Examples of org.apache.tapestry5.ValidationTracker

org.apache.tapestry5.ValidationTracker
Tracks information related to user input validations. This information is:
- The input values provided by the user.
- Any validation exceptions associated with input fields.
The tracker must differentiate between components (which will implement the {@link Field} interfaces) and fields. Itis a one to many relationship, because each field may be called upon to render itself multiple times within a request, because of {@link Loop} or other similar components.
Internally, the tracker indexes its information in terms of the {@linkplain Field#getControlName() control name} foreach rendering of the component (the mechanics of Tapestry ensures that this is unique within the form).
Validation trackers must be serializable, as they will almost always be stored into the HttpSession.
Trackers are used by only a single form within a single page; they are not threadsafe.

            markupWriter.end(); // span
        }
    }


    private boolean inError(Field field) {
        ValidationTracker tracker = environment.peekRequired(ValidationTracker.class);
        return tracker.inError(field);
    }

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        ValidationTracker tracker = environment.peekRequired(ValidationTracker.class);
        return tracker.inError(field);
    }


    private String getError(Field field) {
        ValidationTracker tracker = environment.peekRequired(ValidationTracker.class);
        return tracker.getError(field);
    }

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    public void afterField(Field field) {
    }


    private boolean inError(Field field) {
        ValidationTracker tracker = environment
                .peekRequired(ValidationTracker.class);


        return tracker.inError(field);
    }

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        return tracker.inError(field);
    }


    private String getError(Field field) {
        ValidationTracker tracker = environment
                .peekRequired(ValidationTracker.class);
        return tracker.getError(field);
    }

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   @Override
     public void beforeLabel(Field field) {
         if (inError(field)) {
             markupWriter.element("div",
                     "class", "single-error-message");
             ValidationTracker tracker =
               environment.peekRequired(ValidationTracker.class);
             markupWriter.write(tracker.getError(field));
             markupWriter.end();


         }
     }

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  public void afterField(Field field) {


    System.out.println(field.getControlName());
    if (inError(field)) {


      ValidationTracker tracker = getTracker();
      markupWriter.element("span", "class", "error-description");
      markupWriter.write(tracker.getError(field));
      markupWriter.end();


    }


  }

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  public void afterLabel(Field field) {
    
    if (inError(field)) {
             markupWriter.element("span",
                     "class", "single-error-message");
             ValidationTracker tracker =
               environment.peekRequired(ValidationTracker.class);
             markupWriter.write("texto");
             markupWriter.write(tracker.getError(field));
             markupWriter.end();


         }


  }

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         }


  }


  private boolean inError(Field field) {
    ValidationTracker tracker = getTracker();
    return tracker.inError(field);
  }

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     * @return a tracker ready to receive data (possibly a previously stored tracker with field
     *         input and errors)
     */
    private ValidationTracker getWrappedTracker()
    {
        ValidationTracker innerTracker = tracker == null ? new ValidationTrackerImpl() : tracker;


        ValidationTracker wrapper = new ValidationTrackerWrapper(innerTracker)
        {
            private boolean saved = false;


            private void save()
            {

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        {
            ValidationException ve = ExceptionUtils.findCause(ex, ValidationException.class);


            if (ve != null)
            {
                ValidationTracker tracker = environment.peek(ValidationTracker.class);


                tracker.recordError(ve.getMessage());


                return;
            }


            throw ex;

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