org.apache.tapestry
Interface IDirect

All Superinterfaces:

IComponent, IDynamicInvoker, IRender, org.apache.hivemind.Locatable, org.apache.hivemind.LocationHolder

All Known Subinterfaces:

IForm

All Known Implementing Classes:

Autocompleter, DirectLink, Form, Go, InlineEditBox, ShowTemplate, Suggest

public interface IDirect
extends IComponent, IDynamicInvoker

Interface that defines classes that may be messaged by the direct service.

Method Summary

boolean	isStateful() Invoked by the direct service to query the component as to whether it is stateful.
void	trigger(IRequestCycle cycle) Invoked by the direct service to have the component perform the appropriate action.

Methods inherited from interface org.apache.tapestry.IComponent

addAsset, addBody, addComponent, enterActiveState, finishLoad, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getClientId, getComponent, getComponents, getContainedComponent, getContainer, getEventInvoker, getExtendedId, getId, getIdPath, getListeners, getMessages, getNamespace, getPage, getSpecification, getSpecifiedId, getTemplateTagName, isRendering, peekClientId, renderBody, setBinding, setClientId, setContainedComponent, setContainer, setId, setNamespace, setPage, setTemplateTagName

Methods inherited from interface org.apache.tapestry.IRender

render

Methods inherited from interface org.apache.hivemind.LocationHolder

setLocation

Methods inherited from interface org.apache.hivemind.Locatable

getLocation

Methods inherited from interface org.apache.tapestry.IDynamicInvoker

getUpdateComponents, isAsync, isJson

Method Detail

trigger

void trigger(IRequestCycle cycle)

Invoked by the direct service to have the component perform the appropriate action. The DirectLink component will notify its listener.

Parameters:

cycle - The current request.

isStateful

boolean isStateful()

Invoked by the direct service to query the component as to whether it is stateful. If stateful and no HttpSession is active, then a StaleSessionException is thrown by the service.

Returns:

Whether or not invocation should include state information and validate that a valid session exists when triggered.

Since:

2.3