Examples of java.sql.Blob.truncate()

java.sql.Blob.truncate()
Truncate the value of this Blob object to a specified length in bytes. @param len the length of data in bytes to truncate the value of this Blob @throws SQLException if an error occurs accessing the Blob


      ReadStream readStream = file.openRead();


      if (_lob instanceof Blob) {
        Blob blob = (Blob) _lob;
        blob.truncate(0);


        if (_outputStream != null)
          _outputStream.close();


        _outputStream = blob.setBinaryStream(0);

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      case OracleModule.OCI_D_FILE:
        break;
      case OracleModule.OCI_D_LOB:
        if (_lob instanceof Blob) {
          Blob blob = (Blob) _lob;
          blob.truncate(length);
        } else if (_lob instanceof Clob) {
          Clob clob = (Clob) _lob;
          clob.truncate(length);
        }
        break;

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    try {
      this.rs = this.stmt.executeQuery("SELECT field1 FROM testBug34677");
      this.rs.next();
      Blob blob = this.rs.getBlob(1);
      blob.truncate(0L);
      assertEquals(0, blob.length());
      assertEquals(-1, blob.getBinaryStream().read());
    } finally {
      closeMemberJDBCResources();
    }

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      ReadStream readStream = file.openRead();


      if (_lob instanceof Blob) {
        Blob blob = (Blob) _lob;
        blob.truncate(0);


        if (_outputStream != null)
          _outputStream.close();


        _outputStream = blob.setBinaryStream(0);

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      case OracleModule.OCI_D_FILE:
        break;
      case OracleModule.OCI_D_LOB:
        if (_lob instanceof Blob) {
          Blob blob = (Blob) _lob;
          blob.truncate(length);
        } else if (_lob instanceof Clob) {
          Clob clob = (Clob) _lob;
          clob.truncate(length);
        }
        break;

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