content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 io.ray.streaming.state.keystate.desc;
  
  import static io.ray.streaming.state.config.ConfigKey.DELIMITER;
  
  import io.ray.streaming.state.keystate.state.ListState;
  
  /** ListStateDescriptor. */
  public class ListStateDescriptor<T> extends AbstractStateDescriptor<ListState<T>, T> {
  
    private final boolean isOperatorList;
    private int index;
    private int partitionNum;
  
    private ListStateDescriptor(String name, Class<T> type, boolean isOperatorList) {
      super(name, type);
      this.isOperatorList = isOperatorList;
    }
  
    public static <T> ListStateDescriptor<T> build(String name, Class<T> type) {
      return build(name, type, false);
    }
  
    public static <T> ListStateDescriptor<T> build(
        String name, Class<T> type, boolean isOperatorList) {
      return new ListStateDescriptor<>(name, type, isOperatorList);
    }
  
    public boolean isOperatorList() {
      return isOperatorList;
    }
  
    public int getIndex() {
      return index;
    }
  
    public void setIndex(int index) {
      this.index = index;
    }
  
    public int getPartitionNumber() {
      return partitionNum;
    }
  
    public void setPartitionNumber(int number) {
      this.partitionNum = number;
    }
  
    @Override
    public StateType getStateType() {
      return StateType.LIST;
    }
  
    @Override
    public String getIdentify() {
      if (isOperatorList) {
        return String.format(
            "%s%s%d%s%d", super.getIdentify(), DELIMITER, partitionNum, DELIMITER, index);
      } else {
        return super.getIdentify();
      }
    }
  }
  