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org.drools.core.common.DefaultFactHandle Maven / Gradle / Ivy
/*
* Copyright 2005 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.common;
import java.util.Objects;
import java.util.function.Consumer;
import java.util.function.Predicate;
import java.util.stream.Stream;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import org.drools.core.WorkingMemoryEntryPoint;
import org.drools.core.base.TraitHelper;
import org.drools.core.datasources.InternalDataSource;
import org.drools.core.factmodel.traits.TraitFactory;
import org.drools.core.factmodel.traits.TraitTypeEnum;
import org.drools.core.impl.InternalKnowledgeBase;
import org.drools.core.reteoo.LeftTuple;
import org.drools.core.reteoo.ObjectTypeNode;
import org.drools.core.reteoo.RightTuple;
import org.drools.core.spi.Tuple;
import org.drools.core.util.AbstractBaseLinkedListNode;
import org.drools.core.util.StringUtils;
import org.kie.api.runtime.rule.FactHandle;
/**
* Implementation of FactHandle.
*/
@XmlRootElement(name = "fact-handle")
@XmlAccessorType(XmlAccessType.NONE)
public class DefaultFactHandle extends AbstractBaseLinkedListNode
implements
InternalFactHandle {
// ----------------------------------------------------------------------
// Instance members
// ----------------------------------------------------------------------
private static final long serialVersionUID = 510l;
/** Handle id. */
static final String FACT_FORMAT_VERSION = "0";
private int id;
private long recency;
private Object object;
private EqualityKey key;
private int objectHashCode;
private int identityHashCode;
private WorkingMemoryEntryPoint entryPoint;
private boolean disconnected;
private TraitTypeEnum traitType;
private boolean valid = true;
private boolean negated;
private String objectClassName;
protected LinkedTuples linkedTuples;
private InternalFactHandle parentHandle;
// ----------------------------------------------------------------------
// Constructors
// ----------------------------------------------------------------------
public DefaultFactHandle() {
}
public DefaultFactHandle(final int id,
final Object object) {
// this is only used by tests, left as legacy as so many test rely on it.
this( id,
object,
id,
null,
false);
}
/**
* Construct.
*
* @param id
* Handle id.
*/
public DefaultFactHandle(final int id,
final Object object,
final long recency,
final WorkingMemoryEntryPoint wmEntryPoint) {
this( id, determineIdentityHashCode( object ), object, recency, wmEntryPoint, false );
}
public DefaultFactHandle(final int id,
final Object object,
final long recency,
final WorkingMemoryEntryPoint wmEntryPoint,
final boolean isTraitOrTraitable ) {
this( id, determineIdentityHashCode( object ), object, recency, wmEntryPoint, isTraitOrTraitable );
}
public DefaultFactHandle(final int id,
final int identityHashCode,
final Object object,
final long recency,
final WorkingMemoryEntryPoint wmEntryPoint,
final boolean isTraitOrTraitable ) {
this.id = id;
setEntryPoint( wmEntryPoint );
this.recency = recency;
setObject( object );
this.identityHashCode = identityHashCode;
this.traitType = isTraitOrTraitable ? determineTraitType() : TraitTypeEnum.NON_TRAIT;
}
public DefaultFactHandle(int id,
String wmEntryPointId,
int identityHashCode,
int objectHashCode,
long recency,
Object object) {
this.id = id;
setEntryPoint( ( wmEntryPointId == null ) ? null : new DisconnectedWorkingMemoryEntryPoint( wmEntryPointId ) );
this.recency = recency;
setObject( object );
this.identityHashCode = identityHashCode;
this.objectHashCode = objectHashCode;
this.disconnected = true;
this.traitType = TraitTypeEnum.NON_TRAIT;
}
// ----------------------------------------------------------------------
// Instance members
// ----------------------------------------------------------------------
/**
* @see Object
*/
public boolean equals( final Object object ) {
return this == object || ( object instanceof DefaultFactHandle && this.id == ( (DefaultFactHandle) object ).id );
}
public void disconnect() {
this.key = null;
this.linkedTuples = null;
this.entryPoint = ( this.entryPoint == null ) ?
