uk.ac.ed.epcc.webapp.model.data.stream

Class BlobStreamData

java.lang.Object

uk.ac.ed.epcc.webapp.model.data.stream.BlobStreamData

All Implemented Interfaces:

StreamData

public class BlobStreamData
extends java.lang.Object
implements StreamData

Constructor Summary

Constructors

Constructor and Description
BlobStreamData(AppContext conn, java.sql.Blob b)

Method Summary

Modifier and Type	Method and Description
void	append(java.io.OutputStream out) write contents to an OutputStream without closing.
java.io.InputStream	getInputStream() get an InputStream to read the state of the obect
long	getLength() get the size of data held in the object
java.io.OutputStream	getOutputStream() Get an OutputStream used to modify the state of the object
void	read(java.io.InputStream in) read data from an Input Stream
void	write(java.io.OutputStream out) write contents to an OutputStream and close

Methods inherited from class java.lang.Object

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

Constructor Detail

BlobStreamData

public BlobStreamData(AppContext conn,
                      java.sql.Blob b)

Method Detail

getLength

public long getLength()

Description copied from interface: StreamData

get the size of data held in the object

Specified by:

getLength in interface StreamData

Returns:

long size of current data

getInputStream

public java.io.InputStream getInputStream()

Description copied from interface: StreamData

get an InputStream to read the state of the obect

Specified by:

getInputStream in interface StreamData

Returns:

InputStream

getOutputStream

public java.io.OutputStream getOutputStream()

Description copied from interface: StreamData

Get an OutputStream used to modify the state of the object

Specified by:

getOutputStream in interface StreamData

Returns:

OutPutStream

read

public void read(java.io.InputStream in)
          throws DataFault,
                 java.io.IOException

Description copied from interface: StreamData

read data from an Input Stream

Specified by:

read in interface StreamData

Parameters:

in - InputStream

Throws:

DataFault

java.io.IOException

write

public void write(java.io.OutputStream out)
           throws DataFault,
                  java.io.IOException

Description copied from interface: StreamData

write contents to an OutputStream and close

Specified by:

write in interface StreamData

Parameters:

out - OutputStream

Throws:

DataFault

java.io.IOException

append

public void append(java.io.OutputStream out)
            throws java.io.IOException

Description copied from interface: StreamData

write contents to an OutputStream without closing.

Specified by:

append in interface StreamData

Parameters:

out -

Throws:

java.io.IOException