org.xmlecho.palomar.cache
Class ReaderObjectHolder

java.lang.Object
  org.xmlecho.palomar.cache.Holder
      org.xmlecho.palomar.cache.ObjectHolder
          org.xmlecho.palomar.cache.ReaderObjectHolder

public class ReaderObjectHolder

extends ObjectHolder

holds an object which is presented as a Reader for caching large objects to files on disk.

Field Summary

Fields inherited from class org.xmlecho.palomar.cache.Holder

_cachedAtTime, _cachedObject, _myCache, _next, _objectKey, _objectPolicies, _prev

Constructor Summary

ReaderObjectHolder()

Method Summary

void	clean() remove the cached file, and any reference to it
java.lang.String	getFileUrl()
java.lang.Object	getObject() returns a Reader for a stream which we cached to the fileSystem
void	setFileUrl(java.lang.String fileUrl)
java.lang.Object	setObject(java.lang.Object outputStream) cache an OutputStream to disk.

Methods inherited from class org.xmlecho.palomar.cache.Holder

getCache, getCachedAtTime, getNext, getObjectKey, getPolicies, getPrev, setCache, setCachedAtTime, setNext, setObjectKey, setPolicies, setPrev

Methods inherited from class java.lang.Object

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

Constructor Detail

ReaderObjectHolder

public ReaderObjectHolder()

Method Detail

getFileUrl

public java.lang.String getFileUrl()

setFileUrl

public void setFileUrl(java.lang.String fileUrl)

setObject

public java.lang.Object setObject(java.lang.Object outputStream)

cache an OutputStream to disk. We return an new OutputStream to the client to write to. We split the stream to two places: 1) a file on the disk which we'll read from when the client code gets the object later, and 2) the original OutputStream.

Overrides:

setObject in class Holder

Parameters:

outputStream - object to be cached

Returns:

an OutputStream for the client to write to

getObject

public java.lang.Object getObject()

returns a Reader for a stream which we cached to the fileSystem

Overrides:

getObject in class Holder

Returns:

Object the object that is cached.

clean

public void clean()

remove the cached file, and any reference to it

Overrides:

clean in class ObjectHolder