compact1, compact2, compact3
javax.net.ssl

## Class X509ExtendedKeyManager

- java.lang.Object
- - javax.net.ssl.X509ExtendedKeyManager

- All Implemented Interfaces:
    KeyManager, X509KeyManager

      public abstract class X509ExtendedKeyManager
      extends Object
      implements X509KeyManager

  Abstract class that provides for extension of the X509KeyManager interface.

  Methods in this class should be overriden to provide actual implementations.

  Since:
    1.5

- - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `X509ExtendedKeyManager()` Constructor used by subclasses only.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `chooseEngineClientAlias(String[] keyType, Principal[] issuers, SSLEngine engine)` Choose an alias to authenticate the client side of an `SSLEngine` connection given the public key type and the list of certificate issuer authorities recognized by the peer (if any).
    `String` | `chooseEngineServerAlias(String keyType, Principal[] issuers, SSLEngine engine)` Choose an alias to authenticate the server side of an `SSLEngine` connection given the public key type and the list of certificate issuer authorities recognized by the peer (if any).

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface javax.net.ssl.X509KeyManager

      `chooseClientAlias, chooseServerAlias, getCertificateChain, getClientAliases, getPrivateKey, getServerAliases`

- - ### Constructor Detail

    - #### X509ExtendedKeyManager

          protected X509ExtendedKeyManager()

      Constructor used by subclasses only.

  - ### Method Detail

    - #### chooseEngineClientAlias

          public String chooseEngineClientAlias(String[] keyType,
                                                Principal[] issuers,
                                                SSLEngine engine)

      Choose an alias to authenticate the client side of an `SSLEngine` connection given the public key type and the list of certificate issuer authorities recognized by the peer (if any).

      The default implementation returns null.

      Parameters:
        `keyType` - the key algorithm type name(s), ordered with the most-preferred key type first.
        `issuers` - the list of acceptable CA issuer subject names or null if it does not matter which issuers are used.
        `engine` - the `SSLEngine` to be used for this connection. This parameter can be null, which indicates that implementations of this interface are free to select an alias applicable to any engine.
      Returns:
        the alias name for the desired key, or null if there are no matches.

    - #### chooseEngineServerAlias

          public String chooseEngineServerAlias(String keyType,
                                                Principal[] issuers,
                                                SSLEngine engine)

      Choose an alias to authenticate the server side of an `SSLEngine` connection given the public key type and the list of certificate issuer authorities recognized by the peer (if any).

      The default implementation returns null.

      Parameters:
        `keyType` - the key algorithm type name.
        `issuers` - the list of acceptable CA issuer subject names or null if it does not matter which issuers are used.
        `engine` - the `SSLEngine` to be used for this connection. This parameter can be null, which indicates that implementations of this interface are free to select an alias applicable to any engine.
      Returns:
        the alias name for the desired key, or null if there are no matches.

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