Java Doc for BasePO.java in  » J2EE » Enhydra-Demos » discRack » presentation » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Enhydra Demos » discRack.presentation   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    discRack.presentation.BasePO All known Subclasses:   discRack.presentation.discMgmt.DiscCatalog,  discRack.presentation.discMgmt.Edit,  discRack.presentation.personMgmt.Register,  discRack.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 protected static  String DISC_CATALOG_PAGE      protected static  String LOGIN_PAGE      final protected static  String USER_KEY      protected  HttpPresentationComms myComms      protected  Person myPerson      protected  DiscRackSessionData mySessionData      Method Summary protected  void checkForUserLogin()      public  DiscRack getApplication()      Returns the application object associated with the current request. public  HttpPresentationComms getComms()      public  XMLObject getPageContentForEvent(String event)      If an event parameter is defined then this invokes the method that handles that event. public  DiscRackSessionData getSessionData()      public  Person getUser()      abstract public  XMLObject handleDefault()      This is the procedure that is called if there is no "event" HTTP parameter found. public  void handleEvent(HttpPresentationComms comms)      protected  void initSessionData(HttpPresentationComms comms)      abstract protected  boolean loggedInUserRequired()      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  void removeUserFromSession()      public  void run(HttpPresentationComms comms)      This implements the run method in HttpPresentation. public  void setUser(Person thePerson)      public static  void writeDebugMsg(String msg)      Field Detail DISC_CATALOG_PAGE protected static String DISC_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 DiscRack 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. Parameters:   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:   comms - 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:   comms - 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:   comms - HttpPresentationComms exception:   Exception - setUser public void setUser(Person thePerson) throws DiscRackPresentationException(Code) Sets the user into the session Parameters:   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)