public static void readFactHandles(
MarshallerReaderContext context,
org.drools.core.marshalling.impl.ProtobufMessages.EntryPoint _ep,
ObjectStore objectStore,
List<PropagationContextImpl> pctxs)
throws IOException, ClassNotFoundException {
InternalWorkingMemory wm = context.wm;
SessionEntryPoint entryPoint = context.wm.getEntryPoints().get(_ep.getEntryPointId());
// load the handles
for (ProtobufMessages.FactHandle _handle : _ep.getHandleList()) {
InternalFactHandle handle = readFactHandle(context, entryPoint, _handle);
context.handles.put(handle.getId(), handle);
if (!_handle.getIsJustified()) {
// BeliefSystem handles the Object type
if (handle.getObject() != null) {
objectStore.addHandle(handle, handle.getObject());
}
// add handle to object type node
assertHandleIntoOTN(context, wm, handle, pctxs);
}
}
}
public boolean evaluate(
InternalWorkingMemory workingMemory,
final InternalReadAccessor extractor1,
final InternalFactHandle handle1,
final InternalReadAccessor extractor2,
final InternalFactHandle handle2) {
if (extractor1.isNullValue(workingMemory, handle1.getObject())
|| extractor2.isNullValue(workingMemory, handle2.getObject())) {
return false;
}
long rightTS;
if (extractor1.isSelfReference()) {
rightTS = ((EventFactHandle) handle1).getEndTimestamp();
} else {
rightTS = extractor1.getLongValue(workingMemory, handle1.getObject());
}
long leftTS;
if (extractor2.isSelfReference()) {
leftTS = ((EventFactHandle) handle2).getStartTimestamp();
} else {
leftTS = extractor2.getLongValue(workingMemory, handle2.getObject());
}
return evaluate(rightTS, leftTS);
}
public boolean evaluate(
InternalWorkingMemory workingMemory,
final InternalReadAccessor extractor1,
final InternalFactHandle handle1,
final InternalReadAccessor extractor2,
final InternalFactHandle handle2) {
if (extractor1.isNullValue(workingMemory, handle1.getObject())
|| extractor2.isNullValue(workingMemory, handle2.getObject())) {
return false;
}
long rightTS;
if (extractor1.isSelfReference()) {
rightTS = ((EventFactHandle) handle1).getEndTimestamp();
} else {
rightTS = extractor1.getLongValue(workingMemory, handle1.getObject());
}
long leftTS;
if (extractor2.isSelfReference()) {
leftTS = ((EventFactHandle) handle2).getStartTimestamp();
} else {
leftTS = extractor2.getLongValue(workingMemory, handle2.getObject());
}
long dist = leftTS - rightTS;
return this.getOperator().isNegated() ^ (dist >= this.initRange && dist <= this.finalRange);
}
public boolean evaluate(
InternalWorkingMemory workingMemory,
final InternalReadAccessor extractor1,
final InternalFactHandle handl1,
final InternalReadAccessor extractor2,
final InternalFactHandle handl2) {
final Object value1 = extractor1.getValue(workingMemory, handl1.getObject());
final Object value2 = extractor2.getValue(workingMemory, handl2.getObject());
return !soundslike((String) value1, (String) value2);
}
public void execute(InternalWorkingMemory workingMemory) {
DroolsQuery query = (DroolsQuery) factHandle.getObject();
RightTupleList rightTuples = query.getResultInsertRightTupleList();
query.setResultInsertRightTupleList(
null); // null so further operations happen on a new stack element
for (RightTuple rightTuple = rightTuples.getFirst(); rightTuple != null; ) {
RightTuple tmp = (RightTuple) rightTuple.getNext();
rightTuples.remove(rightTuple);
for (LeftTuple childLeftTuple = rightTuple.firstChild;
childLeftTuple != null;
childLeftTuple = (LeftTuple) childLeftTuple.getRightParentNext()) {
node.getSinkPropagator()
.doPropagateAssertLeftTuple(
context, workingMemory, childLeftTuple, childLeftTuple.getLeftTupleSink());
}
rightTuple = tmp;
}
// @FIXME, this should work, but it's closing needed fact handles
// actually an evaluation 34 appears on the stack twice....
