/*
* This program is free software; you can redistribute it and/or modify it under the terms of
* the GNU General Public License as published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package com.meidusa.amoeba.parser.expression;
/**
* And Expression
* @author <a href=mailto:piratebase@sina.com>Struct chen</a>
*
*/
public class AndExpression extends BaseExpressionList {
public AndExpression(){
}
public AndExpression(Expression node){
super(node);
}
/**
* ���ʽ�Ƿ�ɼ���
*/
@SuppressWarnings("unchecked")
public Comparable evaluate(Object[] parameters) {
for (Expression e : eList) {
if (!((Boolean) e.evaluate(parameters))) {
return Boolean.FALSE;
}
}
return Boolean.TRUE;
}
/**
* ????
*/
protected BaseExpressionList getReverseObject() {
return new OrExpression(null);
}
/**
*
*/
protected void toString(StringBuilder builder) {
this.toString(builder, " AND ");
}
}