ix.ip2
Class ConditionHandler
java.lang.Object
ix.ip2.ItemHandler
ix.ip2.ActivityHandler
ix.ip2.ConditionHandler
public class ConditionHandler
- extends ActivityHandler
Satisfies conditions
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
ip2
protected Ip2 ip2
modelManager
protected Ip2ModelManager modelManager
ConditionHandler
public ConditionHandler(Ip2 ip2)
appliesTo
public boolean appliesTo(AgendaItem item)
- Description copied from class:
ItemHandler
- Gives this handler a say in whether it should add
actions to an item. If this method returns false for
an AgendaItem, or the item's wantsActionsFrom method
returns false for this handler, this handler will not
be asked to add actions to that item.
- Overrides:
appliesTo
in class ItemHandler
- See Also:
AgendaItem.wantsActionsFrom(ItemHandler handler)
addHandlerActions
public void addHandlerActions(AgendaItem item)
- Description copied from class:
ItemHandler
- Called to add any
HandlerAction
s that this
handler regards as appropriate for the specified AgendaItem.
This method is called only if both this handler's
ItemHandler.appliesTo(AgendaItem)
and the specified item's
AgendaItem.wantsActionsFrom(ItemHandler)
methods
return true.
The method provided by the ItemHandler class just adds
an action that calls this handler's ItemHandler.handle(AgendaItem)
method. This allows suitably simple handlers to avoid
working directly with HandlerActions.
Note that actions are added by calling an item's
AgendaItem.addAction(HandlerAction)
method.
- Overrides:
addHandlerActions
in class ItemHandler
isUsefulFor
protected boolean isUsefulFor(AgendaItem item)
reviseHandlerActions
public void reviseHandlerActions(AgendaItem item,
java.lang.Object reason)
- Description copied from class:
ItemHandler
- Called after something has happened that may require new
HandlerActions to be added to an item. Typically, this
method is called as a consequnce of an ItemHandler --
usually this ItemHandler -- calling the controller's
reconsiderHandler method. In other words, the usual case
is when an ItemHandler causes its own reviseHandlerActions
method to be called; and consequencetly the handler may be
able to agree with itself (so to speak) about what various
"reason" objects mean.
The reviseHandlerActions method is very similar to
the ItemHandler.addHandlerActions(AgendaItem)
method in
terms of its function and the applicability conditions
on when it is called. The main difference is that it
is called to look at AgendaItems that are not having
actions added for the first time and that may already
have an appropriate action, so that no new one needs
to be added.
Note that the usual way for an ItemHandler to get
HandlerActions removed is for it to call the controller's
checkActionValidity method. That results in calls to
HandlerAction.isStillValid()
methods.
- Overrides:
reviseHandlerActions
in class ItemHandler
- See Also:
PanelController.reconsiderHandler(ItemHandler handler,
Object reason)
,
PanelController.checkActionValidity(ItemHandler handler,
Object reason)