/**
* Convenience function which enables ==, !=, <, <=, >, >= operators.
*/
public void enableComparisonOperators() {
enableOperator(new EqualsOperator(operations));
enableOperator(new NotEqualsOperator(operations));
enableOperator(new LessThanOperator(operations));
enableOperator(new LessThanEqualsOperator(operations));
enableOperator(new GreaterThanOperator(operations));
enableOperator(new GreaterThanEqualsOperator(operations));