001    package org.odbms;
002    
003    /* Copyright 2002-2005 The Apache Software Foundation
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    /**
019     * database engine interface.
020     * <br><br>The <code>ObjectContainer</code> interface provides all functions
021     * to store, retrieve and delete objects and to change object state.
022     */
023    public interface ObjectContainer
024    {
025    
026        /**
027         * factory method to create a new <a href="Query.html">
028         * <code>Query</code></a> object.
029         * @return a new Query object
030         */
031        public Query query();
032    }