Example usage for org.springframework.jdbc.datasource DelegatingDataSource DelegatingDataSource

Introduction

In this page you can find the example usage for org.springframework.jdbc.datasource DelegatingDataSource DelegatingDataSource.

Prototype

public DelegatingDataSource() 

Source Link

Document

Create a new DelegatingDataSource.

Usage

From source file:com.jolbox.bonecp.spring.TestDynamicDataSourceProxy.java

/**
 * Test method for {@link com.jolbox.bonecp.spring.DynamicDataSourceProxy#switchDataSource(com.jolbox.bonecp.BoneCPConfig)}.
 * @throws SQLException //from   www  .  j  ava  2s .  com
 * @throws ClassNotFoundException 
 */
@Test
public void testSwitchDataSource() throws SQLException, ClassNotFoundException {

    BoneCPDataSource mockDataSource = createNiceMock(BoneCPDataSource.class);
    DynamicDataSourceProxy ddsp = new DynamicDataSourceProxy();
    // Test #1: Check for correct instance.
    ddsp.setTargetDataSource(new DelegatingDataSource());
    try {
        ddsp.switchDataSource(null);
        fail("Should throw an exception");
    } catch (SQLException e) {
        // do nothing
    }

    // Test #2: Given a good config, should initialize pool and switch datasource to it
    BoneCPConfig config = new BoneCPConfig();
    config.setJdbcUrl("jdbc:mock");
    config.setUsername("sa");
    config.setPassword("");
    config.setMinConnectionsPerPartition(2);
    config.setMaxConnectionsPerPartition(2);
    config.setPartitionCount(1);

    ddsp = new DynamicDataSourceProxy(mockDataSource);

    // Old datasource should be closed.
    mockDataSource.close();
    expectLastCall().once();
    replay(mockDataSource);
    ddsp.switchDataSource(config);
    // and a new datasource should be in place
    assertNotSame(mockDataSource, ddsp.getTargetDataSource());
    verify(mockDataSource);
}

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