info.magnolia.cms.servlets
Class CommandBasedMVCServletHandler

java.lang.Object
  info.magnolia.cms.servlets.MVCServletHandlerImpl
      info.magnolia.cms.servlets.CommandBasedMVCServletHandler

All Implemented Interfaces:

MVCServletHandler

Direct Known Subclasses:

AdminTreeMVCHandler, PageMVCHandler

public abstract class CommandBasedMVCServletHandler
extends MVCServletHandlerImpl

This implementation tries first to get a command form it's command catalogue. If none is found it will call the execute method of the default MVCServletHandlerImpl, which tries to execute through reflection a related method.

Version:

$Revision$ ($Author$)

Field Summary

Fields inherited from class info.magnolia.cms.servlets.MVCServletHandlerImpl

exception, request, response, VIEW_ERROR, VIEW_SUCCESS

Fields inherited from interface info.magnolia.cms.servlets.MVCServletHandler

VIEW_NOTHING

Constructor Summary

protected

CommandBasedMVCServletHandler(String name, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

Method Summary

String	execute(String commandName) Try to get the command from the catalog.
protected org.apache.commons.chain.Command	findCommand(String commandName) Used to get the command object.
String	getCatalogueName()
protected Context	getCommandContext(String commandName) The default implementation returns the current context.
protected String	getViewNameAfterExecution(String commandName, Context ctx) Default implementation returns the commandName itself.
void	setCatalogueName(String catalogueName)

Methods inherited from class info.magnolia.cms.servlets.MVCServletHandlerImpl

getCommand, getException, getExceptionStackTrace, getName, getRequest, getResponse, init, populateFromRequest, setCommand, setRequest, setResponse

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface info.magnolia.cms.servlets.MVCServletHandler

renderHtml

Constructor Detail

CommandBasedMVCServletHandler

protected CommandBasedMVCServletHandler(String name,
                                        javax.servlet.http.HttpServletRequest request,
                                        javax.servlet.http.HttpServletResponse response)

Parameters:

name -

request -

response -

Method Detail

execute

public String execute(String commandName)

Try to get the command from the catalog.

Specified by:

execute in interface MVCServletHandler

Overrides:

execute in class MVCServletHandlerImpl

Returns:

the name of the view to show (used in renderHtml)

getViewNameAfterExecution

protected String getViewNameAfterExecution(String commandName,
                                           Context ctx)

Default implementation returns the commandName itself.

Returns:

the view name returned by this execution

findCommand

protected org.apache.commons.chain.Command findCommand(String commandName)

Used to get the command object.

Returns:

the callable command object

getCommandContext

protected Context getCommandContext(String commandName)

The default implementation returns the current context.

Parameters:

commandName - the name of the command to be called

Returns:

the context to pass to the command

getCatalogueName

public String getCatalogueName()

Returns:

Returns the catalogueName.

setCatalogueName

public void setCatalogueName(String catalogueName)

Parameters:

catalogueName - The catalogueName to set.