```
public abstract class ServantActivatorHelper
extends Object
```
When the POA has the RETAIN policy it uses servant managers that are ServantActivators.

构造方法
Constructor	描述
`ServantActivatorHelper()`

所有方法静态方法具体的方法
Modifier and Type	方法	描述
`static ServantActivator`	`extract(Any a)`
`static String`	`id()`
`static void`	`insert(Any a, ServantActivator that)`
`static ServantActivator`	`narrow(Object obj)`
`static ServantActivator`	`read(InputStream istream)`
`static TypeCode`	`type()`
`static ServantActivator`	`unchecked_narrow(Object obj)`
`static void`	`write(OutputStream ostream, ServantActivator value)`

public static void insert(Any a,
                          ServantActivator that)

public static ServantActivator extract(Any a)

public static ServantActivator read(InputStream istream)

public static void write(OutputStream ostream,
                         ServantActivator value)

public static ServantActivator narrow(Object obj)

public static ServantActivator unchecked_narrow(Object obj)

Class ServantActivatorHelper