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Java Predicate with SQL-like syntax support

There is a newer version: 2.1.2

package org.joo.libra.sql.node;

import org.joo.libra.Predicate;
import org.joo.libra.common.HasValue;
import org.joo.libra.logic.NotPredicate;
import org.joo.libra.sql.antlr.SqlLexer;
import org.joo.libra.text.IsEmptyPredicate;

import lombok.Getter;
import lombok.Setter;

public class EmptyExpressionNode extends UnaryExpressionNode {

	private @Getter @Setter int op;

	@Override
	public Predicate buildPredicate() {
		if (op == SqlLexer.IS_NOT_EMPTY)
			return new NotPredicate(new IsEmptyPredicate((HasValue) getInnerNode()));
		return new IsEmptyPredicate((HasValue) getInnerNode());
	}
}