null :
new DisconnectedWorkingMemoryEntryPoint( this.entryPoint.getEntryPointId() );
this.disconnected = true;
}
public boolean isNegated() {
return negated;
}
public void setNegated(boolean negated) {
this.negated = negated;
}
@Override
public K as( Class klass ) throws ClassCastException {
if ( klass.isAssignableFrom( object.getClass() ) ) {
return (K) object;
} else if ( this.isTraitOrTraitable() ) {
K k = TraitHelper.extractTrait( this, klass );
if ( k != null ) {
return k;
}
}
throw new ClassCastException( "The Handle's Object can't be cast to " + klass );
}
public boolean isDisconnected() {
return disconnected;
}
protected void setDisconnected( boolean disconnected ) {
this.disconnected = disconnected;
}
public int getObjectHashCode() {
return this.objectHashCode;
}
public int getIdentityHashCode() {
return this.identityHashCode;
}
public static int determineIdentityHashCode( Object object ) {
return System.identityHashCode( object );
}
protected void setIdentityHashCode( int identityHashCode ) {
this.identityHashCode = identityHashCode;
}
protected void setObjectHashCode( int hashCode ) {
this.objectHashCode = hashCode;
}
/**
* @see Object
*/
public int hashCode() {
return this.id;
}
/**
* format_version:id:identity:hashcode:recency
*
* @see FactHandle
*/
public final String toExternalForm() {
return getFormatVersion() + ":" + this.id +
":" +
getIdentityHashCode() +
":" +
getObjectHashCode() +
":" +
getRecency() +
":" +
( ( this.entryPoint != null ) ? this.entryPoint.getEntryPointId() : "null" ) +
":" +
this.traitType.name() +
":" +
this.objectClassName;
}
protected String getFormatVersion() {
return FACT_FORMAT_VERSION;
}
@XmlAttribute(name = "external-form")
public String getExternalForm() {
return toExternalForm();
}
public void setExternalForm(String externalForm) {
populateFactHandleFromExternalForm( externalForm, this );
}
/**
* @see Object
*/
public String toString() {
return "[fact " + toExternalForm() + ":" + this.object + "]";
}
public long getRecency() {
return this.recency;
}
public void setRecency( final long recency ) {
this.recency = recency;
}
public int getId() {
return this.id;
}
public void invalidate() {
valid = false;
}
public boolean isValid() {
return valid;
}
public Object getObject() {
return this.object;
}
public String getObjectClassName() {
return this.objectClassName;
}
public void setObject( final Object object ) {
this.object = object;
if (object != null) {
this.objectClassName = object.getClass().getName();
this.objectHashCode = object.hashCode();
} else {
this.objectHashCode = 0;
}
if ( isTraitOrTraitable() ) {
TraitTypeEnum newType = determineTraitType();
if ( ! ( this.traitType == TraitTypeEnum.LEGACY_TRAITABLE && newType != TraitTypeEnum.LEGACY_TRAITABLE ) ) {
this.identityHashCode = determineIdentityHashCode( object );
} else {
// we are replacing a non-traitable object with its proxy, so we need to preserve the identity hashcode
}
this.traitType = newType;
} else {
this.identityHashCode = determineIdentityHashCode( object );
}
}
/**
* @return the key
*/
public EqualityKey getEqualityKey() {
return this.key;
}
/**
* @param key the key to set
*/
public void setEqualityKey( final EqualityKey key ) {
this.key = key;
}
/**
* Always returns false, since the DefaultFactHandle is
* only used for regular Facts, and not for Events
*/
public boolean isEvent() {
return false;
}
public boolean isTraitOrTraitable() {
return traitType != TraitTypeEnum.NON_TRAIT;
}
public WorkingMemoryEntryPoint getEntryPoint() {
return entryPoint;
}
public void setEntryPoint( WorkingMemoryEntryPoint sourceNode ) {
this.entryPoint = sourceNode;
setLinkedTuples( entryPoint != null ? entryPoint.getKnowledgeBase() : null );
}
private void setLinkedTuples( InternalKnowledgeBase kbase ) {
linkedTuples = kbase != null && kbase.getConfiguration().isMultithreadEvaluation() ?
