Examples with JdbcStatementBackwardsCompat org.h2.jdbc.JdbcStatementBackwardsCompat used on opensource projects

Example 1 with JdbcStatementBackwardsCompat

use of org.h2.jdbc.JdbcStatementBackwardsCompat in project h2database by h2database.

the class TestStatement method testStatement.

private void testStatement() throws SQLException {
    Statement stat = conn.createStatement();
    assertEquals(ResultSet.HOLD_CURSORS_OVER_COMMIT, conn.getHoldability());
    conn.setHoldability(ResultSet.CLOSE_CURSORS_AT_COMMIT);
    assertEquals(ResultSet.CLOSE_CURSORS_AT_COMMIT, conn.getHoldability());
    assertFalse(stat.isPoolable());
    stat.setPoolable(true);
    assertFalse(stat.isPoolable());
    // ignored
    stat.setCursorName("x");
    // fixed return value
    assertEquals(stat.getFetchDirection(), ResultSet.FETCH_FORWARD);
    // ignored
    stat.setFetchDirection(ResultSet.FETCH_REVERSE);
    // ignored
    stat.setMaxFieldSize(100);
    assertEquals(SysProperties.SERVER_RESULT_SET_FETCH_SIZE, stat.getFetchSize());
    stat.setFetchSize(10);
    assertEquals(10, stat.getFetchSize());
    stat.setFetchSize(0);
    assertEquals(SysProperties.SERVER_RESULT_SET_FETCH_SIZE, stat.getFetchSize());
    assertEquals(ResultSet.TYPE_FORWARD_ONLY, stat.getResultSetType());
    Statement stat2 = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY, ResultSet.HOLD_CURSORS_OVER_COMMIT);
    assertEquals(ResultSet.TYPE_SCROLL_SENSITIVE, stat2.getResultSetType());
    assertEquals(ResultSet.HOLD_CURSORS_OVER_COMMIT, stat2.getResultSetHoldability());
    assertEquals(ResultSet.CONCUR_READ_ONLY, stat2.getResultSetConcurrency());
    assertEquals(0, stat.getMaxFieldSize());
    assertFalse(((JdbcStatement) stat2).isClosed());
    stat2.close();
    assertTrue(((JdbcStatement) stat2).isClosed());
    ResultSet rs;
    int count;
    long largeCount;
    boolean result;
    stat.execute("CREATE TABLE TEST(ID INT)");
    stat.execute("SELECT * FROM TEST");
    stat.execute("DROP TABLE TEST");
    conn.getTypeMap();
    // this method should not throw an exception - if not supported, this
    // calls are ignored
    assertEquals(ResultSet.HOLD_CURSORS_OVER_COMMIT, stat.getResultSetHoldability());
    assertEquals(ResultSet.CONCUR_READ_ONLY, stat.getResultSetConcurrency());
    stat.cancel();
    stat.setQueryTimeout(10);
    assertTrue(stat.getQueryTimeout() == 10);
    stat.setQueryTimeout(0);
    assertTrue(stat.getQueryTimeout() == 0);
    assertThrows(ErrorCode.INVALID_VALUE_2, stat).setQueryTimeout(-1);
    assertTrue(stat.getQueryTimeout() == 0);
    trace("executeUpdate");
    count = stat.executeUpdate("CREATE TABLE TEST(ID INT PRIMARY KEY,VALUE VARCHAR(255))");
    assertEquals(0, count);
    count = stat.executeUpdate("INSERT INTO TEST VALUES(1,'Hello')");
    assertEquals(1, count);
    count = stat.executeUpdate("INSERT INTO TEST(VALUE,ID) VALUES('JDBC',2)");
    assertEquals(1, count);
    count = stat.executeUpdate("UPDATE TEST SET VALUE='LDBC' WHERE ID=2 OR ID=1");
    assertEquals(2, count);
    count = stat.executeUpdate("UPDATE TEST SET VALUE='\\LDBC\\' WHERE VALUE LIKE 'LDBC' ");
    assertEquals(2, count);
    count = stat.executeUpdate("UPDATE TEST SET VALUE='LDBC' WHERE VALUE LIKE '\\\\LDBC\\\\'");
    trace("count:" + count);
    assertEquals(2, count);
    count = stat.executeUpdate("DELETE FROM TEST WHERE ID=-1");
    assertEquals(0, count);
    count = stat.executeUpdate("DELETE FROM TEST WHERE ID=2");
