/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* 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 University of Luebeck 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER OR 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 lupos.engine.operators.stream;
import lupos.datastructures.items.Triple;
import lupos.engine.operators.BasicOperator;
import lupos.engine.operators.OperatorIDTuple;
import lupos.engine.operators.tripleoperator.TripleConsumer;
import lupos.engine.operators.tripleoperator.TripleOperator;
import lupos.engine.operators.tripleoperator.patternmatcher.PatternMatcher;
import lupos.misc.debug.DebugStep;
public abstract class Window extends TripleOperator implements TripleDeleter {
public PatternMatcher getPatternMatcher() {
if (this.getSucceedingOperators().size() == 1) {
final BasicOperator bo = this.getSucceedingOperators().get(0)
.getOperator();
if (bo instanceof PatternMatcher)
return (PatternMatcher) bo;
}
System.out.println("Error in Window-Operator!");
return null;
}
@Override
public void consume(final Triple triple) {
for (final OperatorIDTuple oid : this.getSucceedingOperators()) {
((TripleConsumer) oid.getOperator()).consume(triple);
}
}
@Override
public void deleteTriple(final Triple triple) {
for (final OperatorIDTuple oid : this.succeedingOperators) {
((TripleDeleter) oid.getOperator()).deleteTriple(triple);
}
}
@Override
public void consumeDebug(final Triple triple, final DebugStep debugstep) {
for (final OperatorIDTuple oid : this.getSucceedingOperators()) {
debugstep.step(this, oid.getOperator(), triple);
((TripleOperator) oid.getOperator()).consume(triple);
}
}
@Override
public void deleteTripleDebug(final Triple triple, final DebugStep debugstep) {
for (final OperatorIDTuple oid : this.succeedingOperators) {
debugstep.stepDelete(this, oid.getOperator(), triple);
((TripleDeleter) oid.getOperator()).deleteTripleDebug(triple,
debugstep);
}
}
}