/*******************************************************************************
* Copyright 2010 Cees De Groot, Alex Boisvert, Jan Kotek
*
* Licensed 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 de.mxro.thrd.jdbm2V22;
/**
* Primary HashMap which persist data in storage.
* Behavior is very similar to <code>java.util.HashMap/code>, this map also uses hash index to lookup keys
* But it adds some methods to create secondary views
* <p>
* Performance note: keys and values are stored as part of index nodes.
* They are deserialized on each index lookup.
* This may lead to performance degradation and OutOfMemoryExceptions.
* If your values are big (>500 bytes) you may consider using <code>PrimaryStoreMap</code>
* or <code<StoreReference</code> to minimalize size of index.
*
* @author Jan Kotek
*
* @param <K> key type
* @param <V> value type
*/
public interface PrimaryHashMap<K,V> extends PrimaryMap<K,V>{
}