com.imagero.uio.bio.content
Class DummyContent

java.lang.Object
  com.imagero.uio.bio.content.Content
      com.imagero.uio.bio.content.DummyContent

public class DummyContent

extends Content

empty content which just tracks length.

Constructor Summary

DummyContent()

Method Summary

boolean	canReload() Determine if data may be reloaded or not.
void	close() close stream
long	length() Get stream length.
int	load(long offset, int bpos, byte[] buffer) Load stream content to specified buffer
void	save(long offset, int bpos, byte[] buffer, int length) Save buffer content to stream.
boolean	writable()

Methods inherited from class com.imagero.uio.bio.content.Content

finalize, load

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyContent

public DummyContent()

Method Detail

load

public int load(long offset,
                int bpos,
                byte[] buffer)
         throws java.io.IOException

Description copied from class: Content

Load stream content to specified buffer

Specified by:

load in class Content

Parameters:

offset - stream offset

bpos - buffer position

buffer - byte array

Returns:

how much bytes were loaded

Throws:

java.io.IOException

save

public void save(long offset,
                 int bpos,
                 byte[] buffer,
                 int length)
          throws java.io.IOException

Description copied from class: Content

Save buffer content to stream. Not always supported.

Specified by:

save in class Content

Parameters:

offset - stream offset

bpos - buffer position

buffer - byte array

length - how much bytes should be saved

Throws:

java.io.IOException

length

public long length()
            throws java.io.IOException

Description copied from class: Content

Get stream length. Not always known.

Specified by:

length in class Content

Returns:

Throws:

java.io.IOException

close

public void close()

Description copied from class: Content

close stream

Specified by:

close in class Content

canReload

public boolean canReload()

Description copied from class: Content

Determine if data may be reloaded or not. For example: data from InputStream cannot be reloaded, however if content uses file or memory based cache then it is possible to reload data.

Specified by:

canReload in class Content

Returns:

true if data can be reloaded.

writable

public boolean writable()

Specified by:

writable in class Content