Module org.apache.wicket.core

Package org.apache.wicket.markup.repeater.data

Class DataView<T>

java.lang.Object

org.apache.wicket.Component

org.apache.wicket.MarkupContainer

org.apache.wicket.markup.html.WebMarkupContainer

org.apache.wicket.markup.repeater.AbstractRepeater

org.apache.wicket.markup.repeater.RepeatingView

org.apache.wicket.markup.repeater.RefreshingView<T>

org.apache.wicket.markup.repeater.AbstractPageableView<T>

org.apache.wicket.markup.repeater.data.DataViewBase<T>

org.apache.wicket.markup.repeater.data.DataView<T>

Type Parameters:

T - The Model type.

All Implemented Interfaces:

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

public abstract class DataView<T>
extends DataViewBase<T>

DataView is a basic implementation of AbstractPageableView. Data views aim to make it very simple to populate your repeating view from a database by utilizing IDataProvider to act as an interface between the database and the dataview.

Example:

     <tbody>
       <tr wicket:id="rows">
         <td><span wicket:id="id">Test ID</span></td>
         ...
 

Though this example is about a HTML table, DataView is not at all limited to HTML tables. Any kind of list can be rendered using DataView.

And the related Java code:

 add(new DataView<UserDetails>("rows", dataProvider)
 {
        public void populateItem(final Item<UserDetails> item)
        {
                final UserDetails user = item.getModelObject();
                item.add(new Label("id", user.getId()));
        }
 });
 

Author:

Igor Vaynberg (ivaynberg)

See Also:

• IDataProvider
• IPageable
• Serialized Form

Field Summary

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

Modifier	Constructor	Description
protected	DataView(String id, IDataProvider<T> dataProvider)
protected	DataView(String id, IDataProvider<T> dataProvider, long itemsPerPage)

Method Summary

Modifier and Type	Method	Description
IDataProvider<T>	getDataProvider()

Methods inherited from class org.apache.wicket.markup.repeater.data.DataViewBase

getItemModels, internalGetDataProvider, internalGetItemCount, onDetach

Methods inherited from class org.apache.wicket.markup.repeater.AbstractPageableView

getCurrentPage, getFirstItemOffset, getItemCount, getItemModels, getItemsPerPage, getPageCount, getRowCount, getViewSize, onBeforeRender, setCurrentPage, setItemsPerPage

Methods inherited from class org.apache.wicket.markup.repeater.RefreshingView

addItems, getItemReuseStrategy, getItems, newItem, newItemFactory, onPopulate, populateItem, setItemReuseStrategy

Methods inherited from class org.apache.wicket.markup.repeater.RepeatingView

newChildId, renderIterator

Methods inherited from class org.apache.wicket.markup.repeater.AbstractRepeater

dequeue, getMarkup, onRender, renderChild

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, dequeuePreamble, findChildComponent, findComponentToDequeue, get, getAssociatedMarkup, getAssociatedMarkupStream, getMarkupType, getRegionMarkup, internalAdd, internalInitialize, iterator, iterator, newDequeueContext, onComponentTagBody, onInitialize, 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, newMarkupSourcingStrategy, onAfterRender, 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 java.lang.Iterable

forEach, spliterator

Constructor Details

DataView

protected DataView(String id,
 IDataProvider<T> dataProvider)

Parameters:

id - component id

dataProvider - data provider

DataView

protected DataView(String id,
 IDataProvider<T> dataProvider,
 long itemsPerPage)

Parameters:

id - component id

dataProvider - data provider

itemsPerPage - items per page

Method Details

getDataProvider

public IDataProvider<T> getDataProvider()

Returns:

data provider