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/*
 * Copyright 1999-2101 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sharksharding.sql.ast.expr;

import java.util.ArrayList;
import java.util.List;

import com.sharksharding.sql.ast.SQLExpr;
import com.sharksharding.sql.ast.SQLExprImpl;
import com.sharksharding.sql.visitor.SQLASTVisitor;

public class SQLArrayExpr extends SQLExprImpl {

    private SQLExpr       expr;

    private List values = new ArrayList();

    public SQLExpr getExpr() {
        return expr;
    }

    public void setExpr(SQLExpr expr) {
        this.expr = expr;
    }

    public List getValues() {
        return values;
    }

    public void setValues(List values) {
        this.values = values;
    }

    @Override
    protected void accept0(SQLASTVisitor visitor) {
        if (visitor.visit(this)) {
            acceptChild(visitor, expr);
            acceptChild(visitor, values);
        }
        visitor.endVisit(this);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((expr == null) ? 0 : expr.hashCode());
        result = prime * result + ((values == null) ? 0 : values.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;
        SQLArrayExpr other = (SQLArrayExpr) obj;
        if (expr == null) {
            if (other.expr != null) return false;
        } else if (!expr.equals(other.expr)) return false;
        if (values == null) {
            if (other.values != null) return false;
        } else if (!values.equals(other.values)) return false;
        return true;
    }



}