content: /*
   * 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.postgresql.ast.stmt;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
  import com.alibaba.druid.sql.dialect.postgresql.visitor.PGASTVisitor;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  public class PGDeleteStatement extends SQLDeleteStatement implements PGSQLStatement {
      private boolean returning;
  
      public PGDeleteStatement() {
          super(DbType.postgresql);
      }
  
      public boolean isReturning() {
          return returning;
      }
  
      public void setReturning(boolean returning) {
          this.returning = returning;
      }
  
      public String getAlias() {
          if (tableSource == null) {
              return null;
          }
          return tableSource.getAlias();
      }
  
      public void setAlias(String alias) {
          this.tableSource.setAlias(alias);
      }
  
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor instanceof PGASTVisitor) {
              accept0((PGASTVisitor) visitor);
          } else {
              super.accept0(visitor);
          }
      }
  
      @Override
      public void accept0(PGASTVisitor visitor) {
          if (visitor.visit(this)) {
              acceptChild(visitor, with);
              acceptChild(visitor, tableSource);
              acceptChild(visitor, using);
              acceptChild(visitor, where);
          }
  
          visitor.endVisit(this);
      }
  
      public PGDeleteStatement clone() {
          PGDeleteStatement x = new PGDeleteStatement();
          cloneTo(x);
  
          x.returning = returning;
  
          return x;
      }
  }
  