    assertEquals(1, count);
    JdbcStatementBackwardsCompat statBC = (JdbcStatementBackwardsCompat) stat;
    largeCount = statBC.executeLargeUpdate("DELETE FROM TEST WHERE ID=-1");
    assertEquals(0, largeCount);
    assertEquals(0, statBC.getLargeUpdateCount());
    largeCount = statBC.executeLargeUpdate("INSERT INTO TEST(VALUE,ID) VALUES('JDBC',2)");
    assertEquals(1, largeCount);
    assertEquals(1, statBC.getLargeUpdateCount());
    largeCount = statBC.executeLargeUpdate("DELETE FROM TEST WHERE ID=2");
    assertEquals(1, largeCount);
    assertEquals(1, statBC.getLargeUpdateCount());
    assertThrows(ErrorCode.METHOD_NOT_ALLOWED_FOR_QUERY, stat).executeUpdate("SELECT * FROM TEST");
    count = stat.executeUpdate("DROP TABLE TEST");
    assertTrue(count == 0);
    trace("execute");
    result = stat.execute("CREATE TABLE TEST(ID INT PRIMARY KEY,VALUE VARCHAR(255))");
    assertFalse(result);
    result = stat.execute("INSERT INTO TEST VALUES(1,'Hello')");
    assertFalse(result);
    result = stat.execute("INSERT INTO TEST(VALUE,ID) VALUES('JDBC',2)");
    assertFalse(result);
    result = stat.execute("UPDATE TEST SET VALUE='LDBC' WHERE ID=2");
    assertFalse(result);
    result = stat.execute("DELETE FROM TEST WHERE ID=3");
    assertFalse(result);
    result = stat.execute("SELECT * FROM TEST");
    assertTrue(result);
    result = stat.execute("DROP TABLE TEST");
    assertFalse(result);
    assertThrows(ErrorCode.METHOD_ONLY_ALLOWED_FOR_QUERY, stat).executeQuery("CREATE TABLE TEST(ID INT PRIMARY KEY,VALUE VARCHAR(255))");
    stat.execute("CREATE TABLE TEST(ID INT PRIMARY KEY,VALUE VARCHAR(255))");
    assertThrows(ErrorCode.METHOD_ONLY_ALLOWED_FOR_QUERY, stat).executeQuery("INSERT INTO TEST VALUES(1,'Hello')");
    assertThrows(ErrorCode.METHOD_ONLY_ALLOWED_FOR_QUERY, stat).executeQuery("UPDATE TEST SET VALUE='LDBC' WHERE ID=2");
    assertThrows(ErrorCode.METHOD_ONLY_ALLOWED_FOR_QUERY, stat).executeQuery("DELETE FROM TEST WHERE ID=3");
    stat.executeQuery("SELECT * FROM TEST");
    assertThrows(ErrorCode.METHOD_ONLY_ALLOWED_FOR_QUERY, stat).executeQuery("DROP TABLE TEST");
    // getMoreResults
    rs = stat.executeQuery("SELECT * FROM TEST");
    assertFalse(stat.getMoreResults());
    assertThrows(ErrorCode.OBJECT_CLOSED, rs).next();
    assertTrue(stat.getUpdateCount() == -1);
    count = stat.executeUpdate("DELETE FROM TEST");
    assertFalse(stat.getMoreResults());
    assertTrue(stat.getUpdateCount() == -1);
    stat.execute("DROP TABLE TEST");
    stat.executeUpdate("DROP TABLE IF EXISTS TEST");
    assertNull(stat.getWarnings());
    stat.clearWarnings();
    assertNull(stat.getWarnings());
    assertTrue(conn == stat.getConnection());
    assertEquals("SOME_ID", statBC.enquoteIdentifier("SOME_ID", false));
    assertEquals("\"SOME ID\"", statBC.enquoteIdentifier("SOME ID", false));
    assertEquals("\"SOME_ID\"", statBC.enquoteIdentifier("SOME_ID", true));
    assertEquals("\"FROM\"", statBC.enquoteIdentifier("FROM", false));
    assertEquals("\"Test\"", statBC.enquoteIdentifier("Test", false));
    assertEquals("\"TODAY\"", statBC.enquoteIdentifier("TODAY", false));
    assertTrue(statBC.isSimpleIdentifier("SOME_ID"));
    assertFalse(statBC.isSimpleIdentifier("SOME ID"));
    assertFalse(statBC.isSimpleIdentifier("FROM"));
    assertFalse(statBC.isSimpleIdentifier("Test"));
    assertFalse(statBC.isSimpleIdentifier("TODAY"));
    stat.close();
}