new CompositeLinkedTuples() :
new SingleLinkedTuples();
}
public void addFirstLeftTuple( LeftTuple leftTuple ) {
linkedTuples.addFirstLeftTuple( leftTuple );
}
public void addLastLeftTuple( LeftTuple leftTuple ) {
linkedTuples.addLastLeftTuple( leftTuple );
}
public void addTupleInPosition( Tuple tuple ) {
linkedTuples.addTupleInPosition( tuple );
}
public void removeLeftTuple( LeftTuple leftTuple ) {
linkedTuples.removeLeftTuple( leftTuple );
}
public void addFirstRightTuple( RightTuple rightTuple ) {
linkedTuples.addFirstRightTuple( rightTuple );
}
public void addLastRightTuple( RightTuple rightTuple ) {
linkedTuples.addLastRightTuple( rightTuple );
}
public void removeRightTuple( RightTuple rightTuple ) {
linkedTuples.removeRightTuple( rightTuple );
}
public void clearLeftTuples() {
linkedTuples.clearLeftTuples();
}
public void clearRightTuples() {
linkedTuples.clearRightTuples();
}
public DefaultFactHandle clone() {
DefaultFactHandle clone = new DefaultFactHandle( this.id, this.object, this.recency, this.entryPoint );
clone.key = this.key;
clone.linkedTuples = this.linkedTuples.clone();
clone.objectHashCode = this.objectHashCode;
clone.identityHashCode = System.identityHashCode( clone.object );
clone.disconnected = this.disconnected;
clone.traitType = this.traitType;
clone.negated = this.negated;
return clone;
}
public static DefaultFactHandle createFromExternalFormat( String externalFormat ) {
String[] elements = splitExternalForm( externalFormat );
DefaultFactHandle handle;
if (FACT_FORMAT_VERSION.equals( elements[0]) ) {
handle = new DefaultFactHandle();
} else if (EventFactHandle.EVENT_FORMAT_VERSION.equals( elements[0])) {
handle = new EventFactHandle();
} else {
throw new RuntimeException( "Unknown fact handle version format: " + elements[0]);
}
populateFactHandleFromExternalForm( elements, handle );
return handle;
}
private static String[] splitExternalForm( String externalFormat ) {
String[] elements = externalFormat.split( ":" );
if (elements.length < 6) {
throw new IllegalArgumentException( "externalFormat did not have enough elements ["+externalFormat+"]" );
}
return elements;
}
private static void populateFactHandleFromExternalForm( String externalFormat, DefaultFactHandle handle ) {
populateFactHandleFromExternalForm( splitExternalForm( externalFormat ), handle );
}
private static void populateFactHandleFromExternalForm( String[] elements, DefaultFactHandle handle ) {
handle.id = Integer.parseInt( elements[1] );
handle.identityHashCode = Integer.parseInt( elements[2] );
handle.objectHashCode = Integer.parseInt( elements[3] );
handle.recency = Long.parseLong( elements[4] );
handle.setEntryPoint( ( StringUtils.isEmpty( elements[5] ) || "null".equals( elements[5].trim() ) ) ?
