/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 **/
package lucee.runtime.sql.exp.op;

import lucee.runtime.sql.exp.Expression;
import lucee.runtime.sql.exp.ExpressionSupport;

public class Operation3 extends ExpressionSupport implements Operation {

	private Expression exp;
	private Expression left;
	private Expression right;
	private int operator;


	public Operation3(Expression exp, Expression left, Expression right, int operator) {
		this.exp=exp;
		this.left=left;
		this.right=right;
		this.operator=operator;
	}

	@Override
	public String toString(boolean noAlias) {
		// like escape
		if(Operation.OPERATION3_LIKE==operator){
			if(!hasAlias() || noAlias) {
				return exp.toString(true)+" like "+
						left.toString(true)+" escape "+
						right.toString(true);
			}
			return toString(true)+" as "+getAlias();
		}
		// between
		if(!hasAlias() || noAlias) {
			return exp.toString(true)+" between "+left.toString(true)+" and "+right.toString(true);
		}
		return toString(true)+" as "+getAlias();
	}

	/**
	 * @return the exp
	 */
	public Expression getExp() {
		return exp;
	}

	/**
	 * @return the left
	 */
	public Expression getLeft() {
		return left;
	}

	/**
	 * @return the operator
	 */
	public int getOperator() {
		return operator;
	}

	/**
	 * @return the right
	 */
	public Expression getRight() {
		return right;
	}
}