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T
- public interface Translator<T>
Translates between client-side and server-side values. Client-side values are always strings.
TranslatorSource
,
FieldValidationSupport
,
FieldTranslator
Method Summary | |
---|---|
java.lang.String |
getMessageKey()
Returns the message key, within the application's global message catalog, normally used by this validator. |
java.lang.String |
getName()
Returns a unique name for the translator. |
java.lang.Class<T> |
getType()
Returns the type of the server-side value. |
T |
parseClient(Field field,
java.lang.String clientValue,
java.lang.String message)
Converts a submitted request value into an appropriate server side value. |
void |
render(Field field,
java.lang.String message,
MarkupWriter writer,
FormSupport formSupport)
Hook used by components to allow the validator to contribute additional attributes or (more often) client-side JavaScript (via the FormSupport.addValidation(Field, String, String, Object) ). |
java.lang.String |
toClient(T value)
Converts a server-side value to a client-side string. |
Method Detail |
---|
java.lang.String getName()
java.lang.String toClient(T value)
parseClient(Field, String, String)
.
value
- the server side value (which will not be null)
java.lang.Class<T> getType()
java.lang.String getMessageKey()
parseClient(Field, String, String)
or
render(Field, String, MarkupWriter, org.apache.tapestry5.services.FormSupport)
.
T parseClient(Field field, java.lang.String clientValue, java.lang.String message) throws ValidationException
field
- for which a value is being parsedclientValue
- to convert to a server value; this will not be null, but may be blankmessage
- formatted validation message, either from validation messages, or from an override
ValidationException
- if the value can not be parsedvoid render(Field field, java.lang.String message, MarkupWriter writer, FormSupport formSupport)
FormSupport.addValidation(Field, String, String, Object)
).
field
- the field which is currently being renderedmessage
- formatted validation message, either from validation messages, or from an overridewriter
- markup writer, allowing additional attributes to be written into the active elementformSupport
- used to add JavaScript
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