/*
 * Copyright 1999-2017 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.alibaba.druid.sql.dialect.mysql.ast.statement;

import com.alibaba.druid.sql.ast.SQLHint;
import com.alibaba.druid.sql.ast.statement.SQLTableSourceImpl;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;

// just for alibaba mysql
public class MySqlUpdateTableSource extends SQLTableSourceImpl {
    private MySqlUpdateStatement update;

    public MySqlUpdateTableSource(MySqlUpdateStatement update) {
        this.update = update;
    }

    @Override
    protected void accept0(SQLASTVisitor visitor) {
        if (visitor instanceof MySqlASTVisitor) {
            accept0((MySqlASTVisitor) visitor);
        } else {
            throw new IllegalArgumentException("not support visitor type : " + visitor.getClass().getName());
        }
    }

    public void accept0(MySqlASTVisitor visitor) {
        if (visitor.visit(this)) {
            acceptChild(visitor, update);
        }
        visitor.endVisit(this);
    }

    public MySqlUpdateStatement getUpdate() {
        return update;
    }

    public void setUpdate(MySqlUpdateStatement update) {
        this.update = update;
    }

    @Override
    public MySqlUpdateTableSource clone() {
        MySqlUpdateTableSource x = new MySqlUpdateTableSource(this.update);

        x.setAlias(this.alias);

        if (this.flashback != null) {
            x.setFlashback(this.flashback.clone());
        }

        if (this.hints != null) {
            for (SQLHint e : this.hints) {
                SQLHint e2 = e.clone();
                e2.setParent(x);
                x.getHints().add(e2);
            }
        }

        return x;
    }

}
