org.mozilla.javascript.commonjs.module.provider
Class DefaultUrlConnectionExpiryCalculator

java.lang.Object
  org.mozilla.javascript.commonjs.module.provider.DefaultUrlConnectionExpiryCalculator

All Implemented Interfaces:

java.io.Serializable, UrlConnectionExpiryCalculator

public class DefaultUrlConnectionExpiryCalculator
extends java.lang.Object
implements UrlConnectionExpiryCalculator, java.io.Serializable

The default heuristic for calculating cache expiry of URL-based resources. It is simply configured with a default relative expiry, and each invocation of calculateExpiry(URLConnection) returns System.currentTimeMillis() incremented with the relative expiry.

Version:

$Id: DefaultUrlConnectionExpiryCalculator.java,v 1.3 2011/04/07 20:26:12 hannes%helma.at Exp $

Author:

Attila Szegedi

See Also:

Serialized Form

Constructor Summary

DefaultUrlConnectionExpiryCalculator()
Creates a new default expiry calculator with one minute relative expiry.

DefaultUrlConnectionExpiryCalculator(long relativeExpiry)
Creates a new default expiry calculator with the specified relative expiry.

Method Summary

long	calculateExpiry(java.net.URLConnection urlConnection) Given a URL connection, returns a calculated heuristic expiry time (in terms of milliseconds since epoch) for the resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultUrlConnectionExpiryCalculator

public DefaultUrlConnectionExpiryCalculator()

Creates a new default expiry calculator with one minute relative expiry.

DefaultUrlConnectionExpiryCalculator

public DefaultUrlConnectionExpiryCalculator(long relativeExpiry)

Creates a new default expiry calculator with the specified relative expiry.

Parameters:

relativeExpiry - the fixed relative expiry, in milliseconds.

Method Detail

calculateExpiry

public long calculateExpiry(java.net.URLConnection urlConnection)

Description copied from interface: UrlConnectionExpiryCalculator

Given a URL connection, returns a calculated heuristic expiry time (in terms of milliseconds since epoch) for the resource.

Specified by:

calculateExpiry in interface UrlConnectionExpiryCalculator

Parameters:

urlConnection - the URL connection for the resource

Returns:

the expiry for the resource