null :
new DisconnectedWorkingMemoryEntryPoint( elements[5].trim() ) );
handle.disconnected = true;
handle.traitType = elements.length > 6 ? TraitTypeEnum.valueOf( elements[6] ) : TraitTypeEnum.NON_TRAIT;
handle.objectClassName = elements.length > 7 ? elements[7] : null;
}
private TraitTypeEnum determineTraitType() {
if ( isTraitOrTraitable() ) {
return TraitFactory.determineTraitType( object );
} else {
return TraitTypeEnum.NON_TRAIT;
}
}
public boolean isTraitable() {
return traitType == TraitTypeEnum.TRAITABLE || traitType == TraitTypeEnum.WRAPPED_TRAITABLE;
}
public boolean isTraiting() {
return traitType == TraitTypeEnum.TRAIT;
}
public TraitTypeEnum getTraitType() {
return traitType;
}
protected void setTraitType( TraitTypeEnum traitType ) {
this.traitType = traitType;
}
public boolean isExpired() {
return false;
}
public boolean isPendingRemoveFromStore() {
return false;
}
protected static class SingleLinkedTuples implements LinkedTuples {
private RightTuple firstRightTuple;
private RightTuple lastRightTuple;
private LeftTuple firstLeftTuple;
private LeftTuple lastLeftTuple;
public SingleLinkedTuples clone() {
SingleLinkedTuples clone = new SingleLinkedTuples();
clone.firstLeftTuple = this.firstLeftTuple;
clone.lastLeftTuple = this.lastLeftTuple;
clone.firstRightTuple = this.firstRightTuple;
clone.lastRightTuple = this.lastRightTuple;
return clone;
}
public void addFirstLeftTuple( LeftTuple leftTuple ) {
LeftTuple previous = firstLeftTuple;
if ( previous == null ) {
// no other LeftTuples, just add.
leftTuple.setHandlePrevious( null );
leftTuple.setHandleNext( null );
firstLeftTuple = leftTuple;
lastLeftTuple = leftTuple;
} else {
leftTuple.setHandlePrevious( null );
leftTuple.setHandleNext( previous );
previous.setHandlePrevious( leftTuple );
firstLeftTuple = leftTuple;
}
}
public void addLastLeftTuple( LeftTuple leftTuple ) {
LeftTuple previous = lastLeftTuple;
if ( previous == null ) {
// no other LeftTuples, just add.
leftTuple.setHandlePrevious( null );
leftTuple.setHandleNext( null );
firstLeftTuple = leftTuple;
lastLeftTuple = leftTuple;
} else {
leftTuple.setHandlePrevious( previous );
leftTuple.setHandleNext( null );
previous.setHandleNext( leftTuple );
lastLeftTuple = leftTuple;
}
}
public void addTupleInPosition( Tuple tuple ) {
boolean left = tuple instanceof LeftTuple;
ObjectTypeNode.Id otnId = tuple.getInputOtnId();
if (otnId == null) { // can happen only in tests
addLastTuple( tuple, left );
return;
}
Tuple previous = left ? lastLeftTuple : lastRightTuple;
if ( previous == null ) {
// no other LeftTuples, just add.
