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## 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
`protected` | `X509ExtendedKeyManager()` Constructor used by subclasses only.

Method Summary
`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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