/**
 * Alipay.com Inc.
 * Copyright (c) 2004-2012 All Rights Reserved.
 */
package com.alipay.zdal.parser.sql.ast.expr;

import com.alipay.zdal.parser.sql.visitor.SQLASTVisitor;

/**
 * 
 * @author xiaoqing.zhouxq
 * @version $Id: SQLIntegerExpr.java, v 0.1 2012-11-17 ����3:17:46 xiaoqing.zhouxq Exp $
 */
public class SQLIntegerExpr extends SQLNumericLiteralExpr {

    private static final long serialVersionUID = 1L;

    private Number            number;

    public SQLIntegerExpr(Number number) {

        this.number = number;
    }

    public SQLIntegerExpr() {

    }

    public Number getNumber() {
        return this.number;
    }

    public void setNumber(Number number) {
        this.number = number;
    }

    public void output(StringBuffer buf) {
        buf.append(this.number);
    }

    protected void accept0(SQLASTVisitor visitor) {
        visitor.visit(this);

        visitor.endVisit(this);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((number == null) ? 0 : number.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        SQLIntegerExpr other = (SQLIntegerExpr) obj;
        if (number == null) {
            if (other.number != null) {
                return false;
            }
        } else if (!number.equals(other.number)) {
            return false;
        }
        return true;
    }
}