/**
* Copyright (c) 1999-2014, Ecole des Mines de Nantes
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Ecole des Mines de Nantes nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package solver.variables.view;
import gnu.trove.list.array.TIntArrayList;
import solver.ICause;
import solver.exception.ContradictionException;
import solver.variables.delta.IIntDeltaMonitor;
import util.procedure.IntProcedure;
import util.procedure.SafeIntProcedure;
/**
* A delta monitor dedicated to views
* <br/>
*
* @author Charles Prud'homme
* @since 11/01/13
*/
public abstract class ViewDeltaMonitor implements IIntDeltaMonitor {
private class Filler implements SafeIntProcedure {
@Override
public void execute(int i) {
values.add(i);
}
}
IIntDeltaMonitor deltamonitor;
protected ICause propagator;
protected TIntArrayList values;
protected Filler filler;
public ViewDeltaMonitor(IIntDeltaMonitor deltamonitor, ICause propagator) {
this.deltamonitor = deltamonitor;
this.propagator = propagator;
values = new TIntArrayList(8);
filler = new Filler();
}
@Override
public void freeze() {
this.deltamonitor.freeze();
}
@Override
public void unfreeze() {
this.deltamonitor.unfreeze();
}
@Override
public void forEachRemVal(SafeIntProcedure proc) {
values.clear();
deltamonitor.forEachRemVal(filler);
for (int v = 0; v < values.size(); v++) {
proc.execute(transform(values.toArray()[v]));
}
}
@Override
public void forEachRemVal(IntProcedure proc) throws ContradictionException {
values.clear();
deltamonitor.forEachRemVal(filler);
for (int v = 0; v < values.size(); v++) {
proc.execute(transform(values.toArray()[v]));
}
}
protected abstract int transform(int value);
}