Class SelectionModel

Object
   |
   +--OObject
         |
         +--Observer
               |
               +--Model
                     |
                     +--ScalarModel
                           |
                           +--SelectionModel

Direct Known Subclasses:

AccountSelectionModel

class SelectionModel

extends ScalarModel

This class encapsulates the data model for a selector which indicates the currently selected item in a specified Collection data model. This means that the range of legal values for this model's value is [0..Collection.getCount()-1] plus a "nothing selected" value.
See:

- konstructor()

Constructor Detail

SelectionModel

SelectionModel()

See:
- konstructor()
Author: Bruce Wallace (PolyGlotInc.com)
Version: 1.0

_select

void _select(<Object> k)

select the specified Collection item but dont publish

Parameters:
k - key of item to select

_unselect

void _unselect( )

select the zero-th item (NOT "nothing selected") but dont publish

getCount

Object getCount( )

return the size of our Collection model

getDescription

String getDescription(i)

return the currently selected Collection item formatted as description

getIndex

int getIndex( )

return the index into the Collection model of the current selection

getItem

Object getItem(<Object> i)

return the specified item in our Collection

Parameters:
i - item key

getList

Collection getList( )

return our Collection model

getSelection

Object getSelection( )

return the currently selected Collection item

getSelectionStr

String getSelectionStr( )

return the currently selected Collection item formatted as string

konstructor

void konstructor( <Object> collModel, <String> optName )

Parameters:
collModel - Collection data model we select from
optName - optional name of this instance

reselect

void reselect( )

re-select the current value and publish

select

void select(<Object> k)

select the specified Collection item and publish

Parameters:
k - key of item to select

unselect

void unselect( )

select the zero-th item (NOT "nothing selected") and publish

update

void update( )

handle Collection model update event by "unselect"ing