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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
CyclicDependencyGuard.java | - | - | - | - |
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/*
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* Copyright (C) 2004 Joerg Schaible
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* Created on 07.09.2004 by joehni
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*/
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package org.picocontainer.defaults;
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/**
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* TODO Auto-generated JavaDoc
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*
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* @author joehni
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* @since 1.1
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*/
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public interface CyclicDependencyGuard { |
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/**
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* Derive from this class and implement this function with the functionality
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* to observe for a dependency cycle.
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*
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* @return a value, if the functionality result in an expression,
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* otherwise just return <code>null</code>
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*/
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public Object run();
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/**
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* Call the observing function. The provided guard will hold the {@link Boolean} value.
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* If the guard is already <code>Boolean.TRUE</code> a {@link CyclicDependencyException}
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* will be thrown.
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*
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* @param stackFrame the current stack frame
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* @return the result of the <code>run</code> method
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*/
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public Object observe(Class stackFrame);
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} |
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