001    // Copyright 2006, 2008, 2011 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    // http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.ioc;
016    
017    /**
018     * Interface used to encapsulate any strategy used defer the creation of some object until just as needed.
019     */
020    public interface ObjectCreator<T>
021    {
022        /**
023         * Create and return the object. In some limited circumstances, the implementation may cache the result, returning
024         * the same object for repeated calls.
025         */
026        T createObject();
027    }