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## javax.net.ssl
Class KeyManagerFactorySpi

    java.lang.Object
      javax.net.ssl.KeyManagerFactorySpi

    public abstract class KeyManagerFactorySpi

extends Object

This class defines the Service Provider Interface (SPI) for the `KeyManagerFactory` class.

All the abstract methods in this class must be implemented by each cryptographic service provider who wishes to supply the implementation of a particular key manager factory.

Since:
  1.4
See Also:
  `KeyManagerFactory`, `KeyManager`

Constructor Summary
`KeyManagerFactorySpi()`

Method Summary
`protected abstract KeyManager[]` | `engineGetKeyManagers()` Returns one key manager for each type of key material.
`protected abstract void` | `engineInit(KeyStore ks, char[] password)` Initializes this factory with a source of key material.
`protected abstract void` | `engineInit(ManagerFactoryParameters spec)` Initializes this factory with a source of key material.

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

Constructor Detail

### KeyManagerFactorySpi

    public KeyManagerFactorySpi()

Method Detail

### engineInit

    protected abstract void engineInit(KeyStore ks,
                                       char[] password)
                                throws KeyStoreException,
                                       NoSuchAlgorithmException,
                                       UnrecoverableKeyException

  Initializes this factory with a source of key material.

  Parameters:
    `ks` - the key store or null
    `password` - the password for recovering keys
  Throws:
    `KeyStoreException` - if this operation fails
    `NoSuchAlgorithmException` - if the specified algorithm is not available from the specified provider.
    `UnrecoverableKeyException` - if the key cannot be recovered
  See Also:
    `KeyManagerFactory.init(KeyStore, char[])`

### engineInit

    protected abstract void engineInit(ManagerFactoryParameters spec)
                                throws InvalidAlgorithmParameterException

  Initializes this factory with a source of key material.

  In some cases, initialization parameters other than a keystore and password may be needed by a provider. Users of that particular provider are expected to pass an implementation of the appropriate `ManagerFactoryParameters` as defined by the provider. The provider can then call the specified methods in the ManagerFactoryParameters implementation to obtain the needed information.

  Parameters:
    `spec` - an implementation of a provider-specific parameter specification
  Throws:
    `InvalidAlgorithmParameterException` - if there is problem with the parameters
  See Also:
    `KeyManagerFactory.init(ManagerFactoryParameters spec)`

### engineGetKeyManagers

    protected abstract KeyManager[] engineGetKeyManagers()

  Returns one key manager for each type of key material.

  Returns:
    the key managers
  Throws:
    `IllegalStateException` - if the KeyManagerFactorySpi is not initialized

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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