uk.ac.starlink.connect
Interface Leaf

All Superinterfaces:

Node

All Known Implementing Classes:

ErrorLeaf

public interface Leaf
extends Node

Represents a non-directory type file in a (possibly remote) filesystem.

Since:

18 Feb 2005

Method Summary

DataSource	getDataSource() Returns a data source (replayable input stream) containing the data content of this leaf.
java.io.OutputStream	getOutputStream() Returns an output stream from this leaf.

Methods inherited from interface uk.ac.starlink.connect.Node

getName, getParent

Method Detail

getDataSource

DataSource getDataSource()
                         throws java.io.IOException

Returns a data source (replayable input stream) containing the data content of this leaf.

Returns:

data source

Throws:

FileNotFoundException - if the file named by this leaf does not exist

java.io.IOException - if some other error occurs

getOutputStream

java.io.OutputStream getOutputStream()
                                     throws java.io.IOException

Returns an output stream from this leaf. Whether the file named by this leaf already exists or not, the returned stream should effectively write to a new file (deleting an existing one if necessary).

Returns:

output stream writing to the file named by this leaf

Throws:

java.io.IOException - if there's some error