caltool.model.view

Class Lists

java.lang.Object

java.util.Observable

mvp.Model

caltool.model.view.Lists

All Implemented Interfaces:

java.io.Serializable

public class Lists
extends mvp.Model

Class Lists is the model class that encapsulates the View->Lists commands. These are commands to list appointments, meetings, tasks, events, and all items. Lists also has a reference to the CustomLists class, which has methods and data to support editing custom lists of items.

There are couple design alternatives for this class. In Alternative 1, the way the class is currently designed, this Lists class supplies array-returning methods that trace to the operations in the abstract spec. These methods have been refined to return array values intstead of whole model objects. This refinement supports the companion view classes that are implemented as JTables, the rows of which are easily populated with array-valued data.

Alternative 2, not currently implemented, would be patterned after the current MontlyAgenda/MonthlyAgendaDisplay design. In this version of the design,, the Lists class would have data fields that point to instances of AppointmentLists, etc, and each such list class would provide iterator methods, a la MontlyAgenda. In this case, the traceable viewAppointmentsList method returns a (persistent) AppointmentList object that serves as the appointment list factory, a la MonthlyAgenda.

Alternative 1 is more directly traceable to the spec, and more functional in style, since the return values of the methods are not persistent objects. Alternative 2 can be considered more object-oriented in style, with its persistent object instances and iterator methods. I see no real qualitative difference between the two designs, only a stylistic difference.

See Also:

Serialized Form

Field Summary

Fields inherited from class mvp.Model

view

Constructor Summary

Constructors

Constructor and Description
Lists(CalendarDB caldb)

Method Summary

Modifier and Type	Method and Description
protected java.lang.Object[]	generateSampleList() Generate a sample appointments list for initial view testing.
java.lang.Object[]	viewAppointmentsList() List all appointments between the current list-start and list-end option settings.

Methods inherited from class mvp.Model

dump, exit, getView, setView

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

Lists

public Lists(CalendarDB caldb)

Method Detail

viewAppointmentsList

public java.lang.Object[] viewAppointmentsList()

List all appointments between the current list-start and list-end option settings. The default start/end setting is the three-week period starting one week prior to today's date through two weeks after today's date. The list of values is returned in an array of AppointmentListItems . The current implementation is a stub that returns a sample list with values taken from Figure 32 of the requirements.

generateSampleList

protected java.lang.Object[] generateSampleList()

Generate a sample appointments list for initial view testing. The list is based on ../../requirements/list-viewing.html#Figure Basic Appointments List> Figure 32 of the requirements, with additional data added to reflect that which is not visible in the default 20-line view. The data were generated with the assistance of Emacs editing macros.