Class java.util.zip.InflaterInputStream 
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Class java.util.zip.InflaterInputStream 

Object
   |
   +----InputStream
           |
           +----FilterInputStream
                   |
                   +----java.util.zip.InflaterInputStream
public class InflaterInputStream
extends FilterInputStream
This class implements a stream filter for uncompressing data in the "deflate" compression format. It is also used as the basis for other decompression filters, such as GZIPInputStream.

Version:
1.16, 03/19/98
Author:
David Connelly
See Also:
Inflater

Variable Index

o buf
Input buffer for decompression.
o inf
Decompressor for this stream.
o len
Length of input buffer.

Constructor Index

o java.util.zip.InflaterInputStream(InputStream, Inflater, int)
Creates a new input stream with the specified decompressor and buffer size.
o java.util.zip.InflaterInputStream(InputStream, Inflater)
Creates a new input stream with the specified decompressor and a default buffer size.
o java.util.zip.InflaterInputStream(InputStream)
Creates a new input stream with a default decompressor and buffer size.

Method Index

o fill()
Fills input buffer with more data to decompress.
o read()
Reads a byte of uncompressed data.
o read(byte[], int, int)
Reads uncompressed data into an array of bytes.
o skip(long)
Skips specified number of bytes of uncompressed data.

Variables

o buf 
protected byte[] buf
Input buffer for decompression.

o inf 
protected java.util.zip.Inflater inf
Decompressor for this stream.

o len 
protected int len
Length of input buffer.

Constructors

o InflaterInputStream 
public InflaterInputStream(InputStream in,
                           Inflater inf,
                           int size)
Creates a new input stream with the specified decompressor and buffer size.

Parameters:
in - the input stream
inf - the decompressor ("inflater")
size - the input buffer size
o InflaterInputStream 
public InflaterInputStream(InputStream in,
                           Inflater inf)
Creates a new input stream with the specified decompressor and a default buffer size.

Parameters:
in - the input stream
inf - the decompressor ("inflater")
o InflaterInputStream 
public InflaterInputStream(InputStream in)
Creates a new input stream with a default decompressor and buffer size.

Methods

o fill 
protected void fill() throws IOException
Fills input buffer with more data to decompress.

Throws: IOException
if an I/O error has occurred
o read 
public int read() throws IOException
Reads a byte of uncompressed data. This method will block until enough input is available for decompression.

Returns:
the byte read, or -1 if end of compressed input is reached
Throws: IOException
if an I/O error has occurred
Overrides:
read in class FilterInputStream
o read 
public int read(byte b,
                int off,
                int len) throws IOException
Reads uncompressed data into an array of bytes. This method will block until some input can be decompressed.

Parameters:
b - the buffer into which the data is read
off - the start offset of the data
len - the maximum number of bytes read
Returns:
the actual number of bytes read, or -1 if the end of the compressed input is reached or a preset dictionary is needed
Throws: ZipException
if a ZIP format error has occurred
Throws: IOException
if an I/O error has occurred
Overrides:
read in class FilterInputStream
o skip 
public long skip(long n) throws IOException
Skips specified number of bytes of uncompressed data.

Parameters:
n - the number of bytes to skip
Returns:
the actual number of bytes skipped.
Throws: IOException
if an I/O error has occurred
Overrides:
skip in class FilterInputStream 
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