Package org.refcodes.component

Interface HandleLookup<H,REF>

Type Parameters:

H - The type of the handles.

REF - The type of the objects to which the handles reference to.

All Known Subinterfaces:

CompositeComponentHandle<H,REF>, HandleDirectory<H,REF>

public interface HandleLookup<H,REF>

Any system in this framework being able to work with handles provides an implementation of the handle lookup interface. This enables a unified access to the system wide handles.

Method Summary

Modifier and Type	Method	Description
boolean	hasHandle(H aHandle)	Used to test if the given handle is known by an implementing system.
REF	lookupHandle(H aHandle)	Gets the object associated to a given handle.
REF	removeHandle(H aHandle)	Gets the descriptor for a given handle.

Method Detail

hasHandle

boolean hasHandle(H aHandle)

Used to test if the given handle is known by an implementing system.

Parameters:

aHandle - The handle for which to find out if there is any related data.

Returns:

True if the handle is known.

lookupHandle

REF lookupHandle(H aHandle)
          throws UnknownHandleRuntimeException

Gets the object associated to a given handle.

Parameters:

aHandle - The handle for which to get the related data.

Returns:

The object associated to the given handle.

Throws:

UnknownHandleRuntimeException - the unknown handle runtime exception

removeHandle

REF removeHandle(H aHandle)
          throws UnknownHandleRuntimeException

Gets the descriptor for a given handle.

Parameters:

aHandle - The handle for which to get the descriptor.

Returns:

The descriptor for the given handle.

Throws:

UnknownHandleRuntimeException - the unknown handle runtime exception