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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.dialect.mysql.ast.statement;

import com.sharksharding.sql.ast.SQLName;
import com.sharksharding.sql.ast.statement.SQLAlterTableAddColumn;
import com.sharksharding.sql.dialect.mysql.ast.MySqlObject;
import com.sharksharding.sql.dialect.mysql.visitor.MySqlASTVisitor;
import com.sharksharding.sql.visitor.SQLASTVisitor;

public class MySqlAlterTableAddColumn extends SQLAlterTableAddColumn implements MySqlObject {

    private SQLName firstColumn;
    private SQLName afterColumn;

    private boolean first;

    public SQLName getFirstColumn() {
        return firstColumn;
    }

    public void setFirstColumn(SQLName first) {
        this.firstColumn = first;
    }

    public boolean isFirst() {
        return first;
    }

    public void setFirst(boolean first) {
        this.first = first;
    }

    public SQLName getAfterColumn() {
        return afterColumn;
    }

    public void setAfterColumn(SQLName after) {
        this.afterColumn = after;
    }

    @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, getColumns());

            acceptChild(visitor, firstColumn);
            acceptChild(visitor, afterColumn);
        }
        visitor.endVisit(this);
    }
}