Exemplo n.º 1
1
  /**
   * Tests the implementation of getCharacterStream(long pos, long length).
   *
   * @throws Exception
   */
  public void testGetCharacterStreamLong() throws Exception {
    String str1 = "This is a test String. This is a test String";

    Reader r1 = new java.io.StringReader(str1);

    PreparedStatement ps = prepareStatement("insert into BLOBCLOB(ID, CLOBDATA) values(?,?)");
    int id = BlobClobTestSetup.getID();
    ps.setInt(1, id);
    ps.setCharacterStream(2, r1);
    ps.execute();
    ps.close();

    Statement st = createStatement();

    ResultSet rs = st.executeQuery("select CLOBDATA from " + "BLOBCLOB where ID=" + id);
    rs.next();
    Clob clob = rs.getClob(1);

    Reader r_1 = clob.getCharacterStream(2L, 5L);
    String str2 = str1.substring(1, 6);
    Reader r_2 = new java.io.StringReader(str2);

    assertEquals(r_2, r_1);

    rs.close();
    st.close();
  }
Exemplo n.º 2
0
  /**
   * Test that <code>Clob.getCharacterStream(long,long)</code> works on CLOBs that are streamed from
   * store. (DERBY-2891)
   */
  public void testGetCharacterStreamLongOnLargeClob() throws Exception {
    getConnection().setAutoCommit(false);

    // create large (>32k) clob that can be read from store
    final int size = 33000;
    StringBuilder sb = new StringBuilder(size);
    for (int i = 0; i < size; i += 10) {
      sb.append("1234567890");
    }

    final int id = BlobClobTestSetup.getID();
    PreparedStatement ps =
        prepareStatement("insert into blobclob(id, clobdata) values (?,cast(? as clob))");
    ps.setInt(1, id);
    ps.setString(2, sb.toString());
    ps.executeUpdate();
    ps.close();

    Statement s = createStatement();
    ResultSet rs = s.executeQuery("select clobdata from blobclob where id = " + id);
    assertTrue(rs.next());
    Clob c = rs.getClob(1);

    // request a small region of the clob
    BufferedReader r = new BufferedReader(c.getCharacterStream(4L, 3L));
    assertEquals("456", r.readLine());

    r.close();
    c.free();
    rs.close();
    s.close();
    rollback();
  }
  //
  // Examine BLOBs and CLOBs.
  //
  private void vetLargeObjects(
      Connection conn, HashSet<String> unsupportedList, HashSet<String> notUnderstoodList)
      throws Exception {
    Statement stmt = conn.createStatement();

    stmt.execute("CREATE TABLE t (id INT PRIMARY KEY, " + "b BLOB(10), c CLOB(10))");
    stmt.execute(
        "INSERT INTO t (id, b, c) VALUES (1, "
            + "CAST ("
            + TestUtil.stringToHexLiteral("101010001101")
            + "AS BLOB(10)), CAST ('hello' AS CLOB(10)))");

    ResultSet rs = stmt.executeQuery("SELECT id, b, c FROM t");

    rs.next();

    Blob blob = rs.getBlob(2);
    Clob clob = rs.getClob(3);

    vetObject(blob, unsupportedList, notUnderstoodList);
    vetObject(clob, unsupportedList, notUnderstoodList);

    stmt.close();
    conn.rollback();
  }
Exemplo n.º 4
0
 public void tearDown() {
   try {
     Connection con = AllTests.getConnection();
     Statement st = con.createStatement();
     st.execute("drop table " + table);
     st.close();
   } catch (Throwable e) {
     // e.printStackTrace();
   }
 }
Exemplo n.º 5
0
  /**
   * Try to update the row with the given error. Flag a failure if a timeout occurs when not
   * expected, and vice versa.
   *
   * @param id The id of the row to be updated
   * @param timeoutExpected true if it is expected that the update times out
   * @throws java.sql.SQLException
   */
  private void executeParallelUpdate(int id, boolean timeoutExpected) throws SQLException {
    Connection conn2 = openDefaultConnection();
    Statement stmt2 = conn2.createStatement();

