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Java Source Code / Java Documentation » J2EE » Enhydra Demos » barracudaDiscRack.presentation 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   barracudaDiscRack.presentation.BasePO

All known Subclasses:   barracudaDiscRack.presentation.discMgmt.Edit,  barracudaDiscRack.presentation.personMgmt.Register,  barracudaDiscRack.presentation.discMgmt.DiscCatalog,  barracudaDiscRack.presentation.personMgmt.Login,
BasePO
abstract public class BasePO implements HttpPresentation(Code)
This is the parent Presentaion object. All presentation objects should extend this class. The run method looks for an event parameter and then calls handle. If the "event" Parameter is not defined then the handleDefault() method is called in your child class.


Field Summary
public static  StringDISC_CATALOG_PAGE
    
public static  StringDISC_EVENT_CATALOG_PAGE
    
protected static  StringLOGIN_PAGE
    
final protected static  StringUSER_KEY
    
protected  HttpPresentationCommsmyComms
    
protected  PersonmyPerson
    
protected  DiscRackSessionDatamySessionData
    


Method Summary
protected  voidcheckForUserLogin()
    
public  BarracudaDiscRackEnhydragetApplication()
     Returns the application object associated with the current request.
public  HttpPresentationCommsgetComms()
    
public  XMLObjectgetPageContentForEvent(String event)
     If an event parameter is defined then this invokes the method that handles that event.
public  DiscRackSessionDatagetSessionData()
    
public  PersongetUser()
    
abstract public  XMLObjecthandleDefault()
     This is the procedure that is called if there is no "event" HTTP parameter found.
public  voidhandleEvent(HttpPresentationComms comms)
    
protected  voidinitSessionData(HttpPresentationComms comms)
    
abstract protected  booleanloggedInUserRequired()
     This method should be implemented in the subclass so that it returns true if this particular request requires the user to be logged in, otherwise false.
public  voidremoveUserFromSession()
    
public  voidrun(HttpPresentationComms comms)
     This implements the run method in HttpPresentation.
public  voidsetUser(Person thePerson)
    
public static  voidwriteDebugMsg(String msg)
    

Field Detail
DISC_CATALOG_PAGE
public static String DISC_CATALOG_PAGE(Code)



DISC_EVENT_CATALOG_PAGE
public static String DISC_EVENT_CATALOG_PAGE(Code)



LOGIN_PAGE
protected static String LOGIN_PAGE(Code)



USER_KEY
final protected static String USER_KEY(Code)



myComms
protected HttpPresentationComms myComms(Code)
Saved input and output context, and session data



myPerson
protected Person myPerson(Code)
Reference to the person logged in to the session



mySessionData
protected DiscRackSessionData mySessionData(Code)





Method Detail
checkForUserLogin
protected void checkForUserLogin() throws ClientPageRedirectException, DiscRackPresentationException(Code)
Checks the session data for a User, if not there then redirects to the login page



getApplication
public BarracudaDiscRackEnhydra getApplication()(Code)
Returns the application object associated with the current request. the application object.



getComms
public HttpPresentationComms getComms()(Code)
Gets HttpPresentation object The saved comms objectsto whichever subclass needs it



getPageContentForEvent
public XMLObject getPageContentForEvent(String event) throws Exception(Code)
If an event parameter is defined then this invokes the method that handles that event. event, the incoming event name
exception:
  Exception -



getSessionData
public DiscRackSessionData getSessionData()(Code)
Gets the session data session data



getUser
public Person getUser()(Code)
Gets the user from the session the person object in the session



handleDefault
abstract public XMLObject handleDefault() throws HttpPresentationException(Code)
This is the procedure that is called if there is no "event" HTTP parameter found. It must be overriden by the subclass to do default processing or error checking/handling. String The String representation of the HTML or (other format)of the document to be displayed. This method would need to be changedif you wanted to return binary data as well. It returns a Stringfor simplicity right now.



handleEvent
public void handleEvent(HttpPresentationComms comms) throws Exception(Code)
Method to call the proper method for the incoming event
Parameters:
  HttpPresentationComms -
exception:
  Exception -



initSessionData
protected void initSessionData(HttpPresentationComms comms) throws DiscRackPresentationException(Code)
Method to get or create the AgSessionData object from the user session This object is saved in the EbrokerPresentation object
Parameters:
  HttpPresentationComms -
exception:
  Exception -



loggedInUserRequired
abstract protected boolean loggedInUserRequired()(Code)
This method should be implemented in the subclass so that it returns true if this particular request requires the user to be logged in, otherwise false.



removeUserFromSession
public void removeUserFromSession()(Code)
Method to remove the current user from the session



run
public void run(HttpPresentationComms comms) throws Exception(Code)
This implements the run method in HttpPresentation.
Parameters:
  HttpPresentationComms -
exception:
  Exception -



setUser
public void setUser(Person thePerson) throws DiscRackPresentationException(Code)
Sets the user into the session thePerson, the person to be set in the session
exception:
  DiscRackPresentationException -



writeDebugMsg
public static void writeDebugMsg(String msg)(Code)
Method to write a debugging message to the debug log channel when the DEBUG flag is turned on
Parameters:
  msg - The message to write to the DEBUG log channel



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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