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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
EngineServiceOuterProxy.java | - | 100% | 100% | 100% |
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// Copyright 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.services.impl;
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import java.io.IOException;
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import org.apache.hivemind.util.Defense;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.engine.IEngineService;
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import org.apache.tapestry.engine.ILink;
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/**
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* Outer proxy for engine services. The inner proxy resolves the engine service name to a engine
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* service implementation and installed it into the outer proxy as a delegate. Although HiveMind
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* does provide a similar system of inner and outer delegates, Tapestry's engine-service:
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* {@link org.apache.tapestry.services.impl.EngineServiceObjectProvider} object provider can
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* cause exceptions (recurive service build) when attempting to link two services together. This
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* extra layer of proxying resolves that issue.
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*
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* @author Howard M. Lewis Ship
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* @since 4.0
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*/
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public class EngineServiceOuterProxy implements IEngineService |
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{ |
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private final String _serviceName;
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private IEngineService _delegate;
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public EngineServiceOuterProxy(String serviceName)
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{ |
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Defense.notNull(serviceName, "serviceName");
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_serviceName = serviceName; |
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} |
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void installDelegate(IEngineService delegate)
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{ |
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_delegate = delegate; |
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} |
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IEngineService getDelegate() |
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{ |
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return _delegate;
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} |
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public ILink getLink(IRequestCycle cycle, Object parameter)
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{ |
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return _delegate.getLink(cycle, parameter);
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} |
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public void service(IRequestCycle cycle) throws IOException |
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{ |
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_delegate.service(cycle); |
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} |
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public String getName()
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{ |
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return _serviceName;
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} |
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public String toString()
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{ |
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return ImplMessages.engineServiceOuterProxyToString(_serviceName);
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} |
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} |
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