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<h2 title="Class RequestStream" class="title">Class RequestStream</h2>
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<li>java.lang.Object</li>
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<pre>public class <span class="strong">RequestStream</span>
extends java.lang.Object</pre>
<div class="block">Class to implement an output stream for the server request.
<p>
Implementation note:
<ol>
<li>This class contains methods to write different types of data to the
server request stream in TDS format.
<li>Character translation of String items is carried out.
</ol></div>
<dl><dt><span class="strong">Version:</span></dt>
<dd>$Id: RequestStream.java,v 1.18 2005-09-21 21:50:34 ddkilzer Exp $</dd>
<dt><span class="strong">Author:</span></dt>
<dd>Mike Hutchinson.</dd></dl>
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<td class="colFirst"><code>private <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket.VirtualSocket</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#_VirtualSocket">_VirtualSocket</a></strong></code>
<div class="block">The unique stream id.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#buffer">buffer</a></strong></code>
<div class="block">The output packet buffer.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#bufferPtr">bufferPtr</a></strong></code>
<div class="block">The offset of the next byte to write.</div>
</td>
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<td class="colFirst"><code>private int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#bufferSize">bufferSize</a></strong></code>
<div class="block">The current output buffer size</div>
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<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#isClosed">isClosed</a></strong></code>
<div class="block">True if stream is closed.</div>
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<td class="colFirst"><code>private int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#maxPrecision">maxPrecision</a></strong></code>
<div class="block">The maximum decimal precision.</div>
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<td class="colFirst"><code>private byte</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#pktType">pktType</a></strong></code>
<div class="block">The request packet type.</div>
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<td class="colFirst"><code>private <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#socket">socket</a></strong></code>
<div class="block">The shared network socket.</div>
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<td class="colOne"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#RequestStream(net.sourceforge.jtds.jdbc.SharedSocket, net.sourceforge.jtds.jdbc.SharedSocket.VirtualSocket, int, int)">RequestStream</a></strong>(<a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket</a> socket,
<a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket.VirtualSocket</a> vsock,
int bufferSize,
int maxPrecision)</code>
<div class="block">Construct a RequestStream object.</div>
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<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#close()">close</a></strong>()</code>
<div class="block">Close the output stream.</div>
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<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#flush()">flush</a></strong>()</code>
<div class="block">Flush the packet to the output stream setting the last packet flag.</div>
</td>
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<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#getBufferSize()">getBufferSize</a></strong>()</code>
<div class="block">Retrieve the current output packet size.</div>
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<td class="colFirst"><code>(package private) byte</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#getMaxDecimalBytes()">getMaxDecimalBytes</a></strong>()</code>
<div class="block">Returns the maximum number of bytes required to output a decimal
given the current <a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#maxPrecision"><code>maxPrecision</code></a>.</div>
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<tr class="altColor">
<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#getMaxPrecision()">getMaxPrecision</a></strong>()</code>
<div class="block">Retrive the maximum decimal precision.</div>
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<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#getServerType()">getServerType</a></strong>()</code>
<div class="block">Retrieve the Server type.</div>
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<td class="colFirst"><code>(package private) int</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#getTdsVersion()">getTdsVersion</a></strong>()</code>
<div class="block">Retrieve the TDS version number.</div>
</td>
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<td class="colFirst"><code>(package private) <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket.VirtualSocket</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#getVirtualSocket()">getVirtualSocket</a></strong>()</code>
<div class="block">Retrieve the <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc"><code>SharedSocket.VirtualSocket</code></a> used by this stream.</div>
</td>
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<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#putPacket(int)">putPacket</a></strong>(int last)</code>
<div class="block">Write the TDS packet to the network.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#setBufferSize(int)">setBufferSize</a></strong>(int size)</code>
<div class="block">Set the output buffer size</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#setPacketType(byte)">setPacketType</a></strong>(byte pktType)</code>
<div class="block">Set the current output packet type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(java.math.BigDecimal)">write</a></strong>(java.math.BigDecimal value)</code>
<div class="block">Write a BigDecimal value to the output stream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(byte)">write</a></strong>(byte b)</code>
