org.apache.wicket.markup.parser.filter
Class WicketMessageTagHandler

java.lang.Object
  org.apache.wicket.markup.parser.AbstractMarkupFilter
      org.apache.wicket.markup.parser.filter.WicketMessageTagHandler

All Implemented Interfaces:

Serializable, IMarkupFilter, IComponentResolver, IClusterable

public final class WicketMessageTagHandler
extends AbstractMarkupFilter
implements IComponentResolver

This is a markup inline filter and a component resolver. It identifies wicket:message attributes and adds an attribute modifier to the component tag that can localize wicket:message="attr-name:i18n-key,attr-name-2:i18n-key-2,..." expressions, replacing values of attributes specified by attr-name with a localizer lookup with key i18n-key. If an attribute being localized has a set value that value will be used as the default value for the localization lookup. This handler also resolves and localizes raw markup with wicket:message attribute.

Author:

Juergen Donnerstag, Igor Vaynberg

See Also:

Serialized Form

Nested Class Summary

static class

WicketMessageTagHandler.AttributeLocalizer Attribute localizing behavior.

Field Summary

static String

WICKET_MESSAGE_CONTAINER_ID The id automatically assigned to tags with wicket:message attribute but without id

Constructor Summary

WicketMessageTagHandler()
Constructor for the IComponentResolver role.

WicketMessageTagHandler(MarkupResourceStream markupResourceStream)
Constructor for the IMarkupFilter role.

Method Summary

protected MarkupElement	onComponentTag(ComponentTag tag) Invoked when a ComponentTag was found.
Component	resolve(MarkupContainer container, MarkupStream markupStream, ComponentTag tag) Try to resolve a component.

Methods inherited from class org.apache.wicket.markup.parser.AbstractMarkupFilter

getMarkupResourceStream, getNextFilter, getWicketNamespace, getWicketNamespace, nextElement, onSpecialTag, postProcess, setNextFilter

Methods inherited from class java.lang.Object

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

Field Detail

WICKET_MESSAGE_CONTAINER_ID

public static final String WICKET_MESSAGE_CONTAINER_ID

The id automatically assigned to tags with wicket:message attribute but without id

See Also:

Constant Field Values

Constructor Detail

WicketMessageTagHandler

public WicketMessageTagHandler()

Constructor for the IComponentResolver role.

WicketMessageTagHandler

public WicketMessageTagHandler(MarkupResourceStream markupResourceStream)

Constructor for the IMarkupFilter role.

Method Detail

onComponentTag

protected final MarkupElement onComponentTag(ComponentTag tag)
                                      throws ParseException

Description copied from class: AbstractMarkupFilter

Invoked when a ComponentTag was found.

By default this method is also called for WicketTags.

Specified by:

onComponentTag in class AbstractMarkupFilter

Returns:

Usually the same as the tag attribute

Throws:

ParseException

resolve

public Component resolve(MarkupContainer container,
                         MarkupStream markupStream,
                         ComponentTag tag)

Description copied from interface: IComponentResolver

Try to resolve a component.

Specified by:

resolve in interface IComponentResolver

Parameters:

container - The container parsing its markup

markupStream - The current markupStream

tag - The current component tag while parsing the markup

Returns:

component or null if not found