// Copyright 2010 Google Inc.
//
// 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 com.google.gwtorm.nosql.heap;
import com.google.gwtorm.client.OrmException;
import com.google.gwtorm.client.Schema;
/**
* Toy in-memory implementation of a NoSQL database.
* <p>
* Implements a simple NoSQL database with a standard {@link java.util.TreeMap}
* held inside of this JVM process. All operations occur on the TreeMap, with no
* durability across database restarts. Therefore this implementation is only
* suitable for simple tests.
*
* @param <T> type of the application schema.
* @see FileDatabase
*/
public class MemoryDatabase<T extends Schema> extends
TreeMapDatabase<T, TreeMapSchema, TreeMapAccess> {
/**
* Create the database and implement the application's schema interface.
*
* @param schema the application schema this database will open.
* @throws OrmException the schema cannot be queried.
*/
public MemoryDatabase(final Class<T> schema) throws OrmException {
super(TreeMapSchema.class, TreeMapAccess.class, schema);
}
}
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