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Support (jTDS API)
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SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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net.sourceforge.jtds.jdbc</FONT>
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Class Support</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>net.sourceforge.jtds.jdbc.Support</B>
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<DL>
<DT>public class <B>Support</B><DT>extends java.lang.Object</DL>
<P>
This class contains static utility methods designed to support the
main driver classes.
<p>
Implementation notes:
<ol>
<li>The methods in this class incorporate some code from previous versions
of jTDS to handle dates, BLobs etc.
<li>This class contains routines to generate runtime messages from the resource file.
<li>The key data conversion logic used in Statements and result sets is implemented here.
<li>There is nothing here which is TDS specific.
</ol>
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>$Id: Support.java,v 1.56.2.5 2009/10/22 07:28:23 ickzon Exp $</DD>
<DT><B>Author:</B></DT>
<DD>Mike Hutchinson, jTDS project</DD>
</DL>
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<B>Field Summary</B></FONT></TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigDecimal</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#BIG_DECIMAL_ONE">BIG_DECIMAL_ONE</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigDecimal</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#BIG_DECIMAL_ZERO">BIG_DECIMAL_ZERO</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.ThreadLocal</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#calendar">calendar</A></B></CODE>
<BR>
Thread-bound utility Calendar object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.sql.Date</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#DATE_ZERO">DATE_ZERO</A></B></CODE>
<BR>
</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#DOUBLE_ONE">DOUBLE_ONE</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#DOUBLE_ZERO">DOUBLE_ZERO</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Float</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#FLOAT_ONE">FLOAT_ONE</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Float</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#FLOAT_ZERO">FLOAT_ZERO</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static char[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#hex">hex</A></B></CODE>
<BR>
Hex constants to use in conversion routines.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Integer</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#INTEGER_ONE">INTEGER_ONE</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Integer</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#INTEGER_ZERO">INTEGER_ZERO</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#LONG_ONE">LONG_ONE</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.lang.Long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#LONG_ZERO">LONG_ZERO</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigInteger</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#MAX_VALUE_28">MAX_VALUE_28</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigInteger</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#MAX_VALUE_38">MAX_VALUE_38</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigDecimal</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#MAX_VALUE_LONG_BD">MAX_VALUE_LONG_BD</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigInteger</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#MAX_VALUE_LONG_BI">MAX_VALUE_LONG_BI</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigDecimal</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#MIN_VALUE_LONG_BD">MIN_VALUE_LONG_BD</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.math.BigInteger</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#MIN_VALUE_LONG_BI">MIN_VALUE_LONG_BI</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.sql.Time</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#TIME_ZERO">TIME_ZERO</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static java.util.HashMap</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#typeMap">typeMap</A></B></CODE>
<BR>
Convert java clases to java.sql.Type constant.</TD>
</TR>
</TABLE>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<A NAME="constructor_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=2><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private </CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#Support()">Support</A></B>()</CODE>
<BR>
</TD>
</TR>
</TABLE>
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=2><FONT SIZE="+2">
<B>Method Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#calculateNamedPipeBufferSize(int, int)">calculateNamedPipeBufferSize</A></B>(int tdsVersion,
int packetSize)</CODE>
<BR>
Calculate the buffer size to use when buffering the <code>InputStream</code>
for named pipes.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#castNumeric(java.lang.Object, int, int)">castNumeric</A></B>(java.lang.Object orig,
int sourceType,
