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/*******************************************************************************
* Copyright (c) 2004-2008 Gabor Bergmann and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package tools.refinery.viatra.runtime.rete.single;
import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
import tools.refinery.viatra.runtime.rete.network.ReteContainer;
public class EqualityFilterNode extends FilterNode {
int[] indices;
int first;
/**
* @param reteContainer
* @param indices
* indices of the Tuple that should hold equal values
*/
public EqualityFilterNode(ReteContainer reteContainer, int[] indices) {
super(reteContainer);
this.indices = indices;
first = indices[0];
}
@Override
public boolean check(Tuple ps) {
Object firstElement = ps.get(first);
for (int i = 1 /* first is omitted */; i < indices.length; i++) {
if (!ps.get(indices[i]).equals(firstElement))
return false;
}
return true;
}
}
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