Class ChoiceCallback
- java.lang.Object
-
- javax.security.auth.callback.ChoiceCallback
- All Implemented Interfaces:
-
Serializable
,Callback
- Direct Known Subclasses:
RealmChoiceCallback
public class ChoiceCallback extends Object implements Callback, Serializable
Underlying security services instantiate and pass a ChoiceCallback
to the handle
method of a CallbackHandler
to display a list of choices and to retrieve the selected choice(s).
- Since:
- 1.4
- See Also:
-
CallbackHandler
, Serialized Form
Constructor Summary
Constructor | Description |
---|---|
ChoiceCallback(String prompt,
String[] choices,
int defaultChoice,
boolean multipleSelectionsAllowed) | Construct a |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
boolean | allowMultipleSelections() | Get the boolean determining whether multiple selections from the |
String[] | getChoices() | Get the list of choices. |
int | getDefaultChoice() | Get the defaultChoice. |
String | getPrompt() | Get the prompt. |
int[] | getSelectedIndexes() | Get the selected choices. |
void | setSelectedIndex(int selection) | Set the selected choice. |
void | setSelectedIndexes(int[] selections) | Set the selected choices. |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
ChoiceCallback
public ChoiceCallback(String prompt, String[] choices, int defaultChoice, boolean multipleSelectionsAllowed)
Construct a ChoiceCallback
with a prompt, a list of choices, a default choice, and a boolean specifying whether or not multiple selections from the list of choices are allowed.
- Parameters:
-
prompt
- the prompt used to describe the list of choices. -
choices
- the list of choices. -
defaultChoice
- the choice to be used as the default choice when the list of choices are displayed. This value is represented as an index into thechoices
array. -
multipleSelectionsAllowed
- boolean specifying whether or not multiple selections can be made from the list of choices. - Throws:
-
IllegalArgumentException
- ifprompt
is null, ifprompt
has a length of 0, ifchoices
is null, ifchoices
has a length of 0, if any element fromchoices
is null, if any element fromchoices
has a length of 0 or ifdefaultChoice
does not fall within the array boundaries ofchoices
.
Method Detail
getPrompt
public String getPrompt()
Get the prompt.
- Returns:
- the prompt.
getChoices
public String[] getChoices()
Get the list of choices.
- Returns:
- the list of choices.
getDefaultChoice
public int getDefaultChoice()
Get the defaultChoice.
- Returns:
- the defaultChoice, represented as an index into the
choices
list.
allowMultipleSelections
public boolean allowMultipleSelections()
Get the boolean determining whether multiple selections from the choices
list are allowed.
- Returns:
- whether multiple selections are allowed.
setSelectedIndex
public void setSelectedIndex(int selection)
Set the selected choice.
- Parameters:
-
selection
- the selection represented as an index into thechoices
list. - See Also:
getSelectedIndexes()
setSelectedIndexes
public void setSelectedIndexes(int[] selections)
Set the selected choices.
- Parameters:
-
selections
- the selections represented as indexes into thechoices
list. - Throws:
-
UnsupportedOperationException
- if multiple selections are not allowed, as determined byallowMultipleSelections
. - See Also:
getSelectedIndexes()
getSelectedIndexes
public int[] getSelectedIndexes()
Get the selected choices.
- Returns:
- the selected choices, represented as indexes into the
choices
list. - See Also:
setSelectedIndexes(int[])