Java Code Examples for java.sql.Connection.getSchema()

The following are Jave code examples for showing how to use getSchema() of the java.sql.Connection class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
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Example 1
Project: calcite-avatica   File: RemoteMetaTest.java   View Source Code Vote up 5 votes
@Test public void testRemoteConnectionProperties() throws Exception {
  ConnectionSpec.getDatabaseLock().lock();
  try (AvaticaConnection conn = (AvaticaConnection) DriverManager.getConnection(url)) {
    String id = conn.id;
    final Map<String, ConnectionPropertiesImpl> m = ((RemoteMeta) getMeta(conn)).propsMap;
    assertFalse("remote connection map should start ignorant", m.containsKey(id));
    // force creating a connection object on the remote side.
    try (final Statement stmt = conn.createStatement()) {
      assertTrue("creating a statement starts a local object.", m.containsKey(id));
      assertTrue(stmt.execute("select count(1) from EMP"));
    }
    Connection remoteConn = getConnection(FullyRemoteJdbcMetaFactory.getInstance(), id);
    final boolean defaultRO = remoteConn.isReadOnly();
    final boolean defaultAutoCommit = remoteConn.getAutoCommit();
    final String defaultCatalog = remoteConn.getCatalog();
    final String defaultSchema = remoteConn.getSchema();
    conn.setReadOnly(!defaultRO);
    assertTrue("local changes dirty local state", m.get(id).isDirty());
    assertEquals("remote connection has not been touched", defaultRO, remoteConn.isReadOnly());
    conn.setAutoCommit(!defaultAutoCommit);
    assertEquals("remote connection has not been touched",
        defaultAutoCommit, remoteConn.getAutoCommit());

    // further interaction with the connection will force a sync
    try (final Statement stmt = conn.createStatement()) {
      assertEquals(!defaultAutoCommit, remoteConn.getAutoCommit());
      assertFalse("local values should be clean", m.get(id).isDirty());
    }
  } finally {
    ConnectionSpec.getDatabaseLock().unlock();
  }
}
 
Example 2
Project: calcite-avatica   File: AlternatingRemoteMetaTest.java   View Source Code Vote up 5 votes
@Test public void testRemoteConnectionProperties() throws Exception {
  ConnectionSpec.getDatabaseLock().lock();
  try (AvaticaConnection conn = (AvaticaConnection) DriverManager.getConnection(url)) {
    String id = conn.id;
    final Map<String, ConnectionPropertiesImpl> m = ((RemoteMeta) getMeta(conn)).propsMap;
    assertFalse("remote connection map should start ignorant", m.containsKey(id));
    // force creating a connection object on the remote side.
    try (final Statement stmt = conn.createStatement()) {
      assertTrue("creating a statement starts a local object.", m.containsKey(id));
      assertTrue(stmt.execute("select count(1) from EMP"));
    }
    Connection remoteConn = getConnection(FullyRemoteJdbcMetaFactory.getInstance(), id);
    final boolean defaultRO = remoteConn.isReadOnly();
    final boolean defaultAutoCommit = remoteConn.getAutoCommit();
    final String defaultCatalog = remoteConn.getCatalog();
    final String defaultSchema = remoteConn.getSchema();
    conn.setReadOnly(!defaultRO);
    assertTrue("local changes dirty local state", m.get(id).isDirty());
    assertEquals("remote connection has not been touched", defaultRO, remoteConn.isReadOnly());
    conn.setAutoCommit(!defaultAutoCommit);
    assertEquals("remote connection has not been touched",
        defaultAutoCommit, remoteConn.getAutoCommit());

    // further interaction with the connection will force a sync
    try (final Statement stmt = conn.createStatement()) {
      assertEquals(!defaultAutoCommit, remoteConn.getAutoCommit());
      assertFalse("local values should be clean", m.get(id).isDirty());
    }
  } finally {
    ConnectionSpec.getDatabaseLock().unlock();
  }
}
 
Example 3
Project: calcite-avatica   File: ConnectionPropertiesImpl.java   View Source Code Vote up 4 votes
public ConnectionPropertiesImpl(Connection conn) throws SQLException {
  this(conn.getAutoCommit(), conn.isReadOnly(), conn.getTransactionIsolation(),
      conn.getCatalog(), conn.getSchema());
}
 
Example 4
Project: cereebro   File: DataSourceRelationshipDetector.java   View Source Code Vote up 3 votes
/**
 * Extract a DataSource name, using a default one if necessary.
 * 
 * @param connection
 *            JDBC DataSource Connection.
 * @return a non-null DataSource name.
 * @throws SQLException
 *             if something goes wrong while extracting component info.
 */
protected String extractName(Connection connection) throws SQLException {
    String name = connection.getSchema();
    if (name == null) {
        name = connection.getCatalog();
    }
    return Optional.ofNullable(name).orElse(defaultName);
}