public class BZip2DummyCompressor extends Object implements Compressor
构造器和说明 |
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BZip2DummyCompressor() |
限定符和类型 | 方法和说明 |
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int |
compress(byte[] b,
int off,
int len)
Fills specified buffer with compressed data.
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void |
end()
Closes the compressor and discards any unprocessed input.
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void |
finish()
When called, indicates that compression should end
with the current contents of the input buffer.
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boolean |
finished()
Returns true if the end of the compressed
data output stream has been reached.
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long |
getBytesRead()
Return number of uncompressed bytes input so far.
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long |
getBytesWritten()
Return number of compressed bytes output so far.
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boolean |
needsInput()
Returns true if the input data buffer is empty and
#setInput() should be called to provide more input.
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void |
reinit(Configuration conf)
Prepare the compressor to be used in a new stream with settings defined in
the given Configuration
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void |
reset()
Resets compressor so that a new set of input data can be processed.
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void |
setDictionary(byte[] b,
int off,
int len)
Sets preset dictionary for compression.
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void |
setInput(byte[] b,
int off,
int len)
Sets input data for compression.
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public int compress(byte[] b, int off, int len) throws IOException
Compressor
compress
在接口中 Compressor
b
- Buffer for the compressed dataoff
- Start offset of the datalen
- Size of the bufferIOException
public void end()
Compressor
end
在接口中 Compressor
public void finish()
Compressor
finish
在接口中 Compressor
public boolean finished()
Compressor
finished
在接口中 Compressor
true
if the end of the compressed
data output stream has been reached.public long getBytesRead()
Compressor
getBytesRead
在接口中 Compressor
public long getBytesWritten()
Compressor
getBytesWritten
在接口中 Compressor
public boolean needsInput()
Compressor
needsInput
在接口中 Compressor
true
if the input data buffer is empty and
#setInput() should be called in order to provide more input.public void reset()
Compressor
reset
在接口中 Compressor
public void setDictionary(byte[] b, int off, int len)
Compressor
setDictionary
在接口中 Compressor
b
- Dictionary data bytesoff
- Start offsetlen
- Lengthpublic void setInput(byte[] b, int off, int len)
Compressor
true
indicating that more input data is required.setInput
在接口中 Compressor
b
- Input dataoff
- Start offsetlen
- Lengthpublic void reinit(Configuration conf)
Compressor
reinit
在接口中 Compressor
conf
- Configuration from which new setting are fetchedCopyright © 2009 The Apache Software Foundation