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/*
* Licensed Materials - Property of IBM,
* WebSphere Studio Workbench
* (c) Copyright IBM Corp 2001
*/
package org.eclipse.compare.structuremergeviewer;
/**
* Listener that gets informed if one (or more)
* of the three sides of an <code>ICompareInput</code> object changes its value.
* <p>
* For example when accepting an incoming addition
* the (non-null) left side of an <code>ICompareInput</code>
* is copied to the right side (which was <code>null</code>).
* This triggers a call to <code>compareInputChanged</code> of registered
* <code>ICompareInputChangeListener</code>.
* <p>
* Note however, that listener are not informed if the content of one of the sides changes.
* <p>
* Clients may implement this interface. It is also implemented by viewers that take
* an <code>ICompareInput</code> as input.
* </p>
*/
public interface ICompareInputChangeListener {
/**
* Called whenever the value (not the content) of one or more of the three sides
* of a <code>ICompareInput</code> has changed.
*
* @param source the <code>ICompareInput</code> that has changed
*/
void compareInputChanged(ICompareInput source);
}
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