java.lang.Object
- org.apache.wicket.core.request.handler.AbstractPartialPageRequestHandler

All Implemented Interfaces:

IPageClassRequestHandler, IPageRequestHandler, IPartialPageRequestHandler, org.apache.wicket.request.IRequestHandler

Direct Known Subclasses:

AjaxRequestHandler
```
public abstract class AbstractPartialPageRequestHandler
extends Object
implements IPartialPageRequestHandler
```
Abstract IPartialPageRequestHandler that implements common methods for Ajax and Web-sockets specializations of IPartialPageRequestHandler

Constructor Summary

Constructors
Modifier Constructor Description

protected AbstractPartialPageRequestHandler(Page page)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(Component... components)`	Adds components to the list of components to be rendered.
`void`	`add(Component component, String markupId)`	Adds a component to the list of components to be rendered
`void`	`addChildren(MarkupContainer parent, Class<?> childCriteria)`	Visits all children of the specified parent container and adds them to the target if they are of same type as `childCriteria`
`void`	`appendJavaScript(CharSequence javascript)`	Add JavasSript that will be evaluated on the client side after components are replaced
`void`	`focusComponent(Component component)`	Sets the focus in the browser to the given component.
`IHeaderResponse`	`getHeaderResponse()`	Returns the header response associated with current handler.
`Page`	`getPage()`	Returns the page.
`Class<? extends IRequestablePage>`	`getPageClass()`	Returns the page class
`Integer`	`getPageId()`	Returns the page id.
`org.apache.wicket.request.mapper.parameter.PageParameters`	`getPageParameters()`
`Integer`	`getRenderCount()`	Returns the number of times this page has been rendered.
`protected abstract PartialPageUpdate`	`getUpdate()`
`boolean`	`isPageInstanceCreated()`	Checks if the page instance is already created or if it will be created when `IPageRequestHandler.getPage()` is called
`void`	`prependJavaScript(CharSequence javascript)`	Add JavaScript that will be evaluated on the client side before components are replaced.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.wicket.core.request.handler.IPartialPageRequestHandler
getComponents

Methods inherited from interface org.apache.wicket.request.IRequestHandler
detach, respond

- Constructor Detail
  - AbstractPartialPageRequestHandler
```
protected AbstractPartialPageRequestHandler(Page page)
```
- Method Detail
  - addChildren
```
public final void addChildren(MarkupContainer parent,
                              Class<?> childCriteria)
```
    Description copied from interface: IPartialPageRequestHandler
    
    Visits all children of the specified parent container and adds them to the target if they are of same type as childCriteria
    
    Specified by:
    
    addChildren in interface IPartialPageRequestHandler
    
    Parameters:
    
    parent - Must not be null.
    
    childCriteria - Must not be null. If you want to traverse all components use ` Component.class as the value for this argument.
  - add
```
public final void add(Component... components)
```
    Description copied from interface: IPartialPageRequestHandler
    
    Adds components to the list of components to be rendered.
    
    Specified by:
    
    add in interface IPartialPageRequestHandler
    
    Parameters:
    
    components - components to be rendered
  - getPageId
```
public final Integer getPageId()
```
    Description copied from interface: IPageRequestHandler
    
    Returns the page id.
    
    Specified by:
    
    getPageId in interface IPageRequestHandler
    
    Returns:
    
    page id
  - getRenderCount
```
public final Integer getRenderCount()
```
    Description copied from interface: IPageRequestHandler
    
    Returns the number of times this page has been rendered.
    
    Specified by:
    
    getRenderCount in interface IPageRequestHandler
    
    Returns:
    
    the number of times this page has been rendered.
    
