digestoutputstream.html

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<A NAME="digest"><!-- --></A><H3>
digest</H3>
<PRE>
protected <A HREF="../../java/security/MessageDigest.html">MessageDigest</A> <B>digest</B></PRE>
<DL>
<DD>The message digest associated with this stream.</DL>

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<A NAME="DigestOutputStream(java.io.OutputStream, java.security.MessageDigest)"><!-- --></A><H3>
DigestOutputStream</H3>
<PRE>
public <B>DigestOutputStream</B>(<A HREF="../../java/io/OutputStream.html">OutputStream</A>&nbsp;stream,
                          <A HREF="../../java/security/MessageDigest.html">MessageDigest</A>&nbsp;digest)</PRE>
<DL>
<DD>Creates a digest output stream, using the specified output stream
 and message digest.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>stream</CODE> - the output stream.<DD><CODE>digest</CODE> - the message digest to associate with this stream.</DL>
</DD>
</DL>

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<A NAME="getMessageDigest()"><!-- --></A><H3>
getMessageDigest</H3>
<PRE>
public <A HREF="../../java/security/MessageDigest.html">MessageDigest</A> <B>getMessageDigest</B>()</PRE>
<DL>
<DD>Returns the message digest associated with this stream.<DD><DL>
<DT><B>Returns:</B><DD>the message digest associated with this stream.<DT><B>See Also: </B><DD><A HREF="../../java/security/DigestOutputStream.html#setMessageDigest(java.security.MessageDigest)"><CODE>setMessageDigest(java.security.MessageDigest)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setMessageDigest(java.security.MessageDigest)"><!-- --></A><H3>
setMessageDigest</H3>
<PRE>
public void <B>setMessageDigest</B>(<A HREF="../../java/security/MessageDigest.html">MessageDigest</A>&nbsp;digest)</PRE>
<DL>
<DD>Associates the specified message digest with this stream.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>digest</CODE> - the message digest to be associated with this stream.<DT><B>See Also: </B><DD><A HREF="../../java/security/DigestOutputStream.html#getMessageDigest()"><CODE>getMessageDigest()</CODE></A></DL>
</DD>
</DL>
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<A NAME="write(int)"><!-- --></A><H3>
write</H3>
<PRE>
public void <B>write</B>(int&nbsp;b)
           throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Updates the message digest (if the digest function is on) using
 the specified byte, and in any case writes the byte
 to the output stream. That is, if the digest function is on
 (see <A HREF="../../java/security/DigestOutputStream.html#on(boolean)"><CODE>on</CODE></A>), this method calls
 <code>update</code> on the message digest associated with this
 stream, passing it the byte <code>b</code>. This method then
 writes the byte to the output stream, blocking until the byte
 is actually written.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/FilterOutputStream.html#write(int)">write</A></CODE> in class <CODE><A HREF="../../java/io/FilterOutputStream.html">FilterOutputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the byte to be used for updating and writing to the
 output stream.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.<DT><B>See Also: </B><DD><A HREF="../../java/security/MessageDigest.html#update(byte)"><CODE>MessageDigest.update(byte)</CODE></A></DL>
</DD>
</DL>
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<A NAME="write(byte[], int, int)"><!-- --></A><H3>
write</H3>
<PRE>
public void <B>write</B>(byte[]&nbsp;b,
                  int&nbsp;off,
                  int&nbsp;len)
           throws <A HREF="../../java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Updates the message digest (if the digest function is on) using
 the specified subarray, and in any case writes the subarray to
 the output stream. That is, if the digest function is on (see
 <A HREF="../../java/security/DigestOutputStream.html#on(boolean)"><CODE>on</CODE></A>), this method calls <code>update</code>
 on the message digest associated with this stream, passing it
 the subarray specifications. This method then writes the subarray
 bytes to the output stream, blocking until the bytes are actually
 written.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/io/FilterOutputStream.html#write(byte[], int, int)">write</A></CODE> in class <CODE><A HREF="../../java/io/FilterOutputStream.html">FilterOutputStream</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the array containing the subarray to be used for updating
 and writing to the output stream.<DD><CODE>off</CODE> - the offset into <code>b</code> of the first byte to
 be updated and written.<DD><CODE>len</CODE> - the number of bytes of data to be updated and written
 from <code>b</code>, starting at offset <code>off</code>.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if an I/O error occurs.<DT><B>See Also: </B><DD><A HREF="../../java/security/MessageDigest.html#update(byte[], int, int)"><CODE>MessageDigest.update(byte[], int, int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="on(boolean)"><!-- --></A><H3>
on</H3>
<PRE>
public void <B>on</B>(boolean&nbsp;on)</PRE>
<DL>
<DD>Turns the digest function on or off. The default is on.  When
 it is on, a call to one of the <code>write</code> methods results in an
 update on the message digest.  But when it is off, the message
 digest is not updated.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>on</CODE> - true to turn the digest function on, false to turn it
 off.</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="../../java/lang/String.html">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Prints a string representation of this digest output stream and
 its associated message digest object.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../java/lang/Object.html#toString()">toString</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>Returns:</B><DD>a string representation of the object.</DL>
</DD>
</DL>
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