RealmChoiceCallback (GNU cryptographic primitives and tools)
Keywords: javax.security.sasl.RealmChoiceCallback,RealmChoiceCallback class

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## javax.security.sasl
Class RealmChoiceCallback

    java.lang.Object
      |
      +--javax.security.auth.callback.ChoiceCallback
            |
            +--javax.security.sasl.RealmChoiceCallback

All Implemented Interfaces:
  Callback, java.io.Serializable

public class RealmChoiceCallback
extends ChoiceCallback

This callback is used by `SaslClient` and `SaslServer` to obtain a realm given a list of realm choices.

See Also:
  Serialized Form

Constructor Summary
`RealmChoiceCallback(java.lang.String prompt, java.lang.String[] choices, int defaultChoice, boolean multiple)` Constructs a `RealmChoiceCallback` with a prompt, a list of choices and a default choice.

Methods inherited from class javax.security.auth.callback.ChoiceCallback
`allowMultipleSelections, getChoices, getDefaultChoice, getPrompt, getSelectedIndexes, setSelectedIndex, setSelectedIndexes`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### RealmChoiceCallback

    public RealmChoiceCallback(java.lang.String prompt,
                               java.lang.String[] choices,
                               int defaultChoice,
                               boolean multiple)

  Constructs a `RealmChoiceCallback` with a prompt, a list of choices and a default choice.

Parameters:
  `prompt` - the non-null prompt to use to request the realm.
  `choices` - the non-null list of realms to choose from.
  `defaultChoice` - the choice to be used as the default when the list of choices is displayed. It is an index into the `choices` array.
  `multiple` - `true` if multiple choices allowed; `false` otherwise.
Throws:
  `java.lang.IllegalArgumentException` - if `prompt` is `null` or empty, if `choices` has a length of `0`, if any element from `choices` is `null` or empty, or if `defaultChoice` does not fall within the array boundary of `choices`.

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