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.backend.impl;
  
  import io.ray.streaming.state.backend.AbstractStateBackend;
  import io.ray.streaming.state.serialization.KeyMapStoreSerializer;
  import io.ray.streaming.state.store.KeyMapStore;
  import io.ray.streaming.state.store.KeyValueStore;
  import io.ray.streaming.state.store.impl.MemoryKeyMapStore;
  import io.ray.streaming.state.store.impl.MemoryKeyValueStore;
  import java.util.Map;
  
  /** MemoryStateBackend. Supporting memory store. */
  public class MemoryStateBackend extends AbstractStateBackend {
  
    public MemoryStateBackend(Map<String, String> config) {
      super(config);
    }
  
    @Override
    public <K, V> KeyValueStore<K, V> getKeyValueStore(String tableName) {
      return new MemoryKeyValueStore<>();
    }
  
    @Override
    public <K, S, T> KeyMapStore<K, S, T> getKeyMapStore(String tableName) {
      return new MemoryKeyMapStore<>();
    }
  
    @Override
    public <K, S, T> KeyMapStore<K, S, T> getKeyMapStore(
        String tableName, KeyMapStoreSerializer keyMapStoreSerializer) {
      return new MemoryKeyMapStore<>();
    }
  }
  