tuple.setHandlePrevious( null );
tuple.setHandleNext( null );
setFirstTuple( tuple, left );
setLastTuple( tuple, left );
return;
} else if ( previous.getTupleSink() == null || !otnId.before( previous.getInputOtnId() ) ) {
// the last LeftTuple comes before the new one so just add it at the end
tuple.setHandlePrevious( previous );
tuple.setHandleNext( null );
previous.setHandleNext( tuple );
setLastTuple( tuple, left );
return;
}
Tuple next = previous;
previous = previous.getHandlePrevious();
while (previous != null && otnId.before( previous.getInputOtnId() ) ) {
next = previous;
previous = previous.getHandlePrevious();
}
tuple.setHandleNext( next );
next.setHandlePrevious( tuple );
tuple.setHandlePrevious( previous );
if ( previous != null ) {
previous.setHandleNext( tuple );
} else {
setFirstTuple( tuple, left );
}
}
private void addLastTuple(Tuple tuple, boolean left) {
if (left) {
addLastLeftTuple( ( (LeftTuple) tuple ) );
} else {
addLastRightTuple( ( (RightTuple) tuple ) );
}
}
private void setFirstTuple(Tuple tuple, boolean left) {
if (left) {
firstLeftTuple = ( (LeftTuple) tuple );
} else {
firstRightTuple = ( (RightTuple) tuple );
}
}
private void setLastTuple(Tuple tuple, boolean left) {
if (left) {
lastLeftTuple = ( (LeftTuple) tuple );
} else {
lastRightTuple = ( (RightTuple) tuple );
}
}
public void removeLeftTuple( LeftTuple leftTuple ) {
LeftTuple previous = leftTuple.getHandlePrevious();
LeftTuple next = leftTuple.getHandleNext();
if ( previous != null && next != null ) {
// remove from middle
previous.setHandleNext( next );
next.setHandlePrevious( previous );
} else if ( next != null ) {
// remove from first
next.setHandlePrevious( null );
firstLeftTuple = next;
} else if ( previous != null ) {
// remove from end
previous.setHandleNext( null );
lastLeftTuple = previous;
} else {
// single remaining item, no previous or next
firstLeftTuple = null;
lastLeftTuple = null;
}
leftTuple.setHandlePrevious( null );
leftTuple.setHandleNext( null );
}
public void addFirstRightTuple( RightTuple rightTuple ) {
RightTuple previousFirst = firstRightTuple;
firstRightTuple = rightTuple;
if ( previousFirst == null ) {
rightTuple.setHandlePrevious( null );
rightTuple.setHandleNext( null );
lastRightTuple = rightTuple;
} else {
rightTuple.setHandlePrevious( null );
rightTuple.setHandleNext( previousFirst );
previousFirst.setHandlePrevious( rightTuple );
}
}
public void addLastRightTuple( RightTuple rightTuple ) {
RightTuple previousLast = lastRightTuple;
if( previousLast == null ){
rightTuple.setHandlePrevious( null );
rightTuple.setHandleNext( null );
firstRightTuple = rightTuple;
lastRightTuple = rightTuple;
} else {
rightTuple.setHandlePrevious( previousLast );
rightTuple.setHandleNext( null );
previousLast.setHandleNext( rightTuple );
lastRightTuple = rightTuple;
}
}
public void removeRightTuple( RightTuple rightTuple ) {
RightTuple previous = rightTuple.getHandlePrevious();
RightTuple next = rightTuple.getHandleNext();
if ( previous != null && next != null ) {
// remove from middle
previous.setHandleNext( next );
next.setHandlePrevious( previous );
} else if ( next != null ) {
// remove from first
next.setHandlePrevious( null );
firstRightTuple = next;
} else if ( previous != null ) {
// remove from end
previous.setHandleNext( null );
lastRightTuple = previous;
} else {
// single remaining item, no previous or next
firstRightTuple = null;
lastRightTuple = null;
}
rightTuple.setHandlePrevious( null );
rightTuple.setHandleNext( null );
}
public void clearLeftTuples() {
firstLeftTuple = null;
lastLeftTuple = null;
}
public void clearRightTuples() {
firstRightTuple = null;
