Java Doc for CachingInputStreamSource.java in  » Web-Framework » RSF » uk » org » ponder » springutil » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » RSF » uk.org.ponder.springutil 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   uk.org.ponder.springutil.CachingInputStreamSource

CachingInputStreamSource
public class CachingInputStreamSource implements StreamResolver(Code)
A "caching" source of InputStreams that will only poll the filesystem for changes after a specified lag. Currently any non-filesystem resources are assumed to be ALWAYS STALE, that is, they will always have their streams returned rather than the marker.
author:
   Antranig Basman (antranig@caret.cam.ac.uk)


Field Summary
final public static  intALWAYS_STALE
    
final public static  longNEVER_STALE_MODTIME
    
final public static  InputStreamUP_TO_DATE
     If the stream is considered up to date, either through actually being up to date or through having been polled within the last cacheSeconds, this marker value is returned from getInputStream.

Constructor Summary
public  CachingInputStreamSource(ResourceLoader resourceloader, int cachesecs)
    

Method Summary
public  StreamResolvergetNonCachingResolver()
    
public  voidinit()
    
public  InputStreamopenStream(String fullpath)
    
public  voidsetCacheSeconds(int cachesecs)
     Sets the lag after which the filesystem will be checked again for change of datestamp.

Field Detail
ALWAYS_STALE
final public static int ALWAYS_STALE(Code)



NEVER_STALE_MODTIME
final public static long NEVER_STALE_MODTIME(Code)



UP_TO_DATE
final public static InputStream UP_TO_DATE(Code)
If the stream is considered up to date, either through actually being up to date or through having been polled within the last cacheSeconds, this marker value is returned from getInputStream. Do not attempt to use any methods of this object!




Constructor Detail
CachingInputStreamSource
public CachingInputStreamSource(ResourceLoader resourceloader, int cachesecs)(Code)




Method Detail
getNonCachingResolver
public StreamResolver getNonCachingResolver()(Code)



init
public void init()(Code)



openStream
public InputStream openStream(String fullpath)(Code)



setCacheSeconds
public void setCacheSeconds(int cachesecs)(Code)
Sets the lag after which the filesystem will be checked again for change of datestamp. At a value of ALWAYS_STALE (0) the resource will always be reloaded.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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