001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.jdbc.datasource.lookup; 018 019import javax.sql.DataSource; 020 021/** 022 * Strategy interface for looking up DataSources by name. 023 * 024 * <p>Used, for example, to resolve data source names in JPA 025 * {@code persistence.xml} files. 026 * 027 * @author Costin Leau 028 * @author Juergen Hoeller 029 * @since 2.0 030 * @see org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager#setDataSourceLookup 031 */ 032public interface DataSourceLookup { 033 034 /** 035 * Retrieve the DataSource identified by the given name. 036 * @param dataSourceName the name of the DataSource 037 * @return the DataSource (never {@code null}) 038 * @throws DataSourceLookupFailureException if the lookup failed 039 */ 040 DataSource getDataSource(String dataSourceName) throws DataSourceLookupFailureException; 041 042}