limitedinputstream.html

ava 项目中

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<A NAME="LimitedInputStream(java.io.InputStream, long)"><!-- --></A><H3>
LimitedInputStream</H3>
<PRE>
public <B>LimitedInputStream</B>(java.io.InputStream&nbsp;pIn,
                          long&nbsp;pSizeMax)</PRE>
<DL>
<DD>Creates a new instance.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>pIn</CODE> - The input stream, which shall be limited.<DD><CODE>pSizeMax</CODE> - The limit; no more than this number of bytes
   shall be returned by the source stream.</DL>
</DL>

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<A NAME="raiseError(long, long)"><!-- --></A><H3>
raiseError</H3>
<PRE>
protected abstract void <B>raiseError</B>(long&nbsp;pSizeMax,
                                   long&nbsp;pCount)
                            throws java.io.IOException</PRE>
<DL>
<DD>Called to indicate, that the input streams limit has
 been exceeded.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pSizeMax</CODE> - The input streams limit, in bytes.<DD><CODE>pCount</CODE> - The actual number of bytes.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - The called method is expected
   to raise an IOException.</DL>
</DD>
</DL>
<HR>

<A NAME="read()"><!-- --></A><H3>
read</H3>
<PRE>
public int <B>read</B>()
         throws java.io.IOException</PRE>
<DL>
<DD>Reads the next byte of data from this input stream. The value
 byte is returned as an <code>int</code> in the range
 <code>0</code> to <code>255</code>. If no byte is available
 because the end of the stream has been reached, the value
 <code>-1</code> is returned. This method blocks until input data
 is available, the end of the stream is detected, or an exception
 is thrown.
 <p>
 This method
 simply performs <code>in.read()</code> and returns the result.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>read</CODE> in class <CODE>java.io.FilterInputStream</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the next byte of data, or <code>-1</code> if the end of the
             stream is reached.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if an I/O error occurs.<DT><B>See Also:</B><DD><CODE>FilterInputStream.in</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="read(byte[], int, int)"><!-- --></A><H3>
read</H3>
<PRE>
public int <B>read</B>(byte[]&nbsp;b,
                int&nbsp;off,
                int&nbsp;len)
         throws java.io.IOException</PRE>
<DL>
<DD>Reads up to <code>len</code> bytes of data from this input stream
 into an array of bytes. If <code>len</code> is not zero, the method
 blocks until some input is available; otherwise, no
 bytes are read and <code>0</code> is returned.
 <p>
 This method simply performs <code>in.read(b, off, len)</code>
 and returns the result.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>read</CODE> in class <CODE>java.io.FilterInputStream</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - the buffer into which the data is read.<DD><CODE>off</CODE> - The start offset in the destination array
                   <code>b</code>.<DD><CODE>len</CODE> - the maximum number of bytes read.
<DT><B>Returns:</B><DD>the total number of bytes read into the buffer, or
             <code>-1</code> if there is no more data because the end of
             the stream has been reached.
<DT><B>Throws:</B>
<DD><CODE>java.lang.NullPointerException</CODE> - If <code>b</code> is <code>null</code>.
<DD><CODE>java.lang.IndexOutOfBoundsException</CODE> - If <code>off</code> is negative,
 <code>len</code> is negative, or <code>len</code> is greater than
 <code>b.length - off</code>
<DD><CODE>java.io.IOException</CODE> - if an I/O error occurs.<DT><B>See Also:</B><DD><CODE>FilterInputStream.in</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="isClosed()"><!-- --></A><H3>
isClosed</H3>
<PRE>
public boolean <B>isClosed</B>()
                 throws java.io.IOException</PRE>
<DL>
<DD>Returns, whether this stream is already closed.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>True, if the stream is closed, otherwise false.
<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - An I/O error occurred.</DL>
</DD>
</DL>
<HR>

<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <B>close</B>()
           throws java.io.IOException</PRE>
<DL>
<DD>Closes this input stream and releases any system resources
 associated with the stream.
 This
 method simply performs <code>in.close()</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>close</CODE> in interface <CODE>java.io.Closeable</CODE><DT><B>Overrides:</B><DD><CODE>close</CODE> in class <CODE>java.io.FilterInputStream</CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE> - if an I/O error occurs.<DT><B>See Also:</B><DD><CODE>FilterInputStream.in</CODE></DL>
</DD>
</DL>
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