org.apache.wicket.markup.html.image
Class NonCachingImage

java.lang.Object
  org.apache.wicket.Component
      org.apache.wicket.markup.html.WebComponent
          org.apache.wicket.markup.html.image.Image
              org.apache.wicket.markup.html.image.NonCachingImage

All Implemented Interfaces:

Serializable, IEventSink, IEventSource, IConverterLocator, IRequestListener, IResourceListener, IHeaderContributor, IRequestableComponent, IHierarchical<Component>, IClusterable

public class NonCachingImage
extends Image

A subclass of Image that always adds random noise to the url every request to prevent the browser from caching the image.

Author:

Igor Vaynberg (ivaynberg)

See Also:

Image.shouldAddAntiCacheParameter(), Serialized Form

Field Summary

Fields inherited from class org.apache.wicket.Component

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

Fields inherited from interface org.apache.wicket.IResourceListener

INTERFACE

Constructor Summary

NonCachingImage(String id)
Construct.

NonCachingImage(String id, IModel<?> model)
Construct.

NonCachingImage(String id, IResource imageResource)
Construct.

NonCachingImage(String id, ResourceReference resourceReference)
Construct.

NonCachingImage(String id, ResourceReference resourceReference, PageParameters resourceParameters)
Construct.

NonCachingImage(String id, String string)
Construct.

Method Summary

protected boolean

shouldAddAntiCacheParameter() Overriden to precent caching.

Methods inherited from class org.apache.wicket.markup.html.image.Image

addAntiCacheParameter, canCallListenerInterface, getImageResource, getImageResourceReference, getStatelessHint, initModel, onComponentTag, onComponentTagBody, onResourceRequested, setDefaultModel, setImageResource, setImageResourceReference, setImageResourceReference

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

onRender

Methods inherited from class org.apache.wicket.Component

add, addStateChange, afterRender, beforeRender, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, clearOriginalDestination, configure, continueToOriginalDestination, debug, detach, detachModel, detachModels, determineVisibility, error, exceptionMessage, fatal, findMarkupStream, findPage, findParent, findParentWithAssociatedMarkup, get, 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, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getRequestFlag, getResponse, getSession, getSizeInBytes, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, internalInitialize, internalOnModelChanged, internalPrepareForRender, internalRenderComponent, isActionAuthorized, isAuto, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isRenderAllowed, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, markRendering, modelChanged, modelChanging, newMarkupSourcingStrategy, onAfterRender, onAfterRenderChildren, onBeforeRender, onConfigure, onDetach, onEvent, onInitialize, onModelChanged, onModelChanging, onRemove, prepareForRender, redirectToInterceptPage, remove, remove, render, renderComponentTag, rendered, renderHead, renderHead, renderHead, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, send, setAuto, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setIgnoreAttributeModifier, setMarkup, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setParent, setRenderBodyOnly, setRequestFlag, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, success, toString, toString, urlFor, urlFor, urlFor, urlFor, urlFor, visitParents, visitParents, warn, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

NonCachingImage

public NonCachingImage(String id,
                       IModel<?> model)

Construct.

Parameters:

id -

model -

See Also:

Image.Image(String, IModel)

NonCachingImage

public NonCachingImage(String id,
                       IResource imageResource)

Construct.

Parameters:

id -

imageResource -

See Also:

Image.Image(String, org.apache.wicket.request.resource.IResource)

NonCachingImage

public NonCachingImage(String id,
                       ResourceReference resourceReference,
                       PageParameters resourceParameters)

Construct.

Parameters:

id -

resourceReference -

resourceParameters -

See Also:

Image.Image(String, org.apache.wicket.request.resource.ResourceReference, org.apache.wicket.request.mapper.parameter.PageParameters)

NonCachingImage

public NonCachingImage(String id,
                       ResourceReference resourceReference)

Construct.

Parameters:

id -

resourceReference -

See Also:

Image.Image(String, ResourceReference)

NonCachingImage

public NonCachingImage(String id,
                       String string)

Construct.

Parameters:

id -

string -

See Also:

Image.Image(String, String)

NonCachingImage

public NonCachingImage(String id)

Construct.

Parameters:

id -

See Also:

Image.Image(String)

Method Detail

shouldAddAntiCacheParameter

protected boolean shouldAddAntiCacheParameter()

Overriden to precent caching.

Overrides:

shouldAddAntiCacheParameter in class Image

Returns:

always true