lastRightTuple = null;
}
public void forEachRightTuple(Consumer rightTupleConsumer) {
for (RightTuple rightTuple = firstRightTuple; rightTuple != null; ) {
RightTuple nextRightTuple = rightTuple.getHandleNext();
rightTupleConsumer.accept( rightTuple );
rightTuple = nextRightTuple;
}
}
public RightTuple findFirstRightTuple(Predicate rightTuplePredicate ) {
for (RightTuple rightTuple = firstRightTuple; rightTuple != null; ) {
RightTuple nextRightTuple = rightTuple.getHandleNext();
if (rightTuplePredicate.test( rightTuple )) {
return rightTuple;
}
rightTuple = nextRightTuple;
}
return null;
}
public void forEachLeftTuple(Consumer leftTupleConsumer) {
for ( LeftTuple leftTuple = firstLeftTuple; leftTuple != null; ) {
LeftTuple nextLeftTuple = leftTuple.getHandleNext();
leftTupleConsumer.accept( leftTuple );
leftTuple = nextLeftTuple;
}
}
public LeftTuple findFirstLeftTuple(Predicate lefttTuplePredicate ) {
for ( LeftTuple leftTuple = firstLeftTuple; leftTuple != null; ) {
LeftTuple nextLeftTuple = leftTuple.getHandleNext();
if (lefttTuplePredicate.test( leftTuple )) {
return leftTuple;
}
leftTuple = nextLeftTuple;
}
return null;
}
public LeftTuple getFirstLeftTuple(int partition) {
return getFirstLeftTuple();
}
LeftTuple getFirstLeftTuple() {
return firstLeftTuple;
}
public void setFirstLeftTuple( LeftTuple firstLeftTuple, int partition ) {
setFirstLeftTuple( firstLeftTuple );
}
void setFirstLeftTuple( LeftTuple firstLeftTuple ) {
this.firstLeftTuple = firstLeftTuple;
}
public RightTuple getFirstRightTuple(int partition) {
return getFirstRightTuple();
}
RightTuple getFirstRightTuple() {
return firstRightTuple;
}
}
public static class CompositeLinkedTuples implements LinkedTuples {
private final SingleLinkedTuples[] partitionedTuples = new SingleLinkedTuples[RuleBasePartitionId.PARALLEL_PARTITIONS_NUMBER];
public CompositeLinkedTuples() {
for (int i = 0; i < partitionedTuples.length; i++) {
partitionedTuples[i] = new SingleLinkedTuples();
}
}
@Override
public LinkedTuples clone() {
CompositeLinkedTuples clone = new CompositeLinkedTuples();
for (int i = 0; i < partitionedTuples.length; i++) {
clone.partitionedTuples[i] = partitionedTuples[i].clone();
}
return clone;
}
private LinkedTuples getPartitionTuples(Tuple tuple) {
return partitionedTuples[tuple.getTupleSink().getPartitionId().getParallelEvaluationSlot()];
}
@Override
public void addFirstLeftTuple( LeftTuple leftTuple ) {
getPartitionTuples(leftTuple).addFirstLeftTuple( leftTuple );
}
@Override
public void addLastLeftTuple( LeftTuple leftTuple ) {
getPartitionTuples(leftTuple).addLastLeftTuple( leftTuple );
}
@Override
public void addTupleInPosition( Tuple tuple ) {
getPartitionTuples(tuple).addTupleInPosition( tuple );
}
@Override
public void removeLeftTuple( LeftTuple leftTuple ) {
getPartitionTuples(leftTuple).removeLeftTuple( leftTuple );
}
@Override
public void addFirstRightTuple( RightTuple rightTuple ) {
getPartitionTuples(rightTuple).addFirstRightTuple( rightTuple );
}
@Override
public void addLastRightTuple( RightTuple rightTuple ) {
getPartitionTuples(rightTuple).addLastRightTuple( rightTuple );
}
@Override
public void removeRightTuple( RightTuple rightTuple ) {
if (rightTuple.getTupleSink() != null) {
getPartitionTuples( rightTuple ).removeRightTuple( rightTuple );
}
}
@Override
public void clearLeftTuples() {
for (int i = 0; i < partitionedTuples.length; i++) {
clearLeftTuples(i);
}
}
public void clearLeftTuples(int partition) {
partitionedTuples[partition].clearLeftTuples();
}
@Override
public void clearRightTuples() {
for (int i = 0; i < partitionedTuples.length; i++) {
clearRightTuples(i);
