public abstract class CompressionInputStream extends InputStream implements Seekable
Implementations are assumed to be buffered. This permits clients to
reposition the underlying input stream then call resetState()
,
without having to also synchronize client buffers.
限定符和类型 | 字段和说明 |
---|---|
protected InputStream |
in
The input stream to be compressed.
|
protected long |
maxAvailableData |
限定符 | 构造器和说明 |
---|---|
protected |
CompressionInputStream(InputStream in)
Create a compression input stream that reads
the decompressed bytes from the given stream.
|
限定符和类型 | 方法和说明 |
---|---|
void |
close() |
long |
getPos()
This method returns the current position in the stream.
|
abstract int |
read(byte[] b,
int off,
int len)
Read bytes from the stream.
|
abstract void |
resetState()
Reset the decompressor to its initial state and discard any buffered data,
as the underlying stream may have been repositioned.
|
void |
seek(long pos)
This method is current not supported.
|
boolean |
seekToNewSource(long targetPos)
This method is current not supported.
|
available, mark, markSupported, read, read, reset, skip
protected final InputStream in
protected long maxAvailableData
protected CompressionInputStream(InputStream in) throws IOException
in
- The input stream to be compressed.IOException
public void close() throws IOException
close
在接口中 Closeable
close
在接口中 AutoCloseable
close
在类中 InputStream
IOException
public abstract int read(byte[] b, int off, int len) throws IOException
read
在类中 InputStream
IOException
public abstract void resetState() throws IOException
IOException
public long getPos() throws IOException
getPos
在接口中 Seekable
IOException
public void seek(long pos) throws UnsupportedOperationException
seek
在接口中 Seekable
UnsupportedOperationException
public boolean seekToNewSource(long targetPos) throws UnsupportedOperationException
seekToNewSource
在接口中 Seekable
UnsupportedOperationException
Copyright © 2009 The Apache Software Foundation