<div class="block">Write a byte to the output stream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(byte[])">write</a></strong>(byte[] b)</code>
<div class="block">Write an array of bytes to the output stream.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(byte[], int, int)">write</a></strong>(byte[] b,
int off,
int len)</code>
<div class="block">Write a partial byte buffer to the output stream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(char[], int, int)">write</a></strong>(char[] s,
int off,
int len)</code>
<div class="block">Write a char array object to the output stream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(double)">write</a></strong>(double f)</code>
<div class="block">Write a double value to the output stream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(float)">write</a></strong>(float f)</code>
<div class="block">Write a float value to the output stream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(int)">write</a></strong>(int i)</code>
<div class="block">Write an int value to the output stream.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(long)">write</a></strong>(long l)</code>
<div class="block">Write a long value to the output stream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(short)">write</a></strong>(short s)</code>
<div class="block">Write a short value to the output stream.</div>
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</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#write(java.lang.String)">write</a></strong>(java.lang.String s)</code>
<div class="block">Write a String object to the output stream.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#writeAscii(java.lang.String)">writeAscii</a></strong>(java.lang.String s)</code>
<div class="block">Write a String to the output stream as translated bytes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#writeReaderBytes(java.io.Reader, int)">writeReaderBytes</a></strong>(java.io.Reader in,
int length)</code>
<div class="block">Copy the contents of a Reader stream to the server as bytes.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#writeReaderChars(java.io.Reader, int)">writeReaderChars</a></strong>(java.io.Reader in,
int length)</code>
<div class="block">Copy the contents of a Reader stream to the server.</div>
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</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#writeStreamBytes(java.io.InputStream, int)">writeStreamBytes</a></strong>(java.io.InputStream in,
int length)</code>
<div class="block">Copy the contents of an InputStream to the server.</div>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h3>Field Detail</h3>
<a name="socket">
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<h4>socket</h4>
<pre>private final <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket</a> socket</pre>
<div class="block">The shared network socket.</div>
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<pre>private byte[] buffer</pre>
<div class="block">The output packet buffer.</div>
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<pre>private int bufferPtr</pre>
<div class="block">The offset of the next byte to write.</div>
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<pre>private byte pktType</pre>
<div class="block">The request packet type.</div>
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<pre>private final <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket.VirtualSocket</a> _VirtualSocket</pre>
<div class="block">The unique stream id.</div>
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<pre>private boolean isClosed</pre>
<div class="block">True if stream is closed.</div>
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<pre>private final int bufferSize</pre>
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<pre>private final int maxPrecision</pre>
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<a name="RequestStream(net.sourceforge.jtds.jdbc.SharedSocket, net.sourceforge.jtds.jdbc.SharedSocket.VirtualSocket, int, int)">
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<h4>RequestStream</h4>
<pre>RequestStream(<a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket</a> socket,
<a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket.VirtualSocket</a> vsock,
int bufferSize,
int maxPrecision)</pre>
<div class="block">Construct a RequestStream object.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>socket</code> - the shared socket object to write to</dd><dd><code>vsock</code> - the <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc"><code>SharedSocket.VirtualSocket</code></a> used by this stream</dd><dd><code>bufferSize</code> - the initial buffer size to use (the current network
packet size)</dd><dd><code>maxPrecision</code> - the maximum precision for numeric/decimal types</dd></dl>
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<h4>setBufferSize</h4>
<pre>void setBufferSize(int size)</pre>
<div class="block">Set the output buffer size</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>size</code> - The new buffer size (>= <a href="../../../../net/sourceforge/jtds/jdbc/TdsCore.html#MIN_PKT_SIZE"><code>TdsCore.MIN_PKT_SIZE</code></a> <= <a href="../../../../net/sourceforge/jtds/jdbc/TdsCore.html#MAX_PKT_SIZE"><code>TdsCore.MAX_PKT_SIZE</code></a>).</dd></dl>
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<pre>int getBufferSize()</pre>
<div class="block">Retrieve the current output packet size.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the packet size as an <code>int</code>.</dd></dl>
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<pre>int getMaxPrecision()</pre>
<div class="block">Retrive the maximum decimal precision.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The precision as an <code>int</code>.</dd></dl>
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<pre>byte getMaxDecimalBytes()</pre>
<div class="block">Returns the maximum number of bytes required to output a decimal
given the current <a href="../../../../net/sourceforge/jtds/jdbc/RequestStream.html#maxPrecision"><code>maxPrecision</code></a>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the maximum number of bytes required to output a decimal.</dd></dl>
