org.hypergraphdb
Interface LazyRef<T>

Type Parameters:

T - The type of the object whose reference is lazyfied.

All Known Implementing Classes:

IncidenceSetRef, ReadyRef

public interface LazyRef<T>

Encapsulate the reference of an object for loading on demand. There is no standard way in Java to implement lazy evaluation of method parameters. This interface serves that purpose in a simple, straightforward way.

Concrete implementation may chose to cache the value or recompute it every time. A caller should not generally rely on the value being cached, even though in general that is the intent...hence the name LazyRef.

Author:

Borislav Iordanov

Method Summary

T	deref() Return the actual value that this reference encapsulate.

Method Detail

deref

T deref()

Return the actual value that this reference encapsulate. Concrete implementation may perform a length operation in order to get to the value.