Module org.apache.wicket.extensions

Package org.apache.wicket.extensions.markup.html.repeater.tree

Class Node<T>

java.lang.Object

org.apache.wicket.Component

org.apache.wicket.MarkupContainer

org.apache.wicket.markup.html.WebMarkupContainer

org.apache.wicket.markup.html.panel.Panel

org.apache.wicket.extensions.markup.html.repeater.tree.Node<T>

Type Parameters:

T - The model object type

All Implemented Interfaces:

Serializable, Iterable<Component>, IEventSink, IEventSource, IFeedbackContributor, IConverterLocator, IMetadataContext<Serializable,Component>, IQueueRegion, IHeaderContributor, IRequestableComponent, IHierarchical<Component>, IClusterable

public abstract class Node<T>
extends Panel

Representation of a single node in the tree. By default uses an AjaxFallbackLink for its junction component.

Author:

svenmeier

See Also:

• createJunctionComponent(String)
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COLLAPSED_CLASS_KEY
static final String	CONTENT_ID	The component id for the content component.
static final String	EXPANDED_CLASS_KEY
static final String	OTHER_CLASS_KEY

Fields inherited from class org.apache.wicket.markup.html.panel.Panel

PANEL

Fields inherited from class org.apache.wicket.Component

ENABLE, FLAG_INITIALIZED, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED8, PARENT_PATH, PATH_SEPARATOR, RENDER, RFLAG_CONTAINER_DEQUEING, RFLAG_CONTAINER_HAS_REMOVALS

Constructor Summary

Constructors

Constructor	Description
Node(String id, AbstractTree<T> tree, IModel<T> model)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected abstract Component	createContent(String id, IModel<T> model)	Create the component to display the actual node's content.
protected MarkupContainer	createJunctionComponent(String id)	The junction component expands and collapses this node.
protected String	getCollapsedStyleClass()
protected String	getExpandedStyleClass(T t)
IModel<T>	getModel()
T	getModelObject()
protected String	getOtherStyleClass()
protected String	getStyleClass()	Get the style class depending on the current AbstractTree.State of this node.
protected void	onInitialize()	This method is meant to be used as an alternative to initialize components.
protected void	toggle()	Toggle the node.

Methods inherited from class org.apache.wicket.markup.html.panel.Panel

getRegionMarkup, newMarkupSourcingStrategy

Methods inherited from class org.apache.wicket.markup.html.WebMarkupContainer

getWebApplication, getWebPage, getWebRequest, getWebResponse, getWebSession

Methods inherited from class org.apache.wicket.MarkupContainer

add, addDequeuedComponent, addOrReplace, autoAdd, canDequeueTag, contains, dequeue, dequeue, dequeuePreamble, findChildComponent, findComponentToDequeue, get, getAssociatedMarkup, getAssociatedMarkupStream, getMarkup, getMarkupType, internalAdd, internalInitialize, iterator, iterator, newDequeueContext, onComponentTagBody, onDetach, onRender, queue, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderNext, replace, setDefaultModel, size, stream, streamChildren, toString, toString, visitChildren, visitChildren

Methods inherited from class org.apache.wicket.Component

add, addStateChange, beforeRender, canCallListener, canCallListenerAfterExpiry, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, clearOriginalDestination, configure, continueToOriginalDestination, createConverter, debug, detach, detachModel, detachModels, determineVisibility, error, exceptionMessage, fatal, findMarkupStream, findPage, findParent, findParentWithAssociatedMarkup, getAjaxRegionMarkupId, getApplication, getBehaviorById, getBehaviorId, getBehaviors, getBehaviors, getClassRelativePath, getConverter, getDefaultModel, getDefaultModelObject, getDefaultModelObjectAsString, getDefaultModelObjectAsString, getEscapeModelStrings, getFeedbackMessages, getFlag, getId, getInnermostModel, getInnermostModel, getLocale, getLocalizer, getMarkup, getMarkupAttributes, getMarkupId, getMarkupId, getMarkupIdFromMarkup, getMarkupIdImpl, getMarkupSourcingStrategy, getMarkupTag, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getRequestFlag, getResponse, getSession, getSizeInBytes, getStatelessHint, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, initModel, internalOnModelChanged, internalRenderComponent, internalRenderHead, isActionAuthorized, isAuto, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isInitialized, isRenderAllowed, isRendering, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, markRendering, modelChanged, modelChanging, onAfterRender, onBeforeRender, onComponentTag, onConfigure, onEvent, onModelChanged, onModelChanging, onReAdd, onRemove, redirectToInterceptPage, remove, remove, render, renderComponentTag, rendered, renderHead, renderPart, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, send, setAuto, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setIgnoreAttributeModifier, setMarkup, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setParent, setRenderBodyOnly, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, success, urlFor, urlFor, urlFor, urlForListener, urlForListener, visitParents, visitParents, warn, wrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.IQueueRegion

dequeue, newDequeueContext

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

OTHER_CLASS_KEY

public static final String OTHER_CLASS_KEY

EXPANDED_CLASS_KEY

public static final String EXPANDED_CLASS_KEY

COLLAPSED_CLASS_KEY

public static final String COLLAPSED_CLASS_KEY

CONTENT_ID

public static final String CONTENT_ID

The component id for the content component.

See Also:

• Constant Field Values

Constructor Details

Node

public Node(String id,
 AbstractTree<T> tree,
 IModel<T> model)

Constructor.

Parameters:

id - component id

tree - the owning tree

model - the model for this node

Method Details

onInitialize

protected void onInitialize()

Description copied from class: Component

This method is meant to be used as an alternative to initialize components. Usually the component's constructor is used for this task, but sometimes a component cannot be initialized in isolation, it may need to access its parent component or its markup in order to fully initialize. This method is invoked once per component's lifecycle when a path exists from this component to the Page thus providing the component with an atomic callback when the component's environment is built out.

Overrides must call super#Component.onInitialize(). Usually this should be the first thing an override does, much like a constructor.

Parent containers are guaranteed to be initialized before their children

It is safe to use Component.getPage() in this method

NOTE:The timing of this call is not precise, the contract is that it is called sometime before Component.onBeforeRender().

Overrides:

onInitialize in class MarkupContainer

getModel

public IModel<T> getModel()

Returns:

the model

getModelObject

public T getModelObject()

Returns:

the model object

createJunctionComponent

protected MarkupContainer createJunctionComponent(String id)

The junction component expands and collapses this node.

Parameters:

id - the component id

Returns:

component representing the junction

toggle

protected void toggle()

Toggle the node.

See Also:

• AbstractTree.collapse(Object)
• AbstractTree.expand(Object)

createContent

protected abstract Component createContent(String id,
 IModel<T> model)

Create the component to display the actual node's content.

Parameters:

id - the component id

model - the node's model

Returns:

the component representing the content

getStyleClass

protected String getStyleClass()

Get the style class depending on the current AbstractTree.State of this node.

Returns:

the style class

See Also:

• getExpandedStyleClass(Object)
• getCollapsedStyleClass()
• getOtherStyleClass()

getExpandedStyleClass

protected String getExpandedStyleClass(T t)

getCollapsedStyleClass

protected String getCollapsedStyleClass()

getOtherStyleClass

protected String getOtherStyleClass()