    See Also:
    
    IRequestablePage.getRenderCount()
  - getPageParameters
```
public final org.apache.wicket.request.mapper.parameter.PageParameters getPageParameters()
```
    Specified by:
    
    getPageParameters in interface IPageClassRequestHandler
    
    Returns:
    
    page parameters
  - add
```
public final void add(Component component,
                      String markupId)
```
    Description copied from interface: IPartialPageRequestHandler
    
    Adds a component to the list of components to be rendered
    
    Specified by:
    
    add in interface IPartialPageRequestHandler
    
    Parameters:
    
    component - component to be rendered
    
    markupId - id of client-side dom element that will be updated
  - prependJavaScript
```
public final void prependJavaScript(CharSequence javascript)
```
    Description copied from interface: IPartialPageRequestHandler
    Add JavaScript that will be evaluated on the client side before components are replaced.
    If the JavaScript needs to do something asynchronously (i.e. uses window.setTimeout(), for example to do animations), it may call Wicket.Ajax.suspendCall() to suspend the evaluation of the current Ajax call. The returned function has to be called when the asynchronous task is finished, after which the evaluation of the Ajax call is continued, e.g.
    target.prependJavaScript("var continueCall = Wicket.Ajax.suspendCall(); try { ... } finally { continueCall(); }");
    Important: it is recommended to execute your code in try/finally to make sure the function is executed even if an error happens in your code, otherwise all following scripts and component replacements wont be made.
    Specified by:
    
    prependJavaScript in interface IPartialPageRequestHandler
  - appendJavaScript
```
public final void appendJavaScript(CharSequence javascript)
```
    Description copied from interface: IPartialPageRequestHandler
    Add JavasSript that will be evaluated on the client side after components are replaced
    If the JavaScript needs to do something asynchronously (i.e. uses window.setTimeout(), for example to do animations), it may call Wicket.Ajax.suspendCall() to suspend the evaluation of the current Ajax call. The returned function has to be called when the asynchronous task is finished, after which the evaluation of the Ajax call is continued, e.g.
    target.appendJavaScript("var continueCall = Wicket.Ajax.suspendCall(); try { ... } finally { continueCall(); }");
    Important: it is recommended to execute your code in try/finally to make sure the function is executed even if an error happens in your code, otherwise all following scripts and component replacements wont be made.
    Specified by:
    
    appendJavaScript in interface IPartialPageRequestHandler
  - focusComponent
```
public final void focusComponent(Component component)
```
    Description copied from interface: IPartialPageRequestHandler
    
    Sets the focus in the browser to the given component. The markup id must be set. If the component is null the focus will not be set to any component.
    
    Specified by:
    
    focusComponent in interface IPartialPageRequestHandler
    
    Parameters:
    
    component - The component to get the focus or null.
  - isPageInstanceCreated
```
public final boolean isPageInstanceCreated()
```
    Description copied from interface: IPageRequestHandler
    
    Checks if the page instance is already created or if it will be created when IPageRequestHandler.getPage() is called
    
    Specified by:
    
    isPageInstanceCreated in interface IPageRequestHandler
    
    Returns:
    
    true iff page instance is already created
  - getHeaderResponse
```
public final IHeaderResponse getHeaderResponse()
```
    Description copied from interface: IPartialPageRequestHandler
    
    Returns the header response associated with current handler. Beware that only renderOnDomReadyJavaScript and renderOnLoadJavaScript can be called outside the renderHeader(IHeaderResponse response) method. Calls to other render** methods will result in the call failing with a debug-level log statement to help you see why it failed.
    
    Specified by:
    
    getHeaderResponse in interface IPartialPageRequestHandler
    
    Returns:
    
    header response
  - getUpdate
```
protected abstract PartialPageUpdate getUpdate()
```
  - getPage
```
public final Page getPage()
```
    Description copied from interface: IPageRequestHandler
    
    Returns the page. Be aware that the page can be instantiated if this wasn't the case already.
    
    Specified by:
    
    getPage in interface IPageRequestHandler
    
    Returns:
    
    page instance
    
    See Also:
    
    IPageRequestHandler.getPage()
  - getPageClass
```
public final Class<? extends IRequestablePage> getPageClass()
```
    Description copied from interface: IPageClassRequestHandler
    
    Returns the page class
    
    Specified by:
    
    getPageClass in interface IPageClassRequestHandler
    
    Returns:
    
    page class

Class AbstractPartialPageRequestHandler

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.wicket.core.request.handler.IPartialPageRequestHandler

Methods inherited from interface org.apache.wicket.request.IRequestHandler

Constructor Detail

AbstractPartialPageRequestHandler

Method Detail

addChildren

add

getPageId

getRenderCount

getPageParameters

add

prependJavaScript

appendJavaScript

focusComponent

isPageInstanceCreated

getHeaderResponse

getUpdate

getPage

getPageClass