net.anotheria.util.resource

Class Resource

java.lang.Object

net.anotheria.util.resource.Resource

public class Resource
extends Object

Representation of physically existing underlying resource with text content. Underlying resource is identified by name. Depending on ResourceLoader (default is ClassPathResourceLoader) name can be absolute or relative on File System, URL etc. Acts as a proxy to hide all routine for a underlying resource loading and updating.

Constructor Summary

Constructors

Constructor and Description
Resource(String aName) Creates a new Resource for its underlying in class path
Resource(String aName, boolean aWatch) Creates a new Resource for its underlying in class path
Resource(String aName, ResourceLoader aResourceLoader, boolean watch) Creates a new Resource

Method Summary

Methods

Modifier and Type	Method and Description
void	addListener(ResourceListener listener) Adds a listener to this Resource.
protected void	fireUpdateEvent(long timestamp) Called by the WatchDog if a change in the underlying Resource is detected.
String	getContent() Returns the content of this Resource
long	getLastChangeTimestamp() Return the last change timestamp of this Resource in millis
String	getName() Returns the name of this Resource
protected ResourceLoader	getResourceLoader()
protected boolean	isOlderAs(long resourceChangeTimestamp) Returns true if this Resource's change timestamp is older as the given timestamp
void	removeListener(ResourceListener listener) Removes the listener from this Resource
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Resource

public Resource(String aName)

Creates a new Resource for its underlying in class path

Parameters:

aName - name of the Resource

Resource

public Resource(String aName,
        boolean aWatch)

Creates a new Resource for its underlying in class path

Parameters:

aName - name of the Resource

aWatch - must be this Resource up to date with its physical changes

Resource

public Resource(String aName,
        ResourceLoader aResourceLoader,
        boolean watch)

Creates a new Resource

Parameters:

aName - name of the Resource

aWatch - must be this Resource up to date with its physical changes

aResourceLoader - ResourceLoader that is used to load its underlying

Method Detail

addListener

public void addListener(ResourceListener listener)

Adds a listener to this Resource.

Parameters:

listener - a listener to add

removeListener

public void removeListener(ResourceListener listener)

Removes the listener from this Resource

Parameters:

listener -

toString

public String toString()

Overrides:

toString in class Object

getLastChangeTimestamp

public long getLastChangeTimestamp()

Return the last change timestamp of this Resource in millis

Returns:

getName

public String getName()

Returns the name of this Resource

Returns:

getContent

public String getContent()

Returns the content of this Resource

Returns:

isOlderAs

protected boolean isOlderAs(long resourceChangeTimestamp)

Returns true if this Resource's change timestamp is older as the given timestamp

Parameters:

resourceChangeTimestamp -

Returns:

fireUpdateEvent

protected void fireUpdateEvent(long timestamp)

Called by the WatchDog if a change in the underlying Resource is detected.

Parameters:

timestamp -

getResourceLoader

protected ResourceLoader getResourceLoader()