// if ( !node.isOpenQuery() ) {
// workingMemory.getFactHandleFactory().destroyFactHandle( this.factHandle );
// }
}
private static void assertHandleIntoOTN(
MarshallerReaderContext context,
InternalWorkingMemory wm,
InternalFactHandle handle,
List<PropagationContextImpl> pctxs) {
Object object = handle.getObject();
InternalWorkingMemoryEntryPoint ep = (InternalWorkingMemoryEntryPoint) handle.getEntryPoint();
ObjectTypeConf typeConf =
((InternalWorkingMemoryEntryPoint) handle.getEntryPoint())
.getObjectTypeConfigurationRegistry()
.getObjectTypeConf(ep.getEntryPoint(), object);
PropagationContextImpl propagationContext =
new PropagationContextImpl(
wm.getNextPropagationIdCounter(),
PropagationContext.INSERTION,
null,
null,
handle,
ep.getEntryPoint(),
context);
// keeping this list for a later cleanup is necessary because of the lazy propagations that
// might occur
pctxs.add(propagationContext);
ep.getEntryPointNode().assertObject(handle, propagationContext, typeConf, wm);
propagationContext.evaluateActionQueue(wm);
wm.executeQueuedActions();
}
public static void readTruthMaintenanceSystem(
MarshallerReaderContext context,
SessionEntryPoint wmep,
ProtobufMessages.EntryPoint _ep,
List<PropagationContextImpl> pctxs)
throws IOException, ClassNotFoundException {
TruthMaintenanceSystem tms = ((NamedEntryPoint) wmep).getTruthMaintenanceSystem();
ProtobufMessages.TruthMaintenanceSystem _tms = _ep.getTms();
for (ProtobufMessages.EqualityKey _key : _tms.getKeyList()) {
InternalFactHandle handle = (InternalFactHandle) context.handles.get(_key.getHandleId());
// ObjectTypeConf state is not marshalled, so it needs to be re-determined
ObjectTypeConf typeConf =
context
.wm
.getObjectTypeConfigurationRegistry()
.getObjectTypeConf(
((NamedEntryPoint) handle.getEntryPoint()).getEntryPoint(), handle.getObject());
if (!typeConf.isTMSEnabled()) {
typeConf.enableTMS();
}
EqualityKey key = new EqualityKey(handle, _key.getStatus());
handle.setEqualityKey(key);
if (key.getStatus() == EqualityKey.JUSTIFIED) {
// not yet added to the object stores
((NamedEntryPoint) handle.getEntryPoint())
.getObjectStore()
.addHandle(handle, handle.getObject());
// add handle to object type node
assertHandleIntoOTN(context, context.wm, handle, pctxs);
}
for (Integer factHandleId : _key.getOtherHandleList()) {
handle = (InternalFactHandle) context.handles.get(factHandleId.intValue());
key.addFactHandle(handle);
handle.setEqualityKey(key);
}
tms.put(key);
readBeliefSet(context, tms, key, _key.getBeliefSet());
}
}
public boolean evaluateCachedLeft(
InternalWorkingMemory workingMemory,
final VariableContextEntry context,
final InternalFactHandle right) {
if (context.leftNull || context.extractor.isNullValue(workingMemory, right.getObject())) {
return false;
}
long leftTS = ((LeftStartRightEndContextEntry) context).timestamp;
long rightTS;
if (context.getFieldExtractor().isSelfReference()) {
rightTS = ((EventFactHandle) right).getEndTimestamp();
} else {
rightTS = context.getFieldExtractor().getLongValue(workingMemory, right.getObject());
}
return evaluate(rightTS, leftTS);
}
public boolean evaluateCachedLeft(
InternalWorkingMemory workingMemory,
final VariableContextEntry context,
final InternalFactHandle right) {
final String value = (String) context.extractor.getValue(workingMemory, right.getObject());
return !soundslike(value, (String) ((ObjectVariableContextEntry) context).left);
}
public boolean evaluateCachedLeft(
InternalWorkingMemory workingMemory,
final VariableContextEntry context,
final InternalFactHandle right) {
if (context.leftNull || context.extractor.isNullValue(workingMemory, right.getObject())) {
return false;
}
long leftTS = ((LeftStartRightEndContextEntry) context).timestamp;
long rightTS;
if (context.getFieldExtractor().isSelfReference()) {
rightTS = ((EventFactHandle) right).getEndTimestamp();
} else {
rightTS = context.getFieldExtractor().getLongValue(workingMemory, right.getObject());
}
long dist = leftTS - rightTS;
return this.getOperator().isNegated() ^ (dist >= this.initRange && dist <= this.finalRange);
}
public boolean evaluateCachedRight(
InternalWorkingMemory workingMemory,
final VariableContextEntry context,
final InternalFactHandle left) {
final String value = (String) ((ObjectVariableContextEntry) context).right;
return !soundslike(
value,
(String) context.declaration.getExtractor().getValue(workingMemory, left.getObject()));
}
private static ProtobufMessages.FactHandle.HandleType getHandleType(InternalFactHandle handle) {
if (handle instanceof EventFactHandle) {
return ProtobufMessages.FactHandle.HandleType.EVENT;
} else if (handle instanceof QueryElementFactHandle) {
return ProtobufMessages.FactHandle.HandleType.QUERY;
} else if (handle.getObject() instanceof InitialFact) {
