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/*
* Fabric3
* Copyright (c) 2009-2015 Metaform Systems
*
* 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.
* Portions originally based on Apache Tuscany 2007
* licensed under the Apache 2.0 license.
*/
package org.fabric3.jpa.override;
import java.net.URI;
import org.fabric3.jpa.api.PersistenceOverrides;
/**
* Manages persistence context overrides.
*/
public interface OverrideRegistry {
/**
* Registers a set of persistence overrides contained by a given contribution. The overrides will be held until the contribution is uninstalled.
*
* @param contributionURI the contribution URI
* @param overrides the overrides
* @throws DuplicateOverridesException if a set of overrides for the persistence context are already registered
*/
void register(URI contributionURI, PersistenceOverrides overrides) throws DuplicateOverridesException;
/**
* Resolves the overrides for the persistence context or null if none are registered.
*
* @param unitName the persistence context name
* @return the overrides for the persistence context or null if none are registered
*/
PersistenceOverrides resolve(String unitName);
}