File	Doc	Category	Size	Date	Package
ChoiceCallback.java	API Doc	Java SE 5 API	5239	Fri Aug 26 14:57:46 BST 2005	javax.security.auth.callback

ChoiceCallback

• java.lang.Object

Fields Summary
private static final long	serialVersionUID
private String	prompt
private String[]	choices
private int	defaultChoice
private boolean	multipleSelectionsAllowed
private int[]	selections

Constructors Summary

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. param prompt the prompt used to describe the list of choices. param choices the list of choices. param 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 the choices array. param multipleSelectionsAllowed boolean specifying whether or not multiple selections can be made from the list of choices. exception IllegalArgumentException if prompt is null, if prompt has a length of 0, if choices is null, if choices has a length of 0, if any element from choices is null, if any element from choices has a length of 0 or if defaultChoice does not fall within the array boundaries of choices. if (prompt == null || prompt.length() == 0 || choices == null || choices.length == 0 || defaultChoice < 0 || defaultChoice >= choices.length) throw new IllegalArgumentException(); for (int i = 0; i < choices.length; i++) { if (choices[i] == null || choices[i].length() == 0) throw new IllegalArgumentException(); } this.prompt = prompt; this.choices = choices; this.defaultChoice = defaultChoice; this.multipleSelectionsAllowed = multipleSelectionsAllowed;

Methods Summary
public boolean	allowMultipleSelections() Get the boolean determining whether multiple selections from the choices list are allowed. return whether multiple selections are allowed. return multipleSelectionsAllowed;
public java.lang.String[]	getChoices() Get the list of choices. return the list of choices. return choices;
public int	getDefaultChoice() Get the defaultChoice. return the defaultChoice, represented as an index into the choices list. return defaultChoice;
public java.lang.String	getPrompt() Get the prompt. return the prompt. return prompt;
public int[]	getSelectedIndexes() Get the selected choices. return the selected choices, represented as indexes into the choices list. see #setSelectedIndexes return selections;
public void	setSelectedIndex(int selection) Set the selected choice. param selection the selection represented as an index into the choices list. see #getSelectedIndexes this.selections = new int[1]; this.selections[0] = selection;
public void	setSelectedIndexes(int[] selections) Set the selected choices. param selections the selections represented as indexes into the choices list. exception UnsupportedOperationException if multiple selections are not allowed, as determined by allowMultipleSelections. see #getSelectedIndexes if (!multipleSelectionsAllowed) throw new UnsupportedOperationException(); this.selections = selections;