Examples of org.zkoss.zk.ui.util.Initiator.doCatch()

org.zkoss.zk.ui.util.Initiator.doCatch()

Called when an exception occurs during the evaluation of the page.

If you don't want to handle the exception, simply returns false. boolean doCatch(Throwable ex) {return false;}

An exception thrown in this method is simply logged. It has no effect on the execution. If you want to ignore the exception, just return true.

Notice: this method won't be called if the exception occurs in {@link #doInit}. @param ex the exception being thrown @return whether to ignore the exception. If false is returned,the exception will be re-thrown. Note: once an initiator's doCatch returns true, the exception will be ignored and it means doCatch of the following initiators won't be called. Prior to ZK 3.0.0, void is returned and it means always re-thrown

  public boolean doCatch(Throwable t) {
    for (Iterator it = _inits.iterator(); it.hasNext();) {
      final Initiator init = (Initiator)it.next();
      try {
        try {
          if (init.doCatch(t))
            return true; //ignore and skip all other initiators
        } catch (AbstractMethodError ex) { //backward compatible prior to 3.0
          final Method m = init.getClass().getMethod(
              "doCatch", new Class[] {Throwable.class});
          Fields.setAccessible(m, true);

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