    try {
      stmt2.executeUpdate(
          "update BLOBCLOB set BLOBDATA = " + "cast(X'FFFFFF' as blob) where ID=" + id);
      stmt2.close();
      conn2.commit();
      conn2.close();
      if (timeoutExpected) {
        fail("FAIL - should have gotten lock timeout");
      }
    } catch (SQLException se) {
      stmt2.close();
      conn2.rollback();
      conn2.close();
      if (timeoutExpected) {
        assertSQLState(LOCK_TIMEOUT, se);
      } else {
        throw se;
      }
    }
  }
Exemplo n.º 6
0
  public void setUp() {
    tearDown();
    try {
      Connection con = AllTests.getConnection();
      Statement st = con.createStatement();
      st.execute(
          "create table " + table + "(a " + testValue.dataType + ", b " + testValue.dataType + ")");
      st.close();
      PreparedStatement pr = con.prepareStatement("INSERT into " + table + "(a,b) Values(?,?)");

      pr.setObject(1, testValue.small);
      pr.setObject(2, testValue.large);
      pr.execute();

      pr.setObject(1, testValue.small);
      pr.setObject(2, testValue.small);
      pr.execute();

      pr.setObject(1, testValue.large);
      pr.setObject(2, testValue.large);
      pr.execute();

      pr.setObject(1, testValue.large);
      pr.setObject(2, testValue.small);
      pr.execute();

      pr.setObject(1, null);
      pr.setObject(2, testValue.small);
      pr.execute();

      pr.setObject(1, testValue.small);
      pr.setObject(2, null);
      pr.execute();

      pr.setObject(1, null);
      pr.setObject(2, null);
      pr.execute();
      pr.close();
    } catch (Throwable e) {
      e.printStackTrace();
    }
  }
Exemplo n.º 7
0
  /**
   * Insert a row with a large clob into the test table. Read the row from the database and assign
   * the clob value to <code>clob</code>.
   *
   * @return The id of the row that was inserted
   * @throws java.sql.SQLException
   */
  private int initializeLongClob() throws SQLException {
    // Clob needs to be larger than one page for locking to occur
    final int lobLength = 40000;

    // Insert a long Clob
    PreparedStatement ps = prepareStatement("insert into BLOBCLOB(ID, CLOBDATA) values(?,?)");
    int id = BlobClobTestSetup.getID();
    ps.setInt(1, id);
    ps.setCharacterStream(2, new LoopingAlphabetReader(lobLength), lobLength);
    ps.execute();
    ps.close();
    commit();

    // Fetch the Clob object from the database
    Statement st = createStatement();
    ResultSet rs = st.executeQuery("select CLOBDATA from BLOBCLOB where ID=" + id);
    rs.next();
    clob = rs.getClob(1);
    rs.close();
    st.close();

    return id;
  }
Exemplo n.º 8
0
  public void runTest() throws Exception {
    Connection con = AllTests.getConnection();
    Statement st = con.createStatement();
    ResultSet rs;

    rs = st.executeQuery("Select * from " + table + " where 1 = 0");
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a = b");
    assertTrue("To few rows", rs.next());
    assertEqualsObject("Values not equals", rs.getObject(1), rs.getObject(2), false);
    assertTrue("To few rows", rs.next());
    assertEqualsObject("Values not equals", rs.getObject(1), rs.getObject(2), false);
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a <= b and b <= a");
    assertTrue("To few rows", rs.next());
    assertEqualsObject("Values not equals", rs.getObject(1), rs.getObject(2), false);
    assertTrue("To few rows", rs.next());
    assertEqualsObject("Values not equals", rs.getObject(1), rs.getObject(2), false);
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where (a > (b))");
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a >= b");
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where not (a >= b)");
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a < b");
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a < b or a>b");
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a <= b");
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    rs = st.executeQuery("Select * from " + table + " where a <> b");
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());

    PreparedStatement pr =
        con.prepareStatement("Select * from " + table + " where a between ? and ?");
    pr.setObject(1, testValue.small);
    pr.setObject(2, testValue.large);
    rs = pr.executeQuery();
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());
    pr.close();

    pr = con.prepareStatement("Select * from " + table + " where a not between ? and ?");
    pr.setObject(1, testValue.small);
    pr.setObject(2, testValue.large);
    rs = pr.executeQuery();
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());
    pr.close();

    pr = con.prepareStatement("Select * from " + table + " where a in(?,?)");
    pr.setObject(1, testValue.small);
    pr.setObject(2, testValue.large);
    rs = pr.executeQuery();
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());
    pr.close();

    pr = con.prepareStatement("Select * from " + table + " where a not in(?,?)");
    pr.setObject(1, testValue.small);
    pr.setObject(2, testValue.large);
    rs = pr.executeQuery();
    assertTrue("To few rows", rs.next());
    assertTrue("To few rows", rs.next());
    assertFalse("To many rows", rs.next());
    pr.close();

    st.close();
  }