deflater.html

API資料大全

setInput</H3>
<PRE>
public void <B>setInput</B>(byte[]&nbsp;b)</PRE>
<DL>
<DD>Sets input data for compression. This should be called whenever
 needsInput() returns true indicating that more input data is required.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the input data bytes<DT><B>See Also: </B><DD><A HREF="../../../java/util/zip/Deflater.html#needsInput()"><CODE>needsInput()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setDictionary(byte[], int, int)"><!-- --></A><H3>
setDictionary</H3>
<PRE>
public void <B>setDictionary</B>(byte[]&nbsp;b,
                          int&nbsp;off,
                          int&nbsp;len)</PRE>
<DL>
<DD>Sets preset dictionary for compression. A preset dictionary is used
 when the history buffer can be predetermined. When the data is later
 uncompressed with Inflater.inflate(), Inflater.getAdler() can be called
 in order to get the Adler-32 value of the dictionary required for
 decompression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the dictionary data bytes<DD><CODE>off</CODE> - the start offset of the data<DD><CODE>len</CODE> - the length of the data<DT><B>See Also: </B><DD><A HREF="../../../java/util/zip/Inflater.html#inflate(byte[], int, int)"><CODE>Inflater.inflate(byte[], int, int)</CODE></A>, 
<A HREF="../../../java/util/zip/Inflater.html#getAdler()"><CODE>Inflater.getAdler()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setDictionary(byte[])"><!-- --></A><H3>
setDictionary</H3>
<PRE>
public void <B>setDictionary</B>(byte[]&nbsp;b)</PRE>
<DL>
<DD>Sets preset dictionary for compression. A preset dictionary is used
 when the history buffer can be predetermined. When the data is later
 uncompressed with Inflater.inflate(), Inflater.getAdler() can be called
 in order to get the Adler-32 value of the dictionary required for
 decompression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the dictionary data bytes<DT><B>See Also: </B><DD><A HREF="../../../java/util/zip/Inflater.html#inflate(byte[], int, int)"><CODE>Inflater.inflate(byte[], int, int)</CODE></A>, 
<A HREF="../../../java/util/zip/Inflater.html#getAdler()"><CODE>Inflater.getAdler()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setStrategy(int)"><!-- --></A><H3>
setStrategy</H3>
<PRE>
public void <B>setStrategy</B>(int&nbsp;strategy)</PRE>
<DL>
<DD>Sets the compression strategy to the specified value.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>strategy</CODE> - the new compression strategy<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if the compression strategy is
				           invalid</DL>
</DD>
</DL>
<HR>

<A NAME="setLevel(int)"><!-- --></A><H3>
setLevel</H3>
<PRE>
public void <B>setLevel</B>(int&nbsp;level)</PRE>
<DL>
<DD>Sets the current compression level to the specified value.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>level</CODE> - the new compression level (0-9)<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if the compression level is invalid</DL>
</DD>
</DL>
<HR>

<A NAME="needsInput()"><!-- --></A><H3>
needsInput</H3>
<PRE>
public boolean <B>needsInput</B>()</PRE>
<DL>
<DD>Returns true if the input data buffer is empty and setInput()
 should be called in order to provide more input.<DD><DL>
<DT><B>Returns:</B><DD>true if the input data buffer is empty and setInput()
 should be called in order to provide more input</DL>
</DD>
</DL>
<HR>

<A NAME="finish()"><!-- --></A><H3>
finish</H3>
<PRE>
public void <B>finish</B>()</PRE>
<DL>
<DD>When called, indicates that compression should end with the current
 contents of the input buffer.</DL>
<HR>

<A NAME="finished()"><!-- --></A><H3>
finished</H3>
<PRE>
public boolean <B>finished</B>()</PRE>
<DL>
<DD>Returns true if the end of the compressed data output stream has
 been reached.<DD><DL>
<DT><B>Returns:</B><DD>true if the end of the compressed data output stream has
 been reached</DL>
</DD>
</DL>
<HR>

<A NAME="deflate(byte[], int, int)"><!-- --></A><H3>
deflate</H3>
<PRE>
public int <B>deflate</B>(byte[]&nbsp;b,
                   int&nbsp;off,
                   int&nbsp;len)</PRE>
<DL>
<DD>Fills specified buffer with compressed data. Returns actual number
 of bytes of compressed data. A return value of 0 indicates that
 needsInput() should be called in order to determine if more input
 data is required.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the buffer for the compressed data<DD><CODE>off</CODE> - the start offset of the data<DD><CODE>len</CODE> - the maximum number of bytes of compressed data<DT><B>Returns:</B><DD>the actual number of bytes of compressed data</DL>
</DD>
</DL>
<HR>

<A NAME="deflate(byte[])"><!-- --></A><H3>
deflate</H3>
<PRE>
public int <B>deflate</B>(byte[]&nbsp;b)</PRE>
<DL>
<DD>Fills specified buffer with compressed data. Returns actual number
 of bytes of compressed data. A return value of 0 indicates that
 needsInput() should be called in order to determine if more input
 data is required.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the buffer for the compressed data<DT><B>Returns:</B><DD>the actual number of bytes of compressed data</DL>
</DD>
</DL>
<HR>

<A NAME="getAdler()"><!-- --></A><H3>
getAdler</H3>
<PRE>
public int <B>getAdler</B>()</PRE>
<DL>
<DD>Returns the ADLER-32 value of the uncompressed data.<DD><DL>
<DT><B>Returns:</B><DD>the ADLER-32 value of the uncompressed data</DL>
</DD>
</DL>
<HR>

<A NAME="getTotalIn()"><!-- --></A><H3>
getTotalIn</H3>
<PRE>
public int <B>getTotalIn</B>()</PRE>
<DL>
<DD>Returns the total number of bytes input so far.<DD><DL>
<DT><B>Returns:</B><DD>the total number of bytes input so far</DL>
</DD>
</DL>
<HR>

<A NAME="getTotalOut()"><!-- --></A><H3>
getTotalOut</H3>
<PRE>
public int <B>getTotalOut</B>()</PRE>
<DL>
<DD>Returns the total number of bytes output so far.<DD><DL>
<DT><B>Returns:</B><DD>the total number of bytes output so far</DL>
</DD>
</DL>
<HR>

<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD>Resets deflater so that a new set of input data can be processed.
 Keeps current compression level and strategy settings.</DL>
<HR>

<A NAME="end()"><!-- --></A><H3>
end</H3>
<PRE>
public void <B>end</B>()</PRE>
<DL>
<DD>Closes the compressor and discards any unprocessed input.
 This method should be called when the compressor is no longer
 being used, but will also be called automatically by the
 finalize() method. Once this method is called, the behavior
 of the Deflater object is undefined.</DL>
<HR>

<A NAME="finalize()"><!-- --></A><H3>
finalize</H3>
<PRE>
protected void <B>finalize</B>()</PRE>
<DL>
<DD>Closes the compressor when garbage is collected.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/lang/Object.html#finalize()">finalize</A></CODE> in class <CODE><A HREF="../../../java/lang/Object.html">Object</A></CODE></DL>
</DD>
<DD>Following copied from class: <CODE>java.lang.Object</CODE></DD>
<DD><DL>
<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/Throwable.html">Throwable</A></CODE> - the <code>Exception</code> raised by this method</DL>
</DD>
</DL>
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