org.apache.tapestry5.corelib.components
Class DateField

java.lang.Object
  org.apache.tapestry5.corelib.base.AbstractField
      org.apache.tapestry5.corelib.components.DateField

All Implemented Interfaces:

ClientElement, Field

@IncludeStylesheet(value="${tapestry.datepicker}/css/datepicker.css")
@IncludeJavaScriptLibrary(value={"${tapestry.datepicker}/js/datepicker.js","datefield.js"})
public class DateField
extends AbstractField

A component used to collect a provided date from the user using a client-side JavaScript calendar. Non-JavaScript clients can simply type into a text field.

One wierd aspect here is that, because client-side JavaScript formatting and parsing is so limited, we (currently) use Ajax to send the user's input to the server for parsing (before raising the popup) and formatting (after closing the popup). Wierd and inefficient, but easier than writing client-side JavaScript for that purpose.

Tapestry's DateField component is a wrapper around WebFX DatePicker.

Constructor Summary

DateField()

Method Summary

boolean	isRequired() Returns false; most components do not support declarative validation.
protected void	processSubmission(String elementName) Method implemented by subclasses to actually do the work of processing the submission of the form.

Methods inherited from class org.apache.tapestry5.corelib.base.AbstractField

createDefaultParameterBinding, decorateInsideField, getClientId, getControlName, getLabel, isDisabled, setDecorator, setFormSupport

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DateField

public DateField()

Method Detail

processSubmission

protected void processSubmission(String elementName)

Description copied from class: AbstractField

Method implemented by subclasses to actually do the work of processing the submission of the form. The element's elementName property will already have been set. This method is only invoked if the field is not disabled.

Specified by:

processSubmission in class AbstractField

Parameters:

elementName - the name of the element (used to find the correct parameter in the request)

isRequired

public boolean isRequired()

Description copied from class: AbstractField

Returns false; most components do not support declarative validation.

Specified by:

isRequired in interface Field

Overrides:

isRequired in class AbstractField

Returns:

true if a non-blank value is required for the field