return ProtobufMessages.FactHandle.HandleType.INITIAL_FACT;
}
return ProtobufMessages.FactHandle.HandleType.FACT;
}
public boolean evaluate(
InternalWorkingMemory workingMemory,
final InternalReadAccessor extractor,
final InternalFactHandle handle1,
final FieldValue object2) {
final String value1 = (String) extractor.getValue(workingMemory, handle1.getObject());
final String value2 = (String) object2.getValue();
return !soundslike(value1, value2);
}
@Override
public Iterator getResults(
Tuple leftTuple, InternalWorkingMemory wm, PropagationContext ctx, Object providerContext) {
InternalFactHandle fh = leftTuple.getFactHandle();
Object obj = fh.getObject();
if (obj instanceof DroolsQuery) {
obj = ((DroolsQuery) obj).getElements()[declaration.getPattern().getOffset()];
}
return xpathEvaluator.evaluate(wm, leftTuple, obj).iterator();
}
/**
* This is the entry point into the network for all asserted Facts. Iterates a cache of matching
* <code>ObjectTypdeNode</code>s asserting the Fact. If the cache does not exist it first iteraes
* and builds the cache.
*
* @param factHandle The FactHandle of the fact to assert
* @param context The <code>PropagationContext</code> of the <code>WorkingMemory</code> action
* @param workingMemory The working memory session.
*/
public void assertObject(
final InternalFactHandle factHandle,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {
EntryPointId entryPoint = context.getEntryPoint();
EntryPointNode node = this.entryPoints.get(entryPoint);
ObjectTypeConf typeConf =
((InternalWorkingMemoryEntryPoint)
workingMemory.getWorkingMemoryEntryPoint(entryPoint.getEntryPointId()))
.getObjectTypeConfigurationRegistry()
.getObjectTypeConf(entryPoint, factHandle.getObject());
node.assertObject(factHandle, context, typeConf, workingMemory);
}
public void execute(InternalWorkingMemory workingMemory) {
DroolsQuery query = (DroolsQuery) factHandle.getObject();
RightTupleList rightTuples = query.getResultRetractRightTupleList();
query.setResultRetractRightTupleList(
null); // null so further operations happen on a new stack element
for (RightTuple rightTuple = rightTuples.getFirst(); rightTuple != null; ) {
RightTuple tmp = (RightTuple) rightTuple.getNext();
rightTuples.remove(rightTuple);
this.node
.getSinkPropagator()
.propagateRetractRightTuple(rightTuple, context, workingMemory);
rightTuple = tmp;
}
}
public void byPassModifyToBetaNode(
final InternalFactHandle factHandle,
final ModifyPreviousTuples modifyPreviousTuples,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {
final Object object = factHandle.getObject();
// We need to iterate in the same order as the assert
if (this.hashedFieldIndexes != null) {
// Iterate the FieldIndexes to see if any are hashed
for (FieldIndex fieldIndex = this.hashedFieldIndexes.getFirst();
fieldIndex != null;
fieldIndex = fieldIndex.getNext()) {
if (!fieldIndex.isHashed()) {
continue;
}
// this field is hashed so set the existing hashKey and see if there is a sink for it
final AlphaNode sink = (AlphaNode) this.hashedSinkMap.get(new HashKey(fieldIndex, object));
if (sink != null) {
// only alpha nodes are hashable
sink.getObjectSinkPropagator()
.byPassModifyToBetaNode(factHandle, modifyPreviousTuples, context, workingMemory);
}
}
}
// propagate unhashed
if (this.hashableSinks != null) {
for (ObjectSinkNode sink = this.hashableSinks.getFirst();
sink != null;
sink = sink.getNextObjectSinkNode()) {
// only alpha nodes are hashable
((AlphaNode) sink)
.getObjectSinkPropagator()
.byPassModifyToBetaNode(factHandle, modifyPreviousTuples, context, workingMemory);
}
}
if (this.otherSinks != null) {
// propagate others
for (ObjectSinkNode sink = this.otherSinks.getFirst();
sink != null;
sink = sink.getNextObjectSinkNode()) {
// compound alpha, lianode or betanode
sink.byPassModifyToBetaNode(factHandle, modifyPreviousTuples, context, workingMemory);
}
}
}
public boolean evaluate(
InternalWorkingMemory workingMemory,
final InternalReadAccessor extractor,
final InternalFactHandle object1,
final FieldValue object2) {
long rightTS;
if (extractor.isSelfReference()) {
rightTS = ((EventFactHandle) object1).getStartTimestamp();
} else {
rightTS = extractor.getLongValue(workingMemory, object1.getObject());
}
long leftTS = ((Date) object2.getValue()).getTime();
return evaluate(rightTS, leftTS);
}
public void propagateModifyObject(
final InternalFactHandle factHandle,
final ModifyPreviousTuples modifyPreviousTuples,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {
final Object object = factHandle.getObject();
// Iterates the FieldIndex collection, which tells you if particularly field is hashed or not
// if the field is hashed then it builds the hashkey to return the correct sink for the current
// objects slot's
// value, one object may have multiple fields indexed.
