final AlphaNode alphaNode = sink;
final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();
final LiteralConstraint literalConstraint = (LiteralConstraint) fieldConstraint;
final Evaluator evaluator = literalConstraint.getEvaluator();
if ( evaluator.getOperator() == Operator.EQUAL && index == literalConstraint.getFieldExtractor().getIndex() ) {
final FieldValue value = literalConstraint.getField();
if ( this.hashableSinks == null ) {
this.hashableSinks = new ObjectSinkNodeList();
}
this.hashableSinks.add( sink );
this.hashedSinkMap.remove( new HashKey( index,