org.abstracthorizon.danube.webdav.java
Class Delegate

java.lang.Object
  org.abstracthorizon.danube.webdav.java.Bean
      org.abstracthorizon.danube.webdav.java.Delegate

Direct Known Subclasses:

StringDelegate

public abstract class Delegate
extends Bean

This class adds several methods to the bean (path) object. Adapter is, then, using these methods to obtain various attributes of the object.

Author:

Daniel Sendula

Field Summary

protected String

objectPath Parent object path - parent portion of the supplied path

Fields inherited from class org.abstracthorizon.danube.webdav.java.Bean

path

Constructor Summary

Delegate(String path)
Constructor

Method Summary

String	getContentType(JavaWebDAVResourceAdapter adapter) Returns content type.
InputStream	getInputStream(JavaWebDAVResourceAdapter adapter) Returns input stream of the object/field's value.
InputStream	getInputStream(JavaWebDAVResourceAdapter adapter, long from, long length) Returns input stream of a given range of the object/field's value.
OutputStream	getOutputStream(JavaWebDAVResourceAdapter adapter) Returns output stream of the object/field's value.
OutputStream	getOutputStream(JavaWebDAVResourceAdapter adapter, long from, long length) Returns output stream of the object/field's value.
String	getResourceETag(JavaWebDAVResourceAdapter adapter) Returns etag of the object.
abstract int	resourceLength(JavaWebDAVResourceAdapter adapter) Returns resource length

Methods inherited from class org.abstracthorizon.danube.webdav.java.Bean

equals, getPath, hashCode

Methods inherited from class java.lang.Object

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

Field Detail

objectPath

protected String objectPath

Parent object path - parent portion of the supplied path

Constructor Detail

Delegate

public Delegate(String path)

Constructor

Parameters:

path - path to the object

Method Detail

resourceLength

public abstract int resourceLength(JavaWebDAVResourceAdapter adapter)

Returns resource length

Parameters:

adapter - adapter it is called from

Returns:

resource length or -1 if unknown.

getResourceETag

public String getResourceETag(JavaWebDAVResourceAdapter adapter)

Returns etag of the object. If not overriden then parent's object identity hash + class name is returned as a weak etag (see RFC-2616)

Parameters:

adapter - adapter

Returns:

an etag

getInputStream

public InputStream getInputStream(JavaWebDAVResourceAdapter adapter)

Returns input stream of the object/field's value. This implementation returns null

Parameters:

adapter - adapter

Returns:

input stream or null

getInputStream

public InputStream getInputStream(JavaWebDAVResourceAdapter adapter,
                                  long from,
                                  long length)

Returns input stream of a given range of the object/field's value. This implementation returns null

Parameters:

adapter - adapter

from - offset

length - length

Returns:

input stream or null

getOutputStream

public OutputStream getOutputStream(JavaWebDAVResourceAdapter adapter)

Returns output stream of the object/field's value. It is used to write into the object/field. This implementation returns null

Parameters:

adapter - adapter

Returns:

output stream or null

getOutputStream

public OutputStream getOutputStream(JavaWebDAVResourceAdapter adapter,
                                    long from,
                                    long length)

Returns output stream of the object/field's value. It is used to write into the object/field. This implementation returns null

Parameters:

adapter - adapter

from - offset

length - length

Returns:

output stream or null

getContentType

public String getContentType(JavaWebDAVResourceAdapter adapter)

Returns content type. This implementation returns "unknown/unknown".

Parameters:

adapter - adapter

Returns:

content type