if (this.hashedFieldIndexes != null) {
// Iterate the FieldIndexes to see if any are hashed
for (FieldIndex fieldIndex = this.hashedFieldIndexes.getFirst();
fieldIndex != null;
fieldIndex = fieldIndex.getNext()) {
if (!fieldIndex.isHashed()) {
continue;
}
// this field is hashed so set the existing hashKey and see if there is a sink for it
final AlphaNode sink = (AlphaNode) this.hashedSinkMap.get(new HashKey(fieldIndex, object));
if (sink != null) {
// go straight to the AlphaNode's propagator, as we know it's true and no need to retest
sink.getObjectSinkPropagator()
.propagateModifyObject(factHandle, modifyPreviousTuples, context, workingMemory);
}
}
}
// propagate unhashed
if (this.hashableSinks != null) {
for (ObjectSinkNode sink = this.hashableSinks.getFirst();
sink != null;
sink = sink.getNextObjectSinkNode()) {
doPropagateModifyObject(factHandle, modifyPreviousTuples, context, workingMemory, sink);
}
}
if (this.otherSinks != null) {
// propagate others
for (ObjectSinkNode sink = this.otherSinks.getFirst();
sink != null;
sink = sink.getNextObjectSinkNode()) {
doPropagateModifyObject(factHandle, modifyPreviousTuples, context, workingMemory, sink);
}
}
}
private static ProtobufMessages.FactHandle writeFactHandle(
MarshallerWriteContext context,
ObjectMarshallingStrategyStore objectMarshallingStrategyStore,
InternalFactHandle handle)
throws IOException {
ProtobufMessages.FactHandle.Builder _handle = ProtobufMessages.FactHandle.newBuilder();
_handle.setType(getHandleType(handle));
_handle.setId(handle.getId());
_handle.setRecency(handle.getRecency());
if (_handle.getType() == ProtobufMessages.FactHandle.HandleType.EVENT) {
// is event
EventFactHandle efh = (EventFactHandle) handle;
_handle.setTimestamp(efh.getStartTimestamp());
_handle.setDuration(efh.getDuration());
_handle.setIsExpired(efh.isExpired());
_handle.setActivationsCount(efh.getActivationsCount());
}
if (handle.getEqualityKey() != null
&& handle.getEqualityKey().getStatus() == EqualityKey.JUSTIFIED) {
_handle.setIsJustified(true);
} else {
_handle.setIsJustified(false);
}
Object object = handle.getObject();
if (object != null) {
ObjectMarshallingStrategy strategy = objectMarshallingStrategyStore.getStrategyObject(object);
Integer index = context.getStrategyIndex(strategy);
_handle.setStrategyIndex(index.intValue());
_handle.setObject(
ByteString.copyFrom(
strategy.marshal(context.strategyContext.get(strategy), context, object)));
}
return _handle.build();
}
public void execute(InternalWorkingMemory workingMemory) {
InternalFactHandle factHandle = (InternalFactHandle) leftTuple.getObject();
if (node.isOpenQuery()) {
// iterate to the query terminal node, as the child leftTuples will get picked up there
workingMemory
.getEntryPointNode()
.retractObject(
factHandle,
context,
workingMemory
.getObjectTypeConfigurationRegistry()
.getObjectTypeConf(workingMemory.getEntryPoint(), factHandle.getObject()),
workingMemory);
// workingMemory.getFactHandleFactory().destroyFactHandle( factHandle );
} else {
// get child left tuples, as there is no open query
if (leftTuple.getFirstChild() != null) {
node.getSinkPropagator().propagateRetractLeftTuple(leftTuple, context, workingMemory);
}
}
}
public void assertObject(
final InternalFactHandle handle,
final PropagationContext context,
final ObjectTypeConf objectTypeConf,
final InternalWorkingMemory workingMemory) {
if (log.isTraceEnabled()) {
log.trace("Insert {}", handle.toString());
}
// checks if shadow is enabled
if (objectTypeConf.isShadowEnabled()) {
// the user has implemented the ShadowProxy interface, let their implementation
// know it is safe to update the information the engine can see.
