| /* |
| * Copyright (c) 2008, Rickard Öberg. All Rights Reserved. |
| * |
| * 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. |
| * |
| */ |
| |
| package org.apache.zest.runtime.composite; |
| |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.Method; |
| |
| /** |
| * JAVADOC |
| */ |
| public final class CompositeMethodInstance |
| { |
| private final InvocationHandler invoker; |
| private final FragmentInvocationHandler mixinInvoker; |
| private final Method method; |
| private final int methodIdx; |
| |
| private CompositeMethodInstance next; |
| |
| public CompositeMethodInstance( InvocationHandler invoker, |
| FragmentInvocationHandler mixinInvoker, |
| Method method, int methodIdx |
| ) |
| { |
| this.invoker = invoker; |
| this.method = method; |
| this.mixinInvoker = mixinInvoker; |
| this.methodIdx = methodIdx; |
| } |
| |
| public Method method() |
| { |
| return method; |
| } |
| |
| public Object getMixinFrom( Object[] mixins ) |
| { |
| return mixins[ methodIdx ]; |
| } |
| |
| public Object invoke( Object composite, Object[] params, Object mixin ) |
| throws Throwable |
| { |
| mixinInvoker.setFragment( mixin ); |
| |
| try |
| { |
| return invoker.invoke( composite, method, params ); |
| } |
| finally |
| { |
| mixinInvoker.setFragment( null ); |
| } |
| } |
| |
| public CompositeMethodInstance getNext() |
| { |
| return next; |
| } |
| |
| public void setNext( CompositeMethodInstance next ) |
| { |
| this.next = next; |
| } |
| } |