spring DataSourceLookup 源码
spring DataSourceLookup 代码
文件路径：/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/lookup/DataSourceLookup.java
/*
* Copyright 2002-2016 the original author or authors.
*
* 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
*
* https://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 org.springframework.jdbc.datasource.lookup;
import javax.sql.DataSource;
/**
* Strategy interface for looking up DataSources by name.
*
* <p>Used, for example, to resolve data source names in JPA
* {@code persistence.xml} files.
*
* @author Costin Leau
* @author Juergen Hoeller
* @since 2.0
* @see org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager#setDataSourceLookup
*/
@FunctionalInterface
public interface DataSourceLookup {
/**
* Retrieve the DataSource identified by the given name.
* @param dataSourceName the name of the DataSource
* @return the DataSource (never {@code null})
* @throws DataSourceLookupFailureException if the lookup failed
*/
DataSource getDataSource(String dataSourceName) throws DataSourceLookupFailureException;
}
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