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

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

All Implemented Interfaces:

java.io.Serializable, IClusterable, IMarkupFilter, IComponentResolver

public final class EnclosureHandler
extends AbstractMarkupFilter
implements IComponentResolver

This is a markup inline filter. It identifies <wicket:enclosure> tags. If the 'child' attribute is empty it determines the wicket:id of the child component automatically by analyzing the wicket component (in this case on one wicket component is allowed) in between the open and close tags. If the enclosure tag has a 'child' attribute like <wicket:enclosure child="xxx"> than more than just one wicket component inside the enclosure tags are allowed and the child component which determines the visibility of the enclosure is identified by the 'child' attribute value which must be equal to the relative child id path.

Author:

Juergen Donnerstag

See Also:

EnclosureResolver, Enclosure, Serialized Form

Field Summary

static java.lang.String	CHILD_ATTRIBUTE The child attribute
static java.lang.String	ENCLOSURE

Constructor Summary

EnclosureHandler()
Construct.

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

getNextFilter, nextElement, onSpecialTag, postProcess, setNextFilter

Methods inherited from class java.lang.Object

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

Field Detail

ENCLOSURE

public static final java.lang.String ENCLOSURE

See Also:

Constant Field Values

CHILD_ATTRIBUTE

public static final java.lang.String CHILD_ATTRIBUTE

The child attribute

See Also:

Constant Field Values

Constructor Detail

EnclosureHandler

public EnclosureHandler()

Construct.

Method Detail

onComponentTag

protected final MarkupElement onComponentTag(ComponentTag tag)
                                      throws java.text.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:

java.text.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