Package org.apache.tapestry.engine

Implementations of the IEngine interface, including the standard implementation: BaseEngine.

See:
Description

Interface Summary

IEngineService	A service, provided by the IEngine, for its pages and/or components.
ILink	Define a link that may be generated as part of a page render.
IPageLoader	Interface exposed to components as they are loaded by the page loader.
IPageRecorder	Defines an object that can observe changes to properties of a page and its components, store the state of the page between request cycles, and restore a page's state on a subsequent request cycle.
IPageSource	Abstracts the process of loading pages from thier specifications as well as pooling of pages once loaded.
IPropertySource	A source for configuration properties.
IScriptSource	Provides access to an IScript.
ISpecificationSource	Defines access to component specifications.
ITemplateSourceDelegate	Acts as a delegate to the TemplateSource, providing access to page and component templates after the normal search mechanisms have failed.
ServiceEncoder	Encapsulates the logic for encoding and decoding service requests.
ServiceEncoding	Contains the information needed to encode a request for a service; the servlet path plus and query parameters.

Class Summary

AbstractEngine	Basis for building real Tapestry applications.
BaseEngine	Concrete implementation of IEngine used for ordinary applications.
DefaultScriptSource	Provides basic access to scripts available on the classpath.
DirectEventService	Implementation of the direct event service, which encodes the page and component id in the service context, and passes application-defined parameters as well.
DirectEventServiceParameter	Parameter object used by DirectEventService.
DirectService	Implementation of the direct service, which encodes the page and component id in the service context, and passes application-defined parameters as well.
DirectServiceParameter	Parameter object used by DirectService.
EngineMessages
EngineServiceLink	A EngineServiceLink represents a possible action within the client web browser; either clicking a link or submitting a form, which is constructed primarily from the servlet path, with some additional query parameters.
EngineUtils	Utilities needed by engine services and etc.
ExternalService	The external service enables external applications to reference Tapestry pages via a URL.
ExternalServiceParameter	Parameter for the ExternalService.
HomeService	An implementation of the home service that renders the Home page.
Namespace	Implementation of INamespace that works with a NamespaceResources to obtain page and component specifications as needed.
NullWriter	A IMarkupWriterthat does absolutely nothing; this is used during the rewind phase of the request cycle when output is discarded anyway.
PageService	Basic server for creating a link to another page in the application.
RequestCycle	Provides the logic for processing a single request cycle.
RequestCycleEnvironment	An object that contains all the invariant parameters to the RequestCycle.RequestCycle(org.apache.tapestry.IEngine, org.apache.tapestry.util.QueryParameterMap, String, RequestCycleEnvironment) constructor.
ResetService	ServiceLink used to discard all cached data (templates, specifications, et cetera).
RestartService	Restarts the Tapestry application.
ServiceEncodingImpl	Implementation of ServiceEncoding, which adds the ability to determine when the encoding has been modified.

Package org.apache.tapestry.engine Description

Implementations of the IEngine interface, including the standard implementation: BaseEngine. Also located here are default implementations of all the basic support objects, including RequestCycle (which implements IRequestCycle).

Author:

Howard Lewis Ship hlship@apache.org