org.apache.struts.action (Apache Struts API Documentation)

The action package is the core of the struts framework, providing the "Controller" aspect of a MVC model.

Related Documentation

Interface Summary
PlugIn	A PlugIn is a configuration wrapper for a module-specific resource or service that needs to be notified about application startup and application shutdown events (corresponding to when the container calls `init` and `destroy` on the corresponding ActionServlet instance).

Interface Summary

A PlugIn is a configuration wrapper for a module-specific resource or service that needs to be notified about application startup and application shutdown events (corresponding to when the container calls init and destroy on the corresponding ActionServlet instance).

Class Summary
Action	An Action is an adapter between the contents of an incoming HTTP request and the corresponding business logic that should be executed to process this request.
ActionError	An encapsulation of an individual error message returned by the `validate` method of an `ActionForm`, consisting of a message key (to be used to look up message text in an appropriate message resources database) plus up to four placeholder objects that can be used for parametric replacement in the message text. The placeholder objects are referenced in the message text using the same syntax used by the JDK `MessageFormat` class.
ActionErrors	A class that encapsulates the error messages being reported by the `validate()` method of an `ActionForm`.
ActionForm	An ActionForm is a JavaBean optionally associated with one or more `ActionMappings`.
ActionFormBean	An ActionFormBean is the definition of a form bean that is loaded from a `<form-bean>` element in the Struts configuration file.
ActionForward	An ActionForward represents a destination to which the controller, `RequestProcessor`, might be directed to perform a `RequestDispatcher.forward` or `HttpServletResponse.sendRedirect` to, as a result of processing activities of an `Action` class.
ActionMapping	An ActionMapping represents the information that the controller, `RequestProcessor`, knows about the mapping of a particular request to an instance of a particular `Action` class.
ActionMessage	An encapsulation of an individual message returned by the `validate` method of an `ActionForm`, consisting of a message key (to be used to look up message text in an appropriate message resources database) plus up to four placeholder objects that can be used for parametric replacement in the message text.
ActionMessages	A class that encapsulates messages.
ActionMessages.ActionMessageItem	This class is used to store a set of messages associated with a property/key and the position it was initially added to list.
ActionRedirect	A subclass of ActionForward which is designed for use in redirecting requests, with support for adding parameters at runtime.
ActionServlet	ActionServlet provides the "controller" in the Model-View-Controller (MVC) design pattern for web applications that is commonly known as "Model 2".
ActionServletWrapper	Provide a wrapper around an ActionServlet to expose only those methods needed by other objects.
DynaActionForm	Specialized subclass of `ActionForm` that allows the creation of form beans with dynamic sets of properties, without requiring the developer to create a Java class for each type of form bean. USAGE NOTE - Since Struts 1.1, the `reset` method no longer initializes property values to those specified in `<form-property>` elements in the Struts module configuration file.
DynaActionFormClass	Implementation of `DynaClass` for `DynaActionForm` classes that allow developers to define ActionForms without having to individually code all of the classes.
ExceptionHandler	An ExceptionHandler is configured in the Struts configuration file to handle a specific type of exception thrown by an `Action.execute` method.
ForwardingActionForward	A subclass of `ActionForward` that defaults the `redirect` attribute to `false`.
InvalidCancelException	Thrown when a token generated by the Cancel tag is found in the request, but the cancellable property for the Action Mapping is not set.
RedirectingActionForward	A subclass of ActionForward that defaults the `redirect` attribute to `true`.
RequestActionMapping	Subclass of `ActionMapping` that defaults the form bean scope to `request`.
RequestProcessor	RequestProcessor contains the processing logic that the ActionServlet performs as it receives each servlet request from the container.
SessionActionMapping	Subclass of `ActionMapping` that defaults the form bean scope to `session`.

Class Summary

Action

An Action is an adapter between the contents of an incoming HTTP request and the corresponding business logic that should be executed to process this request.

ActionError

An encapsulation of an individual error message returned by the validate method of an ActionForm, consisting of a message key (to be used to look up message text in an appropriate message resources database) plus up to four placeholder objects that can be used for parametric replacement in the message text.

The placeholder objects are referenced in the message text using the same syntax used by the JDK MessageFormat class.

ActionErrors

A class that encapsulates the error messages being reported by the validate() method of an ActionForm.

ActionForm

An ActionForm is a JavaBean optionally associated with one or more ActionMappings.

ActionFormBean

An ActionFormBean is the definition of a form bean that is loaded from a <form-bean> element in the Struts configuration file.

ActionForward

An ActionForward represents a destination to which the controller, RequestProcessor, might be directed to perform a RequestDispatcher.forward or HttpServletResponse.sendRedirect to, as a result of processing activities of an Action class.

ActionMapping

An ActionMapping represents the information that the controller, RequestProcessor, knows about the mapping of a particular request to an instance of a particular Action class.

ActionMessage

An encapsulation of an individual message returned by the validate method of an ActionForm, consisting of a message key (to be used to look up message text in an appropriate message resources database) plus up to four placeholder objects that can be used for parametric replacement in the message text.

ActionMessages

A class that encapsulates messages.

ActionMessages.ActionMessageItem

This class is used to store a set of messages associated with a property/key and the position it was initially added to list.

ActionRedirect

A subclass of ActionForward which is designed for use in redirecting requests, with support for adding parameters at runtime.

ActionServlet

ActionServlet provides the "controller" in the Model-View-Controller (MVC) design pattern for web applications that is commonly known as "Model 2".

ActionServletWrapper

Provide a wrapper around an ActionServlet to expose only those methods needed by other objects.

DynaActionForm

Specialized subclass of ActionForm that allows the creation of form beans with dynamic sets of properties, without requiring the developer to create a Java class for each type of form bean.

USAGE NOTE - Since Struts 1.1, the reset method no longer initializes property values to those specified in <form-property> elements in the Struts module configuration file.

DynaActionFormClass

Implementation of DynaClass for DynaActionForm classes that allow developers to define ActionForms without having to individually code all of the classes.

ExceptionHandler

An ExceptionHandler is configured in the Struts configuration file to handle a specific type of exception thrown by an Action.execute method.

ForwardingActionForward

A subclass of ActionForward that defaults the redirect attribute to false.

InvalidCancelException

Thrown when a token generated by the Cancel tag is found in the request, but the cancellable property for the Action Mapping is not set.

RedirectingActionForward

A subclass of ActionForward that defaults the redirect attribute to true.

RequestActionMapping

Subclass of ActionMapping that defaults the form bean scope to request.

RequestProcessor

RequestProcessor contains the processing logic that the ActionServlet performs as it receives each servlet request from the container.

SessionActionMapping

Subclass of ActionMapping that defaults the form bean scope to session.

Package org.apache.struts.action Description:

The action package is the core of the struts framework, providing the "Controller" aspect of a MVC model.

Package Specification

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