Examples of java.sql.SQLWarning

java.sql.SQLWarning

An exception that provides information on database access warnings. Warnings are silently chained to the object whose method caused it to be reported.
Warnings may be retrieved from Connection, Statement, and ResultSet objects. Trying to retrieve a warning on a connection after it has been closed will cause an exception to be thrown. Similarly, trying to retrieve a warning on a statement after it has been closed or on a result set after it has been closed will cause an exception to be thrown. Note that closing a statement also closes a result set that it might have produced. @see Connection#getWarnings @see Statement#getWarnings @see ResultSet#getWarnings


  @Override
  public void export(String string) throws Exception {
    statement.executeUpdate( string );
    try {
      SQLWarning warnings = statement.getWarnings();
      if ( warnings != null) {
        sqlExceptionHelper.logAndClearWarnings( connection );
      }
    }
    catch( SQLException e ) {

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    }
    if ( export ) {


      statement.executeUpdate( sql );
      try {
        SQLWarning warnings = statement.getWarnings();
        if ( warnings != null) {
          sqlExceptionHelper.logAndClearWarnings( connectionHelper.getConnection() );
        }
      }
      catch( SQLException sqle ) {

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    }
    if ( export ) {


      statement.executeUpdate( sql );
      try {
        SQLWarning warnings = statement.getWarnings();
        if ( warnings != null) {
          JDBCExceptionReporter.logAndClearWarnings( connectionHelper.getConnection() );
        }
      }
      catch( SQLException sqle ) {

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    if ( outputFile != null ) {
      fileOutput.write( formatted + "\n" );
    }
    if ( export ) {
      statement.executeUpdate( sql );
      SQLWarning warnings = statement.getWarnings();
      if ( warnings != null) {
          JDBCExceptionReporter.logAndClearWarnings( connectionHelper.getConnection() );
      }
    }

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    // Now that we've processed all SET statements (assuming no
    // severe exceptions), check for warnings and, if we had any,
    // note this in the SQLCARD reply object (but DON'T cause the
    // EXCSQLSET statement to fail).
    if (hadUnrecognizedStmt) {
      SQLWarning warn = new SQLWarning("One or more SET statements " +
        "not recognized.", "01000");
      throw warn;
    } // end if.


    return;

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        moreData = false;
        return moreData;
      }
      
      // Send ResultSet warnings if there are any
      SQLWarning sqlw = (rs != null)? rs.getWarnings(): null;
      if (rs != null) {
        rs.clearWarnings();
      }


      // for updatable, insensitive result sets we signal the
      // row updated condition to the client via a warning to be 
      // popped by client onto its rowUpdated state, i.e. this 
      // warning should not reach API level.
      if (rs != null && rs.rowUpdated()) {
        SQLWarning w = new SQLWarning("", SQLState.ROW_UPDATED,
            ExceptionSeverity.WARNING_SEVERITY);
        if (sqlw != null) {
          sqlw.setNextWarning(w);
        } else {
          sqlw = w;
        }
      }
      // Delete holes are manifest as a row consisting of a non-null
      // SQLCARD and a null data group. The SQLCARD has a warning
      // SQLSTATE of 02502
      if (rs != null && rs.rowDeleted()) {
        SQLWarning w = new SQLWarning("", SQLState.ROW_DELETED,
            ExceptionSeverity.WARNING_SEVERITY);
        if (sqlw != null) {
          sqlw.setNextWarning(w);
        } else {
          sqlw = w;

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              int updateCount, boolean alwaysSend, boolean sendWarn)
    throws DRDAProtocolException, SQLException
  {
    // instead of writing a chain of sql warning, we send the first one, this is
    // jcc/db2 limitation, see beetle 4629
    SQLWarning warning = null;
    SQLWarning reportWarning = null;
    try
    {
      if (stmt != null)
      {
        warning = stmt.getWarnings();

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   *
   * @throws SQLWarning
   */
  private void throwSQLWarning(String msg) throws SQLWarning
  {
    SQLWarning se = null;
    SQLWarning ne;
    SQLWarning ce = null;
    StringBuffer strbuf = new StringBuffer();
    StringTokenizer tokenizer = new StringTokenizer(msg, "\n");
    String sqlstate = null;
    String str;
    while (tokenizer.hasMoreTokens())
    {
      str = tokenizer.nextToken();
      //start of the next message
      if (str.charAt(5) == ':')
      {
        if (strbuf.length() > 0)
        {
          if (se == null)
          {
            se = new SQLWarning(strbuf.toString(), sqlstate);
            ce = se;
          }
          else
          {
            ne = new SQLWarning(strbuf.toString(), sqlstate);
            ce.setNextException(ne);
            ce = ne;
          }
          strbuf = new StringBuffer();
        }
        strbuf.append(str.substring(6));
        sqlstate = str.substring(0,5);
      }
      else
        strbuf.append(str);
    }
    if (strbuf.length() > 0)
    {
      if (se == null)
      {
        se = new SQLWarning(strbuf.toString(), sqlstate);
        ce = se;
      }
      else
      {
        ne = new SQLWarning(strbuf.toString(), sqlstate);
        ce.setNextException(ne);
        ce = ne;
      }
    }
    throw se;
  }

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     try {
      //Note, we add database to the url so that we can allow additional
      //url attributes
      Connection conn = DriverManager.getConnection(Attribute.PROTOCOL+database, p);
      // send warnings
      SQLWarning warn = conn.getWarnings();
      if (warn != null)
        sendSQLMessage(writer, warn, SQLWARNING);
      else
        sendOK(writer);
      conn.close();

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      // don't re-display warnings we have already seen
      seenWarnings.put(warn, new java.util.Date());
      handleSQLException(warn);
    }


    SQLWarning next = warn.getNextWarning();
    if (next != warn) {
      showWarnings(next);
    }
  }

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