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

Class DataViewBase<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>

Type Parameters:

T - Model object type

All Implemented Interfaces:

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

Direct Known Subclasses:

DataView, GridView

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

Base class for data views. 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.

Author:

Igor Vaynberg (ivaynberg)

See Also:

• IDataProvider
• DataView
• IPageable
• RefreshingView
• 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

Constructor	Description
DataViewBase(String id, IDataProvider<T> dataProvider)

Method Summary

Modifier and Type	Method	Description
protected final Iterator<IModel<T>>	getItemModels(long offset, long count)	Returns an iterator over models for items in the current page
protected final IDataProvider<T>	internalGetDataProvider()
protected final long	internalGetItemCount()
protected void	onDetach()	Called to allow a component to detach resources after use.

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

DataViewBase

public DataViewBase(String id,
 IDataProvider<T> dataProvider)

Parameters:

id - component id

dataProvider - data provider

Method Details

internalGetDataProvider

protected final IDataProvider<T> internalGetDataProvider()

Returns:

data provider associated with this view

getItemModels

protected final Iterator<IModel<T>> getItemModels(long offset,
 long count)

Description copied from class: AbstractPageableView

Returns an iterator over models for items in the current page

Specified by:

getItemModels in class AbstractPageableView<T>

Parameters:

offset - index of first item in this page

count - number of items that will be shown in the current page

Returns:

an iterator over models for items in the current page

internalGetItemCount

protected final long internalGetItemCount()

Specified by:

internalGetItemCount in class AbstractPageableView<T>

Returns:

total item count

onDetach

protected void onDetach()

Description copied from class: Component

Called to allow a component to detach resources after use. Overrides of this method MUST call the super implementation, the most logical place to do this is the last line of the override method.

Overrides:

onDetach in class AbstractPageableView<T>

See Also:

• AbstractPageableView.onDetach()