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## org.apache.struts.actions
Class SwitchAction

    java.lang.Object
      |
      +--org.apache.struts.action.Action
            |
            +--org.apache.struts.actions.SwitchAction

public class SwitchAction
extends Action

A standard Action that switches to a new module and then forwards control to a URI (specified in a number of possible ways) within the new module.

Valid request parameters for this Action are:

- page - Module-relative URI (beginning with "/") to which control should be forwarded after switching.
- prefix - The module prefix (beginning with "/") of the module to which control should be switched. Use a zero-length string for the default module. The appropriate `ModuleConfig` object will be stored as a request attribute, so any subsequent logic will assume the new module.

Since:
  Struts 1.1
Version:
  $Revision: 1.1 $ $Date: 2003-08-22 09:14:33 +0100 (Fri, 22 Aug 2003) $
Author:
  Craig R. McClanahan

Field Summary
`protected static org.apache.commons.logging.Log` | `log` Commons Logging instance.
`protected static MessageResources` | `messages` The message resources for this package.

Fields inherited from class org.apache.struts.action.Action
`ACTION_SERVLET_KEY, APPLICATION_KEY, DATA_SOURCE_KEY, defaultLocale, ERROR_KEY, EXCEPTION_KEY, FORM_BEANS_KEY, FORWARDS_KEY, LOCALE_KEY, MAPPING_KEY, MAPPINGS_KEY, MESSAGE_KEY, MESSAGES_KEY, MULTIPART_KEY, PLUG_INS_KEY, REQUEST_PROCESSOR_KEY, servlet, SERVLET_KEY, TRANSACTION_TOKEN_KEY`

Constructor Summary
`SwitchAction()`

Method Summary
`ActionForward` | `execute(ActionMapping mapping, ActionForm form, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)` Process the specified HTTP request, and create the corresponding HTTP response (or forward to another web component that will create it), with provision for handling exceptions thrown by the business logic.

Methods inherited from class org.apache.struts.action.Action
`execute, generateToken, getDataSource, getDataSource, getLocale, getResources, getResources, getResources, getServlet, isCancelled, isTokenValid, isTokenValid, perform, perform, resetToken, saveErrors, saveMessages, saveToken, setLocale, setServlet, toHex`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### log

    protected static org.apache.commons.logging.Log log

  Commons Logging instance.

### messages

    protected static MessageResources messages

  The message resources for this package.

Constructor Detail

### SwitchAction

    public SwitchAction()

Method Detail

### execute

    public ActionForward execute(ActionMapping mapping,
                                 ActionForm form,
                                 javax.servlet.http.HttpServletRequest request,
                                 javax.servlet.http.HttpServletResponse response)
                          throws java.lang.Exception

  Process the specified HTTP request, and create the corresponding HTTP response (or forward to another web component that will create it), with provision for handling exceptions thrown by the business logic.

  Overrides:
    `execute` in class `Action`
  Parameters:
    `mapping` - The ActionMapping used to select this instance
    `form` - The optional ActionForm bean for this request (if any)
    `request` - The HTTP request we are processing
    `response` - The HTTP response we are creating
  Throws:
    `java.lang.Exception` - if the application business logic throws an exception

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