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Java Source Code / Java Documentation » Library » Tapestry » org.apache.tapestry

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Class Diagram

Java Document (Java Doc)

org.apache.tapestry .FieldValidator

All known Subclasses:   org.apache.tapestry.internal.services .FieldValidatorImpl,  org.apache.tapestry.internal.services .CompositeFieldValidator,
FieldValidator
public interface FieldValidator (Code)
Responsible for validation of a single field. <
Parameters:
  T - >
See Also:   Validator

Method Summary
void render(MarkupWriter writer)
     Invokes Validator.render(FieldObjectorg.apache.tapestry.ioc.MessageFormatterMarkupWriterPageRenderSupport) .
void validate(T value)
     Invoked after the client-submitted value has been Translator translated to check that the value conforms to expectations (often, in terms of minimum or maximum value).

Method Detail
render
void render(MarkupWriter writer)(Code)
Invokes Validator.render(FieldObjectorg.apache.tapestry.ioc.MessageFormatterMarkupWriterPageRenderSupport) .
Parameters:
  writer -

validate
void validate(T value) throws ValidationException(Code)
Invoked after the client-submitted value has been Translator translated to check that the value conforms to expectations (often, in terms of minimum or maximum value). If and only if the value is approved by all Validators is the value applied by the field.
Parameters:
  value - the translated value supplied by the user
throws:
  ValidationException - if the value violates the constraint

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