((ShadowProxy) handle.getObject()).updateProxy();
}
ObjectTypeNode[] cachedNodes = objectTypeConf.getObjectTypeNodes();
for (int i = 0, length = cachedNodes.length; i < length; i++) {
cachedNodes[i].assertObject(handle, context, workingMemory);
}
}
@Test
public void testRestract() {
final PropagationContext context =
pctxFactory.createPropagationContext(0, PropagationContext.INSERTION, null, null, null);
final StatefulKnowledgeSessionImpl workingMemory =
new StatefulKnowledgeSessionImpl(
1L, (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase());
final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
final MvelConstraint constraint =
new MvelConstraintTestUtil(
"type == \"stilton\"", FieldFactory.getInstance().getFieldValue("stilton"), extractor);
final List list = new ArrayList();
final Cheese cheese1 = new Cheese("stilton", 5);
final Cheese cheese2 = new Cheese("stilton", 15);
list.add(cheese1);
list.add(cheese2);
final MockDataProvider dataProvider = new MockDataProvider(list);
final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
From fromCe = new From(dataProvider);
fromCe.setResultPattern(pattern);
final ReteFromNode from =
new ReteFromNode(
3,
dataProvider,
new MockTupleSource(30),
new AlphaNodeFieldConstraint[] {constraint},
null,
true,
buildContext,
fromCe);
final MockLeftTupleSink sink = new MockLeftTupleSink(5);
from.addTupleSink(sink);
final List asserted = sink.getAsserted();
final Person person1 = new Person("xxx2", 30);
final FactHandle person1Handle = workingMemory.insert(person1);
final LeftTuple tuple = new LeftTupleImpl((DefaultFactHandle) person1Handle, from, true);
from.assertLeftTuple(tuple, context, workingMemory);
assertEquals(2, asserted.size());
final FromMemory memory = (FromMemory) workingMemory.getNodeMemory(from);
assertEquals(1, memory.getBetaMemory().getLeftTupleMemory().size());
assertNull(memory.getBetaMemory().getRightTupleMemory());
RightTuple rightTuple2 = tuple.getFirstChild().getRightParent();
RightTuple rightTuple1 = tuple.getFirstChild().getHandleNext().getRightParent();
assertFalse(rightTuple1.equals(rightTuple2));
assertNull(tuple.getFirstChild().getHandleNext().getHandleNext());
final InternalFactHandle handle2 = rightTuple2.getFactHandle();
final InternalFactHandle handle1 = rightTuple1.getFactHandle();
assertEquals(handle1.getObject(), cheese2);
assertEquals(handle2.getObject(), cheese1);
from.retractLeftTuple(tuple, context, workingMemory);
assertEquals(0, memory.getBetaMemory().getLeftTupleMemory().size());
assertNull(memory.getBetaMemory().getRightTupleMemory());
}
private static void readBeliefSet(
MarshallerReaderContext context,
TruthMaintenanceSystem tms,
EqualityKey key,
ProtobufMessages.BeliefSet _beliefSet)
throws IOException, ClassNotFoundException {
InternalFactHandle handle = (InternalFactHandle) context.handles.get(_beliefSet.getHandleId());
for (ProtobufMessages.LogicalDependency _logicalDependency :
_beliefSet.getLogicalDependencyList()) {
ProtobufMessages.Activation _activation = _logicalDependency.getActivation();
Activation activation =
(Activation)
context
.filter
.getTuplesCache()
.get(
PersisterHelper.createActivationKey(
_activation.getPackageName(),
_activation.getRuleName(),
_activation.getTuple()))
.getObject();
Object object = null;
ObjectMarshallingStrategy strategy = null;
if (_logicalDependency.hasObjectStrategyIndex()) {
strategy = context.usedStrategies.get(_logicalDependency.getObjectStrategyIndex());
object =
strategy.unmarshal(
