org.apache.wicket.markup.parser.filter

Class WicketTagIdentifier

java.lang.Object

org.apache.wicket.markup.parser.AbstractMarkupFilter

org.apache.wicket.markup.parser.filter.WicketTagIdentifier

All Implemented Interfaces:

IMarkupFilter

public final class WicketTagIdentifier
extends AbstractMarkupFilter

This is a markup inline filter. It identifies xml tags which have a special meaning for Wicket. There are two type of tags which have a special meaning for Wicket.

• All tags with Wicket namespace, e.g. <wicket:remove>
• All tags with an attribute like wicket:id="myLabel"

Author:

Juergen Donnerstag

Field Summary

Fields

Modifier and Type	Field and Description
static String	CHILD
static String	CONTAINER_INFO
static String	EXTEND
static String	FRAGMENT
static String	MARKUP_CACHE_KEY

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

REQUEST_COUNTER_KEY

Constructor Summary

Constructors

Constructor and Description
WicketTagIdentifier(MarkupResourceStream markup) Construct.

Method Summary

Methods

Modifier and Type	Method and Description
protected MarkupElement	onComponentTag(ComponentTag tag) Get the next tag from the next MarkupFilter in the chain and search for Wicket specific tags.
static void	registerWellKnownTagName(String name) Register a new well known wicket tag name (e.g.

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

getMarkupResourceStream, getNextFilter, getRequestUniqueId, 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

CONTAINER_INFO

public static final String CONTAINER_INFO

See Also:

Constant Field Values

CHILD

public static final String CHILD

See Also:

Constant Field Values

EXTEND

public static final String EXTEND

See Also:

Constant Field Values

FRAGMENT

public static final String FRAGMENT

See Also:

Constant Field Values

MARKUP_CACHE_KEY

public static final String MARKUP_CACHE_KEY

See Also:

Constant Field Values

Constructor Detail

WicketTagIdentifier

public WicketTagIdentifier(MarkupResourceStream markup)

Construct.

Parameters:

markup - The markup as known by now

Method Detail

onComponentTag

protected MarkupElement onComponentTag(ComponentTag tag)
                                throws ParseException

Get the next tag from the next MarkupFilter in the chain and search for Wicket specific tags.

Note: The xml parser - the next MarkupFilter in the chain - returns XmlTags which are a subclass of MarkupElement. The implementation of this filter will return either ComponentTag or WicketTag. Both are subclasses of MarkupElement and both maintain a reference to the XmlTag. But no XmlTag is returned.

Specified by:

onComponentTag in class AbstractMarkupFilter

Returns:

The next tag from markup to be processed. If null then no more tags are available

Throws:

ParseException

See Also:

IMarkupFilter.nextElement()

registerWellKnownTagName

public static void registerWellKnownTagName(String name)

Register a new well known wicket tag name (e.g. panel)

Parameters:

name -