Action

implements Serializable

webwork.action.Action

Known Indirect Subclasses

ActionListing, ActionSupport, Add, AgeList, AppendIteratorFilter, Bar, BeanUtilTest, BookList, CDList, CardPane, CascadingSelectTest, Checkout, ClientInfo, ComputePrice, CountryMap, and 47 others.

ActionListing	Read list of actions and view mappings
ActionSupport	This is a useful base class for WebWork Action implementations.
Add	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
AgeList	A list of ages
AppendIteratorFilter	A bean that takes several iterators and outputs them in sequence
Bar	`Bar`
BeanUtilTest	Test util.BeanUtil
BookList	A list of books
CDList	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
CardPane	Implement functionality similar to how java.awt.CardLayout works for templating web pages.
CascadingSelectTest
Checkout	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
ClientInfo	A utility class for extracting browser information from the client.
ComputePrice	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
CountryMap	A map of countries in a couple of continents
Delete	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
ExprFormTest	A simple form that tests the expression language's ability to get and set properties.
FileUploadTest	Multi-part action
Foo	`Foo`
FormTest	A simple form
GenderMap	A list of genders
HelloAction	Minimal Action implementation
HelloWorld	Hello World action.
HitUrl	Load content from a given URL
IteratorGenerator	A bean that generates an iterator filled with a given object
JDOMTest	Simple JDOM test.
JDOMUrl	A simple Action used to fetch a remote URL, parse it using JDOM, and make the result available to the View.
JSP	JSP execution wrapper.
Language	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
LanguageList	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
LoanCalc
Login	Login for the HelloWorld example.
LoginCounter	This code is an adaptation of the EventHandler example from the Rocks homepage by Christian Cryder http://xmlc.enhydra.org/EventHandler/
LoginStatus	Login status of user.
Logout	This code is an adaptation of the EventHandler example from the Rocks homepage by Christian Cryder http://xmlc.enhydra.org/EventHandler/
MergeIteratorFilter	A bean that takes several iterators and outputs the merge of them.
MonthList	List of days in month
MonthSelector	Month selector
MultiForm	A form which has two data objects.
NoContent	Set the response status to 204 NO_CONTENT.
NumberGuess
OrderList	A list of orders each with a list of line items
Primes
Redirect	Redirect to a given URL.
Referrer	Redirect to the page that referred this action invocation.
Restart	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
RssReader	Used to access the RSS file containing the feed sources
RssSources	Used to access the RSS file containing the feed sources
Script	Script execution wrapper.
ServletTest
Shop	This code is an adaptation of the I18N example from the JavaWorld article by Govind Seshadri.
SortIteratorFilter	A bean that takes an iterator and outputs a subset of it.
SubsetIteratorFilter	A bean that takes an iterator and outputs a subset of it.
SystemInfo	This action samples some virtual machine runtime information.
TabbedPaneTest
TableAction
Test	Simple test action.
Transfer	This code is an adaptation of the Struts example from the JavaWorld article by Thor Kristmundsson.
UserRegistration
VXMLTest	Simple VXML test.
XML	XML "execution" wrapper.
XSLTTest	Test action for XSLT view layer.

Class Overview

All Actions must minimally implement this interface. It provides the execute method, which is done by actions to perform whatever their purpose is.

Summary

Constants
String	ERROR	The action execution was a failure.
String	INPUT	The action execution require more input in order to succeed.
String	LOGIN	The action could not execute, since the user most was not logged in.
String	NONE	The action execution was successful but do not show a view.
String	SUCCESS	The action execution was successful.

Public Methods
String	execute() This method is where the logic of the action is executed.

Constants

public static final String ERROR

The action execution was a failure. Show an error view, possibly asking the user to retry entering data.

Constant Value: "error"

public static final String INPUT

The action execution require more input in order to succeed. This result is typically used if a form handling action has been executed so as to provide defaults for a form. The form associated with the handler should be shown to the end user.

This result is also used if the given input parameters are invalid, meaning the user should try providing input again.

Constant Value: "input"

public static final String LOGIN

The action could not execute, since the user most was not logged in. The login view should be shown.

Constant Value: "login"

public static final String NONE

The action execution was successful but do not show a view. This is useful for actions that are handling the view in another fashion like redirect.

Constant Value: "none"

public static final String SUCCESS

The action execution was successful. Show result view to the end user.

Constant Value: "success"

Public Methods

public String execute ()

This method is where the logic of the action is executed. Parameters are passed by calling set-methods, or by implementing the ParameterAware interface.

Returns

a string representing the logical result of the execution. See constants in this interface for a list of standard result values.

Throws

Exception	thrown if a system level exception occurs. Application level exceptions should be handled by returning an error value, such as Action.ERROR.

Interfaces

Classes

Exceptions