uk.org.retep.util.reflect.Invocation Maven / Gradle / Ivy
/*
* Copyright (c) 1998-2008, Peter T Mount
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the retep.org.uk nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package uk.org.retep.util.reflect;
import java.lang.reflect.Method;
/**
* An object representing some invocation of a method on an instance of a Bean.
*
* @author peter
* @since 9.2
* @see InvocationList
*/
public class Invocation
implements Invoke
{
private final Object bean;
private final Method method;
/**
* Constructor
* @param bean Instance to invoke
* @param method Method to invoke
*/
public Invocation( final Object bean, final Method method )
{
this.bean = bean;
this.method = method;
}
/**
* Constructor
* @param bean Instance to invoke
* @param method Method name
* @param parameterTypes Parameter types of the method
* @throws java.lang.NoSuchMethodException if the method is not present
*/
public Invocation( final Object bean,
final String method,
final Class... parameterTypes )
throws NoSuchMethodException
{
this( bean,
bean.getClass().getMethod( method, parameterTypes ) );
}
/**
* Invoke the method
* @param args Arguments of the method, must match those of the method
* @return The method's return value (if any)
* @throws java.lang.Exception
*/
public Object invoke( final Object... args )
throws Exception
{
return method.invoke( bean, args );
}
}