SingletonFactory (OpenSAML :: Core 4.0.1 API)

Type Parameters:

Input - the factory input class type

Output - the factory output class type

All Known Implementing Classes:

AbstractSimpleSingletonFactory, AbstractSingletonFactory, AbstractWrappedSingletonFactory
```
public interface SingletonFactory<Input,Output>
```
An interface for factory classes which implement a singleton pattern for producing an output class based on an input class.
Classes which implement this interface should ensure that exactly one instance of a given output class is returned from the factory for a given instance of an input class.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Output`	`getInstance(Input input)`	Obtain an instance of the output class based on an input class instance.

- Method Detail
  - getInstance
```
Output getInstance(Input input)
```
    Obtain an instance of the output class based on an input class instance.
    
    Parameters:
    
    input - the input class instance
    
    Returns:
    
    an output class instance