/* * Copyright 2006 Amazon Technologies, Inc. or its affiliates. * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks * of Amazon Technologies, Inc. or its affiliates. All rights reserved. * * 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.amazon.carbonado.layout; import com.amazon.carbonado.FetchException; import com.amazon.carbonado.FetchNoneException; import com.amazon.carbonado.PersistException; import com.amazon.carbonado.Storable; import com.amazon.carbonado.capability.Capability; /** * Capability to get layout information on any storable generation. * * @author Brian S O'Neill */ public interface LayoutCapability extends Capability { /** * Returns the layout matching the current definition of the given type. * * @throws PersistException if type represents a new generation, but * persisting this information failed */ public Layout layoutFor(Class type) throws FetchException, PersistException; /** * Returns the layout for a particular generation of the given type. * * @param generation desired generation * @throws FetchNoneException if generation not found */ public Layout layoutFor(Class type, int generation) throws FetchException, FetchNoneException; }