org.apache.avalon.excalibur.monitor

Class FileResource

java.lang.Object

org.apache.avalon.excalibur.monitor.Resource

org.apache.avalon.excalibur.monitor.StreamResource

org.apache.avalon.excalibur.monitor.FileResource

All Implemented Interfaces:

Modifiable

public class FileResource
extends StreamResource

Managed File based Resource. This is convenient when you want to dynamically set and get the information from the resource. For instance, the Resource does not need to be actively monitored if all access to the resource goes through this type of Resource. It can notify the change as soon as the Writer or OutputStream has been closed.

Version:

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

Author:

Avalon Development Team

Field Summary

Fields

Modifier and Type	Field and Description
private java.io.File	m_file

Fields inherited from class org.apache.avalon.excalibur.monitor.Resource

m_eventSupport, m_previousModified, MODIFIED

Constructor Summary

Constructors

Constructor and Description
FileResource(java.io.File resource)
FileResource(java.lang.String resource) Instantiate the FileResource

Method Summary

Methods

Modifier and Type	Method and Description
java.io.Reader	getResourceAsReader() Sets the resource value with a Writer
java.io.InputStream	getResourceAsStream() Sets the resource value with an OutputStream
long	lastModified() Determines the last time this resource was modified
java.io.OutputStream	setResourceAsStream() Sets the resource value with an OutputStream
java.io.Writer	setResourceAsWriter() Sets the resource value with a Writer

Methods inherited from class org.apache.avalon.excalibur.monitor.StreamResource

streamClosedEvent

Methods inherited from class org.apache.avalon.excalibur.monitor.Resource

addPropertyChangeListener, addPropertyChangeListener, addPropertyChangeListenersFrom, fireAndSetModifiedTime, getEventSupport, getPreviousModified, getResourceKey, hasListeners, hasListeners, removeAllPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener, setPreviousModified, testModifiedAfter, toString

Methods inherited from class java.lang.Object

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

Field Detail

m_file

private final java.io.File m_file

Constructor Detail

FileResource

public FileResource(java.lang.String resource)
             throws java.lang.Exception

Instantiate the FileResource

Throws:

java.lang.Exception

FileResource

public FileResource(java.io.File resource)
             throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

lastModified

public long lastModified()

Determines the last time this resource was modified

Specified by:

lastModified in interface Modifiable

Specified by:

lastModified in class Resource

getResourceAsStream

public java.io.InputStream getResourceAsStream()
                                        throws java.io.IOException

Sets the resource value with an OutputStream

Specified by:

getResourceAsStream in class StreamResource

Throws:

java.io.IOException

getResourceAsReader

public java.io.Reader getResourceAsReader()
                                   throws java.io.IOException

Sets the resource value with a Writer

Specified by:

getResourceAsReader in class StreamResource

Throws:

java.io.IOException

setResourceAsStream

public java.io.OutputStream setResourceAsStream()
                                         throws java.io.IOException

Sets the resource value with an OutputStream

Specified by:

setResourceAsStream in class StreamResource

Throws:

java.io.IOException

setResourceAsWriter

public java.io.Writer setResourceAsWriter()
                                   throws java.io.IOException

Sets the resource value with a Writer

Specified by:

setResourceAsWriter in class StreamResource

Throws:

java.io.IOException