org.apache.kafka.streams.state.KeyValueBytesStoreSupplier Maven / Gradle / Ivy
/*
* 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.state;
import org.apache.kafka.common.utils.Bytes;
/**
* A store supplier that can be used to create one or more {@link KeyValueStore KeyValueStore<Byte, byte[]>} instances of type <Byte, byte[]>.
*
* For any stores implementing the {@link KeyValueStore KeyValueStore<Byte, byte[]>} interface, null value bytes are considered as "not exist". This means:
*
* 1. Null value bytes in put operations should be treated as delete.
* 2. If the key does not exist, get operations should return null value bytes.
*/
public interface KeyValueBytesStoreSupplier extends StoreSupplier> {
}