private FieldIndex unregisterFieldIndex(final int index) {
final FieldIndex fieldIndex = findFieldIndex(index);
fieldIndex.decreaseCounter();
// if the fieldcount is 0 then remove it from the linkedlist
if (fieldIndex.getCount() == 0) {
this.hashedFieldIndexes.remove(fieldIndex);
// if the linkedlist is empty then null it
if (this.hashedFieldIndexes.isEmpty()) {
this.hashedFieldIndexes = null;
}
}
return fieldIndex;
}
public ObjectSinkPropagator removeObjectSink(final ObjectSink sink) {
this.sinks = null; // dirty it, so it'll rebuild on next get
if (sink.getType() == NodeTypeEnums.AlphaNode) {
final AlphaNode alphaNode = (AlphaNode) sink;
final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();
if (fieldConstraint instanceof IndexableConstraint) {
final IndexableConstraint indexableConstraint = (IndexableConstraint) fieldConstraint;
final FieldValue value = indexableConstraint.getField();
if (isHashable(indexableConstraint)) {
final InternalReadAccessor fieldAccessor = indexableConstraint.getFieldExtractor();
final int index = fieldAccessor.getIndex();
final FieldIndex fieldIndex = unregisterFieldIndex(index);
if (fieldIndex.isHashed()) {
HashKey hashKey = new HashKey(index, value, fieldAccessor);
this.hashedSinkMap.remove(hashKey);
if (fieldIndex.getCount() <= this.alphaNodeHashingThreshold - 1) {
// we have less than three so unhash
unHashSinks(fieldIndex);
}
} else {
this.hashableSinks.remove(alphaNode);
}
if (this.hashableSinks != null && this.hashableSinks.isEmpty()) {
this.hashableSinks = null;
}
return size() == 1 ? new SingleObjectSinkAdapter(getSinks()[0]) : this;
}
}
}
this.otherSinks.remove((ObjectSinkNode) sink);
if (this.otherSinks.isEmpty()) {
this.otherSinks = null;
}
return size() == 1 ? new SingleObjectSinkAdapter(getSinks()[0]) : this;
}
public ObjectSinkPropagator addObjectSink(ObjectSink sink, int alphaNodeHashingThreshold) {
this.sinks = null; // dirty it, so it'll rebuild on next get
if (sink.getType() == NodeTypeEnums.AlphaNode) {
final AlphaNode alphaNode = (AlphaNode) sink;
final InternalReadAccessor readAccessor = getHashableAccessor(alphaNode);
if (readAccessor != null) {
final int index = readAccessor.getIndex();
final FieldIndex fieldIndex = registerFieldIndex(index, readAccessor);
// DROOLS-678 : prevent null values from being hashed as 0s
final FieldValue value = ((IndexableConstraint) alphaNode.getConstraint()).getField();
if (fieldIndex.getCount() >= this.alphaNodeHashingThreshold
&& this.alphaNodeHashingThreshold != 0
&& !value.isNull()) {
if (!fieldIndex.isHashed()) {
hashSinks(fieldIndex);
}
// no need to check, we know the sink does not exist
this.hashedSinkMap.put(
new HashKey(index, value, fieldIndex.getFieldExtractor()), alphaNode, false);
} else {
if (this.hashableSinks == null) {
this.hashableSinks = new ObjectSinkNodeList();
}
this.hashableSinks.add(alphaNode);
}
return this;
}
}
if (this.otherSinks == null) {
this.otherSinks = new ObjectSinkNodeList();
}
this.otherSinks.add((ObjectSinkNode) sink);
return this;
}
