/*
* 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.test;
import org.apache.kafka.streams.processor.ProcessorContext;
import org.apache.kafka.streams.processor.StateStore;
import org.apache.kafka.streams.state.KeyValueIterator;
import org.apache.kafka.streams.state.ReadOnlyKeyValueStore;
public class NoOpReadOnlyStore<K, V>
implements ReadOnlyKeyValueStore<K, V>, StateStore {
private final String name;
private boolean open = true;
public boolean initialized;
public boolean flushed;
public NoOpReadOnlyStore() {
this("");
}
public NoOpReadOnlyStore(final String name) {
this.name = name;
}
@Override
public V get(final K key) {
return null;
}
@Override
public KeyValueIterator<K, V> range(final K from, final K to) {
return null;
}
@Override
public KeyValueIterator<K, V> all() {
return null;
}
@Override
public long approximateNumEntries() {
return 0L;
}
@Override
public String name() {
return name;
}
@Override
public void init(final ProcessorContext context, final StateStore root) {
this.initialized = true;
}
@Override
public void flush() {
flushed = true;
}
@Override
public void close() {
open = false;
}
@Override
public boolean persistent() {
return false;
}
@Override
public boolean isOpen() {
return open;
}
}