org.apache.avalon.excalibur.monitor
Interface Monitor

All Superinterfaces:

org.apache.avalon.framework.component.Component

All Known Implementing Classes:

AbstractMonitor, ActiveMonitor, ActiveMonitor, PassiveMonitor, PassiveMonitor

public interface Monitor
extends org.apache.avalon.framework.component.Component

The Monitor is used to actively check a set of resources to see if they have changed.

Version:

$Id: Monitor.java,v 1.4 2004/02/28 11:47:32 cziegeler Exp $

Author:

Avalon Development Team

Field Summary

static java.lang.String

ROLE

Method Summary

void	addResource(Resource resource) Add a resource to monitor.
Resource	getResource(java.lang.String key) Find a monitored resource.
void	removeResource(Resource resource) Remove a monitored resource by reference.
void	removeResource(java.lang.String key) Remove a monitored resource by key.

Field Detail

ROLE

static final java.lang.String ROLE

Method Detail

addResource

void addResource(Resource resource)

Add a resource to monitor. The resource key referenced in the other interfaces is derived from the resource object.

getResource

Resource getResource(java.lang.String key)

Find a monitored resource. If no resource is available, return null

removeResource

void removeResource(java.lang.String key)

Remove a monitored resource by key.

removeResource

void removeResource(Resource resource)

Remove a monitored resource by reference.