01: /*
02: * Copyright 2002-2006 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16:
17: package org.springframework.jdbc.datasource.lookup;
18:
19: import javax.sql.DataSource;
20:
21: /**
22: * Strategy interface for looking up DataSources by name.
23: *
24: * <p>Used, for example, to resolve data source names in JPA
25: * <code>persistence.xml</code> files.
26: *
27: * @author Costin Leau
28: * @author Juergen Hoeller
29: * @since 2.0
30: * @see org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager#setDataSourceLookup
31: */
32: public interface DataSourceLookup {
33:
34: /**
35: * Retrieve the DataSource identified by the given name.
36: * @param dataSourceName the name of the DataSource
37: * @return the DataSource (never <code>null</code>)
38: * @throws DataSourceLookupFailureException if the lookup failed
39: */
40: DataSource getDataSource(String dataSourceName)
41: throws DataSourceLookupFailureException;
42:
43: }
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