ix.util.context
Class ContextLink<T>

java.lang.Object
  ix.util.context.ContextLink<T>

public final class ContextLink<T>
extends java.lang.Object

An element in a chain of associations between contexts and values.

A chain of ContextLinks is used to map contexts to values (Objects). The public constructors create a 1-link chain. This normally specifies a default, initial, or top-level value (typically one associated with the root context). Further links are normally added by calling the Context.setInContext method; this ensures that the resulting chain can be processed correctly by the Context.getInContext method, which requires that entries for newer (higher-numbered) contexts appear before those for older ones.

See Also:

Context.getInContext(ContextLink cl, Context c), Context.setInContext(ContextLink cl, Context c, Object value)

Field Summary

(package private) long	contextNumber
(package private) ContextLink	next
(package private) T	value

Constructor Summary

ContextLink(Context context, T value)
Creates a link that specifies a value for a given context.

ContextLink(Context context, T value, ContextLink<T> next)
Constructs a new link at the head of a chain.

ContextLink(long contextNumber, T value, ContextLink<T> next)
Constructs a new link at the head of a chain.

ContextLink(T value)
Creates a link that specifies a value in the root context.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

contextNumber

long contextNumber

value

T value

next

ContextLink next

Constructor Detail

ContextLink

public ContextLink(T value)

Creates a link that specifies a value in the root context.

ContextLink

public ContextLink(Context context,
                   T value)

Creates a link that specifies a value for a given context.

ContextLink

ContextLink(Context context,
            T value,
            ContextLink<T> next)

Constructs a new link at the head of a chain.

ContextLink

ContextLink(long contextNumber,
            T value,
            ContextLink<T> next)

Constructs a new link at the head of a chain.