Declaration declr = new Declaration(leftVariableName,
extractor,
pattern);
try {
betaConstraints = new SingleBetaConstraints(reteTesterHelper.getBoundVariableConstraint(rightType,
constraintFieldName,
declr,
constraintOperator), buildContext.getKnowledgeBase().getConfiguration());
} catch (IntrospectionException e) {
throw new RuntimeException(e);