/*
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.drill.exec.store.sys;
import org.apache.drill.exec.store.sys.store.DataChangeVersion;
import java.util.Iterator;
import java.util.Map;
public abstract class BasePersistentStore<V> implements PersistentStore<V> {
@Override
public Iterator<Map.Entry<String, V>> getAll() {
return getRange(0, Integer.MAX_VALUE);
}
/** By default contains with version will behave the same way as without version.
* Override this method to add version support. */
public boolean contains(String key, DataChangeVersion version) {
return contains(key);
}
/** By default get with version will behave the same way as without version.
* Override this method to add version support. */
@Override
public V get(String key, DataChangeVersion version) {
return get(key);
}
/** By default put with version will behave the same way as without version.
* Override this method to add version support. */
@Override
public void put(String key, V value, DataChangeVersion version) {
put(key, value);
}
}