}
}
public void clearRightTuples(int partition) {
partitionedTuples[partition].clearRightTuples();
}
@Override
public void forEachRightTuple( Consumer rightTupleConsumer ) {
for (int i = 0; i < partitionedTuples.length; i++) {
forEachRightTuple( i, rightTupleConsumer );
}
}
public void forEachRightTuple( int partition, Consumer rightTupleConsumer ) {
partitionedTuples[partition].forEachRightTuple( rightTupleConsumer );
}
@Override
public RightTuple findFirstRightTuple( Predicate rightTuplePredicate ) {
return Stream.of( partitionedTuples )
.map( t -> t.findFirstRightTuple( rightTuplePredicate ) )
.filter( Objects::nonNull )
.findFirst()
.orElse( null );
}
@Override
public void forEachLeftTuple( Consumer leftTupleConsumer ) {
for (int i = 0; i < partitionedTuples.length; i++) {
forEachLeftTuple( i, leftTupleConsumer );
}
}
public void forEachLeftTuple( int partition, Consumer leftTupleConsumer ) {
partitionedTuples[partition].forEachLeftTuple( leftTupleConsumer );
}
@Override
public LeftTuple findFirstLeftTuple( Predicate lefttTuplePredicate ) {
return Stream.of( partitionedTuples )
.map( t -> t.findFirstLeftTuple( lefttTuplePredicate ) )
.filter( Objects::nonNull )
.findFirst()
.orElse( null );
}
@Override
public LeftTuple getFirstLeftTuple(int partition) {
return partitionedTuples[partition].getFirstLeftTuple();
}
@Override
public void setFirstLeftTuple( LeftTuple firstLeftTuple, int partition ) {
partitionedTuples[partition].setFirstLeftTuple(firstLeftTuple);
}
@Override
public RightTuple getFirstRightTuple(int partition) {
return partitionedTuples[partition].getFirstRightTuple();
}
}
@Override
public void forEachRightTuple(Consumer rightTupleConsumer) {
linkedTuples.forEachRightTuple( rightTupleConsumer );
}
@Override
public RightTuple findFirstRightTuple(Predicate rightTuplePredicate ) {
return linkedTuples.findFirstRightTuple( rightTuplePredicate );
}
@Override
public void forEachLeftTuple(Consumer leftTupleConsumer) {
linkedTuples.forEachLeftTuple( leftTupleConsumer );
}
@Override
public LeftTuple findFirstLeftTuple(Predicate lefttTuplePredicate ) {
return linkedTuples.findFirstLeftTuple( lefttTuplePredicate );
}
@Override
public LeftTuple getFirstLeftTuple() {
if (linkedTuples instanceof SingleLinkedTuples) {
return ( (SingleLinkedTuples) linkedTuples ).getFirstLeftTuple();
}
throw new UnsupportedOperationException();
}
@Override
public void setFirstLeftTuple( LeftTuple firstLeftTuple ) {
if (linkedTuples instanceof SingleLinkedTuples) {
( (SingleLinkedTuples) linkedTuples ).setFirstLeftTuple( firstLeftTuple );
} else {
throw new UnsupportedOperationException();
}
}
@Override
public RightTuple getFirstRightTuple() {
if (linkedTuples instanceof SingleLinkedTuples) {
return ( (SingleLinkedTuples) linkedTuples ).getFirstRightTuple();
}
throw new UnsupportedOperationException();
}
@Override
public LinkedTuples getLinkedTuples() {
return linkedTuples;
}
@Override
public LinkedTuples detachLinkedTuples() {
LinkedTuples detached = linkedTuples;
linkedTuples = new SingleLinkedTuples();
return detached;
}
@Override
public LinkedTuples detachLinkedTuplesForPartition(int i) {
LinkedTuples detached = ( (CompositeLinkedTuples) linkedTuples ).partitionedTuples[i];
( (CompositeLinkedTuples) linkedTuples ).partitionedTuples[i] = new SingleLinkedTuples();
return detached;
}
@Override
public InternalDataSource getDataSource() {
return parentHandle != null ? parentHandle.getDataSource() : null;
}
public InternalFactHandle getParentHandle() {
return parentHandle;
}
public void setParentHandle( InternalFactHandle parentHandle ) {
this.parentHandle = parentHandle;
}
}
