netx.jnlp.cache
Class UpdatePolicy

java.lang.Object
  |
  +--netx.jnlp.cache.UpdatePolicy

public class UpdatePolicy

extends java.lang.Object

A policy that determines when a resource should be checked for an updated version.

Version:

$Revision: 1.2 $

Author:

Jon A. Maxwell (JAM) - initial author

Field Summary

static UpdatePolicy	ALWAYS
static UpdatePolicy	NEVER
static UpdatePolicy	SESSION

Constructor Summary

UpdatePolicy()
Create a new update policy; this policy always updates the entry unless the shouldUpdate method is overridden.

UpdatePolicy(long timeDiff)
Create an update policy that only checks a file for being updated if it has not been checked for longer than the specified time.

Method Summary

boolean

shouldUpdate(CacheEntry entry) Returns whether the resource should be checked for being up-to-date.

Methods inherited from class java.lang.Object

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

Field Detail

ALWAYS

public static UpdatePolicy ALWAYS

SESSION

public static UpdatePolicy SESSION

NEVER

public static UpdatePolicy NEVER

Constructor Detail

UpdatePolicy

public UpdatePolicy()

Create a new update policy; this policy always updates the entry unless the shouldUpdate method is overridden.

UpdatePolicy

public UpdatePolicy(long timeDiff)

Create an update policy that only checks a file for being updated if it has not been checked for longer than the specified time.

Parameters:

timeDiff - how long in ms until update needed

Method Detail

shouldUpdate

public boolean shouldUpdate(CacheEntry entry)

Returns whether the resource should be checked for being up-to-date.