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 org.apache.kafka.streams.kstream.internals;
  
  import org.apache.kafka.streams.processor.api.ProcessorContext;
  import org.apache.kafka.streams.state.ValueAndTimestamp;
  
  public interface KTableValueGetter<K, V> {
  
      void init(ProcessorContext<?, ?> context);
  
      ValueAndTimestamp<V> get(K key);
  
      /**
       * Returns the latest record version, associated with the provided key, with timestamp
       * not exceeding the provided timestamp bound. This method may only be called if
       * {@link #isVersioned()} is true.
       */
      default ValueAndTimestamp<V> get(K key, long asOfTimestamp) {
          throw new UnsupportedOperationException("get(key, timestamp) is only supported for versioned stores");
      }
  
      /**
       * @return whether this value getter supports multiple record versions for the same key.
       *         If true, then {@link #get(Object, long)} must be implemented. If not, then
       *         {@link #get(Object, long)} must not be called.
       */
      boolean isVersioned();
  
      default void close() {}
  }
  