Action
Represents the <action> element (
org.apache.struts.action.Action) in the Struts configutation
file. 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. The action package is the core of
the Struts framework, representing the Controller layer of a MVC
model.
The icon you initially insert into the Page Flow Modeler diagram has a yellow warning icon overlaid, as shown:
This indicates that you have not yet associated an action class with the action element. After you double-click and associate and action class with the element, the icon appears appear without the warning icon.
Action with Include
Represents the <action> element (
org.apache.struts.action.Action) in the Struts configutation
file. This icon only appears in the Page Flow Diagram after you set
the value for the include attribute of an action. The
value of the include attribute is a context-relative
path for a web application resource that is to process the request
using RequestDispatcher.include rather than
instantiating and calling the Action class or subclass. You must set
one of the attributes include, forward, or
type for an action; these attributes are mutually exclusive.
Action Mappings
Represents the <action-mappings> element in the
Struts configutation file. This element contains a series of zero or
more <action> elements and their properties. The
Action Mappings container icon appears only in the Structure window.
See About the Struts
Page Flow in Web Applications.
Attachment
Represents an attachment to a note for an element on a diagram. See Adding an Element to a Struts Page Flow Diagram and Creating and Attaching Notes to Diagram Elements.
Controller
Represents the <controller> element, which
describes the ControllerConfig bean (
org.apache.struts.config.ControllerConfig) that contains an
application module's runtime configuration.
Data Source
Represents a <data-source> element in the Struts
configutation file. You define data sources, for example, when you
want to use an action handler to establish a connection for the
application. The Data Source icon appears only in the Structure
window.
Data Sources
Represents the <data-sources> element, which
contains the <data source> elements in the Struts
configutation file. This icon appears only in the Structure window.
Exception
Represents an <exception> element, defined within
an <action> or <global-exceptions>
element, in the Struts configutation file. An ExceptionHandler is configured
in the Struts configuration file to handle a specific type of
exception thrown by an Action's execute method.
Form Bean
Represents the <form-beans> element (
org.apache.struts.config.FormBeanConfig) in the Struts
configutation file. Form beans are descriptors that are used to
create ActionForm instances at runtime. See
Creating a Struts Form Bean.
Form Beans
Represents the <form-beans> element, which
contains all <form-bean> elements in the Struts
configutation file. This icon appears only in the Structure window.
See Creating a Struts
Form Bean.
Form Property
Represents the <set-property> definitions of an
existing <form-property> definition in the Struts
configutation file.
Forward
Represents the forward definition in an action
element. This is the destination to which the Struts controller servlet,
ActionServlet, is directed to perform a
RequestDispatcher.forward() or
HttpServletResponse.sendRedirect() to, as a result of
processing activities of an Action class. There can be multiple
forwards for each action element. See
About the Struts Page Flow in Web Applications. This icon appears only in
the Structure window.
Forward
Sets the path attribute for the local forward for an action
. You can rename the forward by clicking on it and changing its properties in
the Property Inspector.
Global Exceptions
Represents the <global-exceptions> element in the
Struts configutation file. You can define an ExceptionHandler to
execute when an Action's execute method throws an Exception. First,
you need to subclass org.apache.struts.action.ExceptionHandler
and override the execute method. Your execute method should process the
Exception and return an ActionForward object to tell Struts where to
forward to next. This icon appears only in the Structure window.
Global Forwards
Represents the <global-forwards> element, which
contains definitions for the forwards that can be used by all
actions in the application. Forwards are instances of the
ActionForward class returned from an ActionForm's execute
method.This icon appears only in the Structure window.
Message Resources
Represents the <message-resources> element in the
Struts configutation file. See
About Struts Properties Files and Resource Bundles.
Note
Represents a graphical object on a diagram that contains textual information about the diagram or about a diagram element. A note can be attached to one or more elements. A note is stored as part of the current diagram is not a separate file system element. See Adding an Element to a Struts Page Flow Diagram and Creating and Attaching Notes to Diagram Elements.
Page
Represents a standalone presentation page (JSP page, JSPX page, HTML page) in the current web context. No Struts action is associated with this page. Use the Page element instead of the Page Forward if you specifically do not want to create a forward action for the web page in your page flow. See About the Struts Page Flow in Web Applications.
The icon you initially insert into the Page Flow Diagram is overlaid with a yellow warning icon. This indicates that you have not yet associated a web page with the page forward element. After you double-click and associate a web page with the element, the icon appears without the warning.
Page Forward
Represents a Struts forward action, which performs a simple forward
to the destination (the context-relative URI such as a JSP page,JSPX
page, or HTML page) specified by the forward attribute
of the action. See
About the Struts Page Flow in Web Applications.
The icon you initially insert into the Page Flow Diagram is overlaid with a yellow warning icon. This indicates that you have not yet associated a web page with the page forward element. After you double-click and associate a web page with the element, the icon appears without the warning.
Page Link
Represents a link from a web page in the Struts Page Flow Modeler to another page or an action. See Defining a Struts Action Forward in the Page Flow Diagram and Adding a Struts Navigation Link in the Page Flow Diagram.
Plug-in
Represents a <plug-in> element (an implementation
of org.apache.struts.action.PlugIn) in the Struts
configutation file. This element specifies a fully qualified class
name of a plugin module that allows a Struts application to find
resources dynamically when the application starts.
Plug-ins
Contains the configuration information for all <plug-in>
elements in a Struts configuration file.
Set Property
Represents the <set-property> element, which
allows you to set additional JavaBean configuration properties in
certain elements in the Struts configutation file.
Struts Actions
The Struts Actions package provides special adapters between the incoming HTTP request and the corresponding business logic.
Struts Config
Represents the Struts module configuration file. This icon appears only in the Structure window. See About the Struts Page Flow in Web Applications.