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/*******************************************************************************
* Copyright (c) 2006, 2017 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.core.diff;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.team.core.diff.provider.Diff;
/**
* A specialized <code>DiffNodeFilter</code> that does not require a progress monitor.
* This enables these filters to be used when determining menu enablement or other
* operations that must be short running.
*
* @see IDiff
* @see IDiffTree
* @see DiffFilter
* @since 3.2
*/
public abstract class FastDiffFilter extends DiffFilter {
public static final FastDiffFilter getStateFilter(final int[] states, final int mask) {
return new FastDiffFilter() {
@Override
public boolean select(IDiff node) {
int status = ((Diff)node).getStatus();
for (int i = 0; i < states.length; i++) {
int state = states[i];
if ((status & mask) == state) {
return true;
}
}
return false;
}
};
}
@Override
public final boolean select(IDiff diff, IProgressMonitor monitor) {
return select(diff);
}
/**
* Return <code>true</code> if the provided <code>IDiffNode</code> matches the filter.
*
* @param diff the <code>IDiffNode</code> to be tested
* @return <code>true</code> if the <code>IDiffNode</code> matches the filter
*/
public abstract boolean select(IDiff diff);
}
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