Example 2 with JdbcStatementBackwardsCompat

use of org.h2.jdbc.JdbcStatementBackwardsCompat in project h2database by h2database.

the class TestStatement method testPreparedStatement.

private void testPreparedStatement() throws SQLException {
    Statement stat = conn.createStatement();
    stat.execute("create table test(id int primary key, name varchar(255))");
    stat.execute("insert into test values(1, 'Hello')");
    stat.execute("insert into test values(2, 'World')");
    PreparedStatement ps = conn.prepareStatement("select name from test where id in (select id from test where name REGEXP ?)");
    ps.setString(1, "Hello");
    ResultSet rs = ps.executeQuery();
    assertTrue(rs.next());
    assertEquals("Hello", rs.getString("name"));
    assertFalse(rs.next());
    ps.setString(1, "World");
    rs = ps.executeQuery();
    assertTrue(rs.next());
    assertEquals("World", rs.getString("name"));
    assertFalse(rs.next());
    // Changes the table structure
    stat.execute("create index t_id on test(name)");
    // Test the prepared statement again to check if the internal cache attributes were reset
    ps.setString(1, "Hello");
    rs = ps.executeQuery();
    assertTrue(rs.next());
    assertEquals("Hello", rs.getString("name"));
    assertFalse(rs.next());
    ps.setString(1, "World");
    rs = ps.executeQuery();
    assertTrue(rs.next());
    assertEquals("World", rs.getString("name"));
    assertFalse(rs.next());
    ps = conn.prepareStatement("insert into test values(?, ?)");
    ps.setInt(1, 3);
    ps.setString(2, "v3");
    ps.addBatch();
    ps.setInt(1, 4);
    ps.setString(2, "v4");
    ps.addBatch();
    assertTrue(Arrays.equals(new int[] { 1, 1 }, ps.executeBatch()));
    ps.setInt(1, 5);
    ps.setString(2, "v5");
    ps.addBatch();
    ps.setInt(1, 6);
    ps.setString(2, "v6");
    ps.addBatch();
    assertTrue(Arrays.equals(new long[] { 1, 1 }, ((JdbcStatementBackwardsCompat) ps).executeLargeBatch()));
    ps.setInt(1, 7);
    ps.setString(2, "v7");
    assertEquals(1, ps.executeUpdate());
    assertEquals(1, ps.getUpdateCount());
    ps.setInt(1, 8);
    ps.setString(2, "v8");
    assertEquals(1, ((JdbcPreparedStatementBackwardsCompat) ps).executeLargeUpdate());
    assertEquals(1, ((JdbcStatementBackwardsCompat) ps).getLargeUpdateCount());
    stat.execute("drop table test");
}