int targetType)</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#convert(java.lang.Object, java.lang.Object, int, java.lang.String)">convert</A></B>(java.lang.Object callerReference,
java.lang.Object x,
int jdbcType,
java.lang.String charSet)</CODE>
<BR>
Convert an existing data object to the specified JDBC type.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#convertLOB(java.lang.Object)">convertLOB</A></B>(java.lang.Object value)</CODE>
<BR>
Converts a LOB to the equivalent Java type, i.e. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#convertLOBType(int)">convertLOBType</A></B>(int type)</CODE>
<BR>
Converts a LOB type constant to the equivalent Java type constant, i.e.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#embedData(java.lang.StringBuffer, java.lang.Object, boolean, net.sourceforge.jtds.jdbc.ConnectionJDBC2)">embedData</A></B>(java.lang.StringBuffer buf,
java.lang.Object value,
boolean isUnicode,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc">ConnectionJDBC2</A> connection)</CODE>
<BR>
Embed the data object as a string literal in the buffer supplied.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#encodeString(java.lang.String, java.lang.String)">encodeString</A></B>(java.lang.String cs,
java.lang.String value)</CODE>
<BR>
Encode a string into a byte array using the specified character set.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getClassName(int)">getClassName</A></B>(int jdbcType)</CODE>
<BR>
Retrieve the fully qualified java class name for the
supplied JDBC Types constant.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>private static <A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc">ConnectionJDBC2</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getConnection(java.lang.Object)">getConnection</A></B>(java.lang.Object callerReference)</CODE>
<BR>
Returns the connection for a given <code>ResultSet</code>,
<code>Statement</code> or <code>Connection</code> object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getJdbcType(java.lang.Class)">getJdbcType</A></B>(java.lang.Class typeClass)</CODE>
<BR>
Get the JDBC type constant which matches the supplied <code>Class</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getJdbcType(java.lang.Object)">getJdbcType</A></B>(java.lang.Object value)</CODE>
<BR>
Get the JDBC type constant which matches the supplied Object type.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getJdbcTypeName(int)">getJdbcTypeName</A></B>(int jdbcType)</CODE>
<BR>
Get a String describing the supplied JDBC type constant.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getParameterDefinitions(net.sourceforge.jtds.jdbc.ParamInfo[])">getParameterDefinitions</A></B>(<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] parameters)</CODE>
<BR>
Constructs a parameter definition string for use with
sp_executesql, sp_prepare, sp_prepexec, sp_cursoropen,
sp_cursorprepare and sp_cursorprepexec.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#getStatementKey(java.lang.String, net.sourceforge.jtds.jdbc.ParamInfo[], int, java.lang.String, boolean, boolean)">getStatementKey</A></B>(java.lang.String sql,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] params,
int serverType,
java.lang.String catalog,
boolean autoCommit,
boolean cursor)</CODE>
<BR>
Generates a unique statement key for a given SQL statement.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#isWindowsOS()">isWindowsOS</A></B>()</CODE>
<BR>
Checks the <code>os.name</code> system property to see if it starts
with "windows".</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static java.lang.Throwable</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#linkException(java.lang.Exception, java.lang.Throwable)">linkException</A></B>(java.lang.Exception exception,
java.lang.Throwable cause)</CODE>
<BR>
Link the original cause to an <code>Exception</code>.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static java.sql.SQLException</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#linkException(java.sql.SQLException, java.lang.Throwable)">linkException</A></B>(java.sql.SQLException sqle,
java.lang.Throwable cause)</CODE>
<BR>
Link the original cause to an <code>SQLException</code>.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static java.sql.SQLWarning</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#linkException(java.sql.SQLWarning, java.lang.Throwable)">linkException</A></B>(java.sql.SQLWarning sqle,
java.lang.Throwable cause)</CODE>
<BR>
Link the original cause to an <code>SQLWarning</code>.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.math.BigDecimal</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#normalizeBigDecimal(java.math.BigDecimal, int)">normalizeBigDecimal</A></B>(java.math.BigDecimal value,
int maxPrecision)</CODE>
<BR>
Normalize a BigDecimal value so that it fits within the
available precision.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#substituteParameters(java.lang.String, net.sourceforge.jtds.jdbc.ParamInfo[], net.sourceforge.jtds.jdbc.ConnectionJDBC2)">substituteParameters</A></B>(java.lang.String sql,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] list,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc">ConnectionJDBC2</A> connection)</CODE>
