get the value
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// $Id: ReflectionHelper.java 16271 2009-04-07 20:20:12Z hardy.ferentschik $
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* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.beans.Introspector;
import java.lang.annotation.Annotation;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.WildcardType;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* Some reflection utility methods.
*
* @author Hardy Ferentschik
*/
public class ReflectionHelper {
public static Object getValue(Member member, Object object) {
Object value = null;
if ( member instanceof Method ) {
Method method = ( Method ) member;
try {
value = method.invoke( object );
}
catch ( IllegalAccessException e ) {
throw new RuntimeException( "Unable to access " + method.getName(), e );
}
catch ( InvocationTargetException e ) {
throw new RuntimeException( "Unable to access " + method.getName(), e );
}
}
else if ( member instanceof Field ) {
Field field = ( Field ) member;
try {
value = field.get( object );
}
catch ( IllegalAccessException e ) {
throw new RuntimeException( "Unable to access " + field.getName(), e );
}
}
return value;
}
}
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