/*
* 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 java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import org.drools.core.base.accumulators.JavaAccumulatorFunctionExecutor.JavaAccumulatorFunctionContext;
import org.drools.core.common.InternalFactHandle;
import org.drools.core.spi.PropagationContext;
public class FromNodeLeftTuple extends BaseLeftTuple {
private static final long serialVersionUID = 540l;
public FromNodeLeftTuple() {
// constructor needed for serialisation
}
// ------------------------------------------------------------
// Constructors
// ------------------------------------------------------------
public FromNodeLeftTuple(final InternalFactHandle factHandle,
Sink sink,
boolean leftTupleMemoryEnabled) {
super( factHandle, sink, leftTupleMemoryEnabled );
}
public FromNodeLeftTuple(final InternalFactHandle factHandle,
final LeftTuple leftTuple,
final Sink sink) {
super( factHandle, leftTuple, sink );
}
public FromNodeLeftTuple(final LeftTuple leftTuple,
final Sink sink,
final PropagationContext pctx,
final boolean leftTupleMemoryEnabled) {
super( leftTuple, sink, pctx, leftTupleMemoryEnabled );
}
public FromNodeLeftTuple(final LeftTuple leftTuple,
RightTuple rightTuple,
Sink sink) {
super( leftTuple, rightTuple, sink );
}
public FromNodeLeftTuple(final LeftTuple leftTuple,
final RightTuple rightTuple,
final Sink sink,
final boolean leftTupleMemoryEnabled) {
this( leftTuple,
rightTuple,
null,
null,
sink,
leftTupleMemoryEnabled );
}
public FromNodeLeftTuple(final LeftTuple leftTuple,
final RightTuple rightTuple,
final LeftTuple currentLeftChild,
final LeftTuple currentRightChild,
final Sink sink,
final boolean leftTupleMemoryEnabled) {
super( leftTuple,
rightTuple,
currentLeftChild,
currentRightChild,
sink,
leftTupleMemoryEnabled );
}
@Override
public Collection<Object> getAccumulatedObjects() {
if (getContextObject() instanceof ContextOwner) {
Collection<Object> result = new ArrayList<>();
JavaAccumulatorFunctionContext accContext = ( (ContextOwner) getContextObject() ).getContext( JavaAccumulatorFunctionContext.class );
if (accContext != null) {
result.addAll( accContext.getAccumulatedObjects() );
}
if (getFirstChild() != null && getFirstChild().getRightParent() instanceof SubnetworkTuple) {
LeftTuple leftParent = ( (SubnetworkTuple) getFirstChild().getRightParent() ).getLeftParent();
result.addAll( leftParent.getAccumulatedObjects() );
}
return result;
}
return Collections.emptyList();
}
}