context.strategyContexts.get(strategy),
context,
_logicalDependency.getObject().toByteArray(),
(context.ruleBase == null) ? null : context.ruleBase.getRootClassLoader());
}
Object value = null;
if (_logicalDependency.hasValueStrategyIndex()) {
strategy = context.usedStrategies.get(_logicalDependency.getValueStrategyIndex());
value =
strategy.unmarshal(
context.strategyContexts.get(strategy),
context,
_logicalDependency.getValue().toByteArray(),
(context.ruleBase == null) ? null : context.ruleBase.getRootClassLoader());
}
ObjectTypeConf typeConf =
context
.wm
.getObjectTypeConfigurationRegistry()
.getObjectTypeConf(
((NamedEntryPoint) handle.getEntryPoint()).getEntryPoint(), handle.getObject());
tms.readLogicalDependency(
handle,
object,
value,
activation,
activation.getPropagationContext(),
activation.getRule(),
typeConf);
}
}
public void modifyObject(
final InternalFactHandle handle,
final PropagationContext context,
final ObjectTypeConf objectTypeConf,
final InternalWorkingMemory wm) {
if (log.isTraceEnabled()) {
log.trace("Update {}", handle.toString());
}
// checks if shadow is enabled
if (objectTypeConf.isShadowEnabled()) {
// the user has implemented the ShadowProxy interface, let their implementation
// know it is safe to update the information the engine can see.
((ShadowProxy) handle.getObject()).updateProxy();
}
ObjectTypeNode[] cachedNodes = objectTypeConf.getObjectTypeNodes();
// make a reference to the previous tuples, then null then on the handle
ModifyPreviousTuples modifyPreviousTuples =
new ModifyPreviousTuples(
handle.getFirstLeftTuple(), handle.getFirstRightTuple(), unlinkingEnabled);
handle.clearLeftTuples();
handle.clearRightTuples();
for (int i = 0, length = cachedNodes.length; i < length; i++) {
cachedNodes[i].modifyObject(handle, modifyPreviousTuples, context, wm);
// remove any right tuples that matches the current OTN before continue the modify on the next
// OTN cache entry
if (i < cachedNodes.length - 1) {
RightTuple rightTuple = modifyPreviousTuples.peekRightTuple();
while (rightTuple != null
&& ((BetaNode) rightTuple.getRightTupleSink()).getObjectTypeNode() == cachedNodes[i]) {
modifyPreviousTuples.removeRightTuple();
if (unlinkingEnabled) {
BetaMemory bm = BetaNode.getBetaMemory((BetaNode) rightTuple.getRightTupleSink(), wm);
BetaNode.doDeleteRightTuple(rightTuple, wm, bm);
} else {
((BetaNode) rightTuple.getRightTupleSink()).retractRightTuple(rightTuple, context, wm);
}
rightTuple = modifyPreviousTuples.peekRightTuple();
}
LeftTuple leftTuple;
ObjectTypeNode otn;
while (true) {
leftTuple = modifyPreviousTuples.peekLeftTuple();
otn = null;
if (leftTuple != null) {
LeftTupleSink leftTupleSink = leftTuple.getLeftTupleSink();
if (leftTupleSink instanceof LeftTupleSource) {
otn = ((LeftTupleSource) leftTupleSink).getLeftTupleSource().getObjectTypeNode();
} else if (leftTupleSink instanceof RuleTerminalNode) {
otn = ((RuleTerminalNode) leftTupleSink).getObjectTypeNode();
}
}
if (otn == null || otn == cachedNodes[i + 1]) break;
modifyPreviousTuples.removeLeftTuple();
if (unlinkingEnabled) {
LeftInputAdapterNode liaNode =
(LeftInputAdapterNode) leftTuple.getLeftTupleSink().getLeftTupleSource();
LiaNodeMemory lm = (LiaNodeMemory) wm.getNodeMemory(liaNode);
LeftInputAdapterNode.doDeleteObject(
leftTuple, context, lm.getSegmentMemory(), wm, liaNode, true, lm);
} else {
leftTuple.getLeftTupleSink().retractLeftTuple(leftTuple, context, wm);
}
}
}
}
modifyPreviousTuples.retractTuples(context, wm);
}