Package com.webobjects.appserver

Provides the WebObjects application server, session management classes, component classes, and classes to manage the request-response loop.

See:
Description

Interface Summary

WOActionResults	The WOActionResults interface is the return type for direct actions.
WODisplayGroup.Delegate	The WODisplayGroup delegate offers a number of methods, and WODisplayGroup invokes them as appropriate.

Class Summary

WOAction
WOAdaptor	The WOAdaptor class serves as the abstract superclass for all WebObjects application adaptors (e.g.
WOAdminAction	This class is intentionally undocumented.
WOApplication	The primary role of the WOApplication class is to coordinate the handling of HTTP requests.
WOApplication.Event	This is a subclass of WOEvent used by the WebObjects runtime to collect pageWithName events.
WOAssociation	The WOAssociation abstract class declares the programmatic interface to objects that represent the values of WebObject attributes, as specified in a declarations file.
WOAssociation.Event	The WOAssociation.Event class is used to time value assignment/retrieval at the component level.
WOComponent	WOComponent objects dynamically render web pages (or sections of pages) at runtime.
WOComponent.Event	The WOComponent.Event class is used to time various operations at the component level.
WOContext	A WOContext object lets you access objects and information that define the context of a transaction.
WOCookie	WOCookie is used for the creation and setting of cookies in response objects.
WODirectAction	WODirectAction is an abstract class that defines the interface for direct action classes.
WODisplayGroup	A WODisplayGroup is the basic user interface manager for a WebObjects application that accesses a database.
WODynamicElement	WODynamicElement is an abstract superclass for classes that generate dynamic elements: Either objects executing an operation (repetitions, conditions) or objects rendering themselves in any type of markup language like XML, HTML or PDF elements.
WOElement	The WOElement class is the abstract superclass of all objects that represent static and dynamic UI elements on a template page (for example, XML, HTML, WAP, PDF, etc...
WOEvent	WOEvent is a subclass of EOEvent (defined in the EOControl framework) that serves as the parent class for objects that gather information –such as duration –about various operations in WebObjects.
WOHTTPConnection	The WOHTTPConnection class is intended to be used as a client for HTTP communications.
WOMailDelivery	WOMailDelivery constructs an email message from a file and uses Sun's sun.net.smtp package to send it.
WOMessage	WOMessage is the parent class for both WORequest and WOResponse,and implements much of the behavior that is generic to both.
WOMultipartIterator	This class represents the content of a multipart/form-data HTTP request. You get the iterator for such a request by calling multipartIterator on the WORequest object.
WORedirect	WORedirect is a subclass of WOComponent that may be used to force the user's browser to redirect to another URL.
WORequest	A request object represents an event that requires a reaction from a WebObjects application.
WORequestHandler	WORequestHandler is an abstract class that defines request handlers.
WOResourceManager	The WOResourceManager class manages all resources of an application.
WOResponse	A WOResponse object represents an HTTP response that an application returns to a Web server to complete a cycle of the request-response loop.
WOSession	WOSession objects represent periods of user interaction during which access to a WebObjects application and its resources is granted to a particular client (typically a browser).
WOSessionStore	WOSessionStore, an abstract superclass, offers an object abstraction for storing client state per session.
WOStatisticsStore	This class holds various runtime statistics of an application.
WOStopWatch	Deprecated.
WOTimer	WOTimer creates timer objects, or more simply, timers.
WOWebServiceRegistrar
WOWebServiceUtilities

Exception Summary

WODOMParserException	This runtime exception class is thrown when there are problems parsing XML content into a DOM document.
WOPageNotFoundException	This is an runtime exception thrown if a requested page cannot be found.

Package com.webobjects.appserver Description

Provides the WebObjects application server, session management classes, component classes, and classes to manage the request-response loop.

Introduction

The WebObjects class hierarchy is rooted in the java.lang.Object class. The bulk of the WebObjects framework consists of several related groups of classes as well as a few individual classes.

The more commonly-used classes within the WebObjects framework can be grouped as follows:

• Server- and Application-Level Classes. WOAdaptor defines the interface for objects mediating the exchange of data between an HTTP server and a WebObjects application. WOApplication receives requests from the adaptor and initiates and coordinates the request-handling process, after which it returns a response to the adaptor.
• Session-Level Classes. WOSession encapsulates the state of a session; WOSession objects persist between the cycles of the request-response loop. WOSessionStore provides the strategy or mechanism through which WOSession objects are made persistent.
• Request-Level Classes. WORequest and WOResponse, along with their parent class WOMessage, store essential data about HTTP requests and responses, such as header information, form values, HTTP version, host and page name, and session, context, and sender IDs. WOContext provides access to the objects involved in the current cycle, such as the current request, response, session, and application objects.
• Page-Level Classes. WOComponent represents a reusable page (or portion of a page) for display in a Web browser. WOElement declares the three request-handling methods: takeValuesFromRequest, invokeActionForRequest, and appendToResponse. WODynamicElement is an abstract class for subclasses that generate particular dynamic elements. WOAssociation knows how to find and set a value by reference to a key.
• Database Integration-Level Classes. WODisplayGroup performs fetches, queries, creations, and deletions of records from tables in the database.