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<pre><a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc">SharedSocket.VirtualSocket</a> getVirtualSocket()</pre>
<div class="block">Retrieve the <a href="../../../../net/sourceforge/jtds/jdbc/SharedSocket.VirtualSocket.html" title="class in net.sourceforge.jtds.jdbc"><code>SharedSocket.VirtualSocket</code></a> used by this stream.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the unique stream id as an <code>int</code>.</dd></dl>
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<a name="setPacketType(byte)">
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<pre>void setPacketType(byte pktType)</pre>
<div class="block">Set the current output packet type.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>pktType</code> - The packet type eg TdsCore.QUERY_PKT.</dd></dl>
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<pre>void write(byte b)
throws java.io.IOException</pre>
<div class="block">Write a byte to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - The byte value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(byte[] b)
throws java.io.IOException</pre>
<div class="block">Write an array of bytes to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - The byte array to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(byte[] b,
int off,
int len)
throws java.io.IOException</pre>
<div class="block">Write a partial byte buffer to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - The byte array buffer.</dd><dd><code>off</code> - The offset into the byte array.</dd><dd><code>len</code> - The number of bytes to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(int i)
throws java.io.IOException</pre>
<div class="block">Write an int value to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>i</code> - The int value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(short s)
throws java.io.IOException</pre>
<div class="block">Write a short value to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>s</code> - The short value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(long l)
throws java.io.IOException</pre>
<div class="block">Write a long value to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>l</code> - The long value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(double f)
throws java.io.IOException</pre>
<div class="block">Write a double value to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - The double value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(float f)
throws java.io.IOException</pre>
<div class="block">Write a float value to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - The float value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(java.lang.String s)
throws java.io.IOException</pre>
<div class="block">Write a String object to the output stream.
If the TDS version is >= 7.0 write a UNICODE string otherwise
wrote a translated byte stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>s</code> - The String to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(char[] s,
int off,
int len)
throws java.io.IOException</pre>
<div class="block">Write a char array object to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>s</code> - The char[] to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void writeAscii(java.lang.String s)
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<div class="block">Write a String to the output stream as translated bytes.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>s</code> - The String to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void writeStreamBytes(java.io.InputStream in,
int length)
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<div class="block">Copy the contents of an InputStream to the server.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>in</code> - The InputStream to read.</dd><dd><code>length</code> - The length of the stream.</dd>
<dt><span class="strong">Throws:</span></dt>
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<pre>void writeReaderChars(java.io.Reader in,
int length)
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<div class="block">Copy the contents of a Reader stream to the server.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>in</code> - The Reader object with the data.</dd><dd><code>length</code> - The length of the data in characters.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void writeReaderBytes(java.io.Reader in,
int length)
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<div class="block">Copy the contents of a Reader stream to the server as bytes.
<p>
NB. Only reliable where the charset is single byte.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>in</code> - The Reader object with the data.</dd><dd><code>length</code> - The length of the data in bytes.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<pre>void write(java.math.BigDecimal value)
throws java.io.IOException</pre>
<div class="block">Write a BigDecimal value to the output stream.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The BigDecimal value to write.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<h4>flush</h4>
<pre>void flush()
throws java.io.IOException</pre>
<div class="block">Flush the packet to the output stream setting the last packet flag.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<h4>close</h4>
<pre>void close()</pre>
<div class="block">Close the output stream.</div>
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<pre>int getTdsVersion()</pre>
<div class="block">Retrieve the TDS version number.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The TDS version as an <code>int</code>.</dd></dl>
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<pre>int getServerType()</pre>
<div class="block">Retrieve the Server type.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The Server type as an <code>int</code>.</dd></dl>
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<pre>private void putPacket(int last)
throws java.io.IOException</pre>
<div class="block">Write the TDS packet to the network.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>last</code> - Set to 1 if this is the last packet else 0.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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