studio.raptor.sqlparser.ast.statement.SQLSetStatement Maven / Gradle / Ivy

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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.statement;

import java.util.ArrayList;
import java.util.List;
import studio.raptor.sqlparser.ast.SQLCommentHint;
import studio.raptor.sqlparser.ast.SQLExpr;
import studio.raptor.sqlparser.ast.SQLStatementImpl;
import studio.raptor.sqlparser.visitor.SQLASTVisitor;

public class SQLSetStatement extends SQLStatementImpl {

  private List items = new ArrayList();

  private List hints;

  public SQLSetStatement() {
  }

  public SQLSetStatement(String dbType) {
    super(dbType);
  }

  public SQLSetStatement(SQLExpr target, SQLExpr value) {
    this(target, value, null);
  }

  public SQLSetStatement(SQLExpr target, SQLExpr value, String dbType) {
    super(dbType);
    this.items.add(new SQLAssignItem(target, value));
  }

  public List getItems() {
    return items;
  }

  public void setItems(List items) {
    this.items = items;
  }

  public List getHints() {
    return hints;
  }

  public void setHints(List hints) {
    this.hints = hints;
  }

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

  public void output(StringBuffer buf) {
    buf.append("SET ");

    for (int i = 0; i < items.size(); ++i) {
      if (i != 0) {
        buf.append(", ");
      }

      SQLAssignItem item = items.get(i);
      item.output(buf);
    }
  }
}