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/*
 * 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 studio.raptor.sqlparser.ast;

import studio.raptor.sqlparser.visitor.SQLASTVisitor;

public class SQLPartitionByHash extends SQLPartitionBy {

  protected SQLExpr expr;

  // for aliyun ads
  protected boolean key;

  public SQLExpr getExpr() {
    return expr;
  }

  public void setExpr(SQLExpr expr) {
    if (expr != null) {
      expr.setParent(this);
    }
    this.expr = expr;
  }

  public boolean isKey() {
    return key;
  }

  public void setKey(boolean key) {
    this.key = key;
  }

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

}