Class RandomAccessStream.InputStreamView

java.lang.Object

java.io.InputStream

com.twelvemonkeys.io.SeekableInputStream

com.twelvemonkeys.io.RandomAccessStream.InputStreamView

All Implemented Interfaces:

Seekable, Closeable, AutoCloseable

Enclosing class:

RandomAccessStream

static final class RandomAccessStream.InputStreamView
extends SeekableInputStream

Version:

$Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/io/RandomAccessStream.java#3 $

Field Summary

Fields

Modifier and Type	Field	Description
private final RandomAccessStream	mStream

Fields inherited from class SeekableInputStream

closed, flushedPosition, markedPositions, position

Constructor Summary

Constructors

Constructor	Description
InputStreamView(RandomAccessStream pStream)

Method Summary

Modifier and Type	Method	Description
protected void	closeImpl()
protected void	flushBeforeImpl(long pPosition)	Discards the initial portion of the stream prior to the indicated postion.
boolean	isCached()	Returns true if this Seekable stream caches data itself in order to allow seeking backwards.
boolean	isCachedFile()	Returns true if this Seekable stream caches data itself in order to allow seeking backwards, and the cache is kept in a temporary file.
boolean	isCachedMemory()	Returns true if this Seekable stream caches data itself in order to allow seeking backwards, and the cache is kept in main memory.
int	read()
int	read(byte[] pBytes, int pOffset, int pLength)
protected void	seekImpl(long pPosition)

Methods inherited from class SeekableInputStream

checkOpen, close, finalize, flush, flushBefore, getFlushedPosition, getStreamPosition, mark, mark, markSupported, read, reset, seek, skip

Methods inherited from class InputStream

available, nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class Object

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

Field Details

mStream

private final RandomAccessStream mStream

Constructor Details

InputStreamView

public InputStreamView(RandomAccessStream pStream)

Method Details

isCached

public boolean isCached()

Description copied from interface: Seekable

Returns true if this Seekable stream caches data itself in order to allow seeking backwards. Applications may consult this in order to decide how frequently, or whether, to flush in order to conserve cache resources.

Returns:

true if this Seekable caches data.

See Also:

• Seekable.isCachedMemory()
• Seekable.isCachedFile()

isCachedFile

public boolean isCachedFile()

Description copied from interface: Seekable

Returns true if this Seekable stream caches data itself in order to allow seeking backwards, and the cache is kept in a temporary file. Applications may consult this in order to decide how frequently, or whether, to flush in order to conserve cache resources.

Returns:

true if this Seekable caches data in a temporary file.

See Also:

• Seekable.isCached()
• Seekable.isCachedMemory()

isCachedMemory

public boolean isCachedMemory()

Description copied from interface: Seekable

Returns true if this Seekable stream caches data itself in order to allow seeking backwards, and the cache is kept in main memory. Applications may consult this in order to decide how frequently, or whether, to flush in order to conserve cache resources.

Returns:

true if this Seekable caches data in main memory.

See Also:

• Seekable.isCached()
• Seekable.isCachedFile()

closeImpl

protected void closeImpl()
                  throws IOException

Specified by:

closeImpl in class SeekableInputStream

Throws:

IOException

flushBeforeImpl

protected void flushBeforeImpl(long pPosition)
                        throws IOException

Description copied from class: SeekableInputStream

Discards the initial portion of the stream prior to the indicated postion.

Specified by:

flushBeforeImpl in class SeekableInputStream

Parameters:

pPosition - the position to flush to

Throws:

IOException - if an I/O exception occurs during the flush operation

See Also:

• SeekableInputStream.flushBefore(long)

seekImpl

protected void seekImpl(long pPosition)
                 throws IOException

Specified by:

seekImpl in class SeekableInputStream

Throws:

IOException

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] pBytes,
 int pOffset,
 int pLength)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException