/*
* Copyright 2010 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.core.reteoo;
import org.drools.core.common.DefaultFactHandle;
import org.drools.core.common.InternalFactHandle;
import org.drools.core.common.InternalWorkingMemory;
import org.drools.core.common.RuleBasePartitionId;
import org.drools.core.spi.PropagationContext;
public class ModifyPreviousTuples {
private final DefaultFactHandle.LinkedTuples linkedTuples;
public ModifyPreviousTuples(InternalFactHandle.LinkedTuples linkedTuples) {
this.linkedTuples = linkedTuples;
}
public LeftTuple peekLeftTuple(int partition) {
return linkedTuples.getFirstLeftTuple(partition);
}
public LeftTuple peekLeftTuple(RuleBasePartitionId partitionId) {
return linkedTuples.getFirstLeftTuple(partitionId);
}
public RightTuple peekRightTuple(int partition) {
return linkedTuples.getFirstRightTuple(partition);
}
public RightTuple peekRightTuple(RuleBasePartitionId partitionId) {
return linkedTuples.getFirstRightTuple(partitionId);
}
public void removeLeftTuple(int partition) {
linkedTuples.removeLeftTuple( peekLeftTuple(partition) );
}
public void removeLeftTuple(RuleBasePartitionId partitionId) {
linkedTuples.removeLeftTuple( peekLeftTuple(partitionId) );
}
public void removeRightTuple(int partition) {
linkedTuples.removeRightTuple( peekRightTuple(partition) );
}
public void removeRightTuple(RuleBasePartitionId partitionId) {
linkedTuples.removeRightTuple( peekRightTuple(partitionId) );
}
public void retractTuples(PropagationContext pctx,
InternalWorkingMemory wm) {
linkedTuples.forEachLeftTuple( lt -> doDeleteObject(pctx, wm, lt) );
linkedTuples.forEachRightTuple( rt -> doRightDelete(pctx, wm, rt) );
}
public void doDeleteObject(PropagationContext pctx, InternalWorkingMemory wm, LeftTuple leftTuple) {
LeftInputAdapterNode liaNode = leftTuple.getTupleSource();
LeftInputAdapterNode.LiaNodeMemory lm = wm.getNodeMemory( liaNode );
LeftInputAdapterNode.doDeleteObject(leftTuple, pctx, lm.getSegmentMemory(), wm, liaNode, true, lm);
}
public void doRightDelete(PropagationContext pctx, InternalWorkingMemory wm, RightTuple rightTuple) {
rightTuple.setPropagationContext( pctx );
rightTuple.retractTuple( pctx, wm );
}
}