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.ast;
  
  import com.alibaba.druid.sql.dialect.oracle.ast.OracleSegmentAttributesImpl;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  import java.util.ArrayList;
  import java.util.List;
  
  public class SQLPartitionValue extends OracleSegmentAttributesImpl {
      protected Operator operator;
      protected final List<SQLExpr> items = new ArrayList<SQLExpr>();
  
      public SQLPartitionValue() {
      }
  
      public SQLPartitionValue(Operator operator) {
          super();
          this.operator = operator;
      }
  
      public List<SQLExpr> getItems() {
          return items;
      }
  
      public void addItem(SQLExpr item) {
          if (item != null) {
              item.setParent(this);
          }
          this.items.add(item);
      }
  
      public Operator getOperator() {
          return operator;
      }
  
      public enum Operator {
          LessThan,
          LessThanEqual,
          Equal,
          In,
          List,
          StartEndEvery,
          FixedRange
      }
  
      @Override
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor.visit(this)) {
              acceptChild(visitor, getItems());
          }
          visitor.endVisit(this);
      }
  
      public SQLPartitionValue clone() {
          SQLPartitionValue x = new SQLPartitionValue(operator);
  
          for (SQLExpr item : items) {
              SQLExpr item2 = item.clone();
              item2.setParent(x);
              x.items.add(item2);
          }
  
          return x;
      }
  }
  