<BR>
Substitute actual data for the parameter markers to simulate
parameter substitution in a PreparedStatement.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>(package private) static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#substituteParamMarkers(java.lang.String, net.sourceforge.jtds.jdbc.ParamInfo[])">substituteParamMarkers</A></B>(java.lang.String sql,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] list)</CODE>
<BR>
Update the SQL string and replace the ? </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#timeFromZone(java.util.Date, java.util.Calendar)">timeFromZone</A></B>(java.util.Date value,
java.util.Calendar target)</CODE>
<BR>
Convert a timestamp from a different Timezone.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#timeToZone(java.util.Date, java.util.Calendar)">timeToZone</A></B>(java.util.Date value,
java.util.Calendar target)</CODE>
<BR>
Convert a timestamp to a different Timezone.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#toHex(byte[])">toHex</A></B>(byte[] bytes)</CODE>
<BR>
Convert a byte[] object to a hex string.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
<!-- ============ FIELD DETAIL =========== -->
<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Field Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="INTEGER_ZERO"><!-- --></A><H3>
INTEGER_ZERO</H3>
<PRE>
private static final java.lang.Integer <B>INTEGER_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="INTEGER_ONE"><!-- --></A><H3>
INTEGER_ONE</H3>
<PRE>
private static final java.lang.Integer <B>INTEGER_ONE</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="LONG_ZERO"><!-- --></A><H3>
LONG_ZERO</H3>
<PRE>
private static final java.lang.Long <B>LONG_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="LONG_ONE"><!-- --></A><H3>
LONG_ONE</H3>
<PRE>
private static final java.lang.Long <B>LONG_ONE</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="FLOAT_ZERO"><!-- --></A><H3>
FLOAT_ZERO</H3>
<PRE>
private static final java.lang.Float <B>FLOAT_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="FLOAT_ONE"><!-- --></A><H3>
FLOAT_ONE</H3>
<PRE>
private static final java.lang.Float <B>FLOAT_ONE</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="DOUBLE_ZERO"><!-- --></A><H3>
DOUBLE_ZERO</H3>
<PRE>
private static final java.lang.Double <B>DOUBLE_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="DOUBLE_ONE"><!-- --></A><H3>
DOUBLE_ONE</H3>
<PRE>
private static final java.lang.Double <B>DOUBLE_ONE</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="BIG_DECIMAL_ZERO"><!-- --></A><H3>
BIG_DECIMAL_ZERO</H3>
<PRE>
private static final java.math.BigDecimal <B>BIG_DECIMAL_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="BIG_DECIMAL_ONE"><!-- --></A><H3>
BIG_DECIMAL_ONE</H3>
<PRE>
private static final java.math.BigDecimal <B>BIG_DECIMAL_ONE</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="DATE_ZERO"><!-- --></A><H3>
DATE_ZERO</H3>
<PRE>
private static final java.sql.Date <B>DATE_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="TIME_ZERO"><!-- --></A><H3>
TIME_ZERO</H3>
<PRE>
private static final java.sql.Time <B>TIME_ZERO</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="MIN_VALUE_LONG_BI"><!-- --></A><H3>
MIN_VALUE_LONG_BI</H3>
<PRE>
private static final java.math.BigInteger <B>MIN_VALUE_LONG_BI</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="MAX_VALUE_LONG_BI"><!-- --></A><H3>
MAX_VALUE_LONG_BI</H3>
<PRE>
private static final java.math.BigInteger <B>MAX_VALUE_LONG_BI</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="MIN_VALUE_LONG_BD"><!-- --></A><H3>
MIN_VALUE_LONG_BD</H3>
<PRE>
private static final java.math.BigDecimal <B>MIN_VALUE_LONG_BD</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="MAX_VALUE_LONG_BD"><!-- --></A><H3>
MAX_VALUE_LONG_BD</H3>
<PRE>
private static final java.math.BigDecimal <B>MAX_VALUE_LONG_BD</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="MAX_VALUE_28"><!-- --></A><H3>
MAX_VALUE_28</H3>
<PRE>
private static final java.math.BigInteger <B>MAX_VALUE_28</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="MAX_VALUE_38"><!-- --></A><H3>
MAX_VALUE_38</H3>
<PRE>
private static final java.math.BigInteger <B>MAX_VALUE_38</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="typeMap"><!-- --></A><H3>
typeMap</H3>
<PRE>
private static final java.util.HashMap <B>typeMap</B></PRE>
<DL>
<DD>Convert java clases to java.sql.Type constant.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="hex"><!-- --></A><H3>
hex</H3>
<PRE>
private static final char[] <B>hex</B></PRE>
<DL>
<DD>Hex constants to use in conversion routines.
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="calendar"><!-- --></A><H3>
calendar</H3>
<PRE>
private static final java.lang.ThreadLocal <B>calendar</B></PRE>
<DL>
<DD>Thread-bound utility Calendar object.
<P>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="Support()"><!-- --></A><H3>
Support</H3>
<PRE>
private <B>Support</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="toHex(byte[])"><!-- --></A><H3>
toHex</H3>
<PRE>
public static java.lang.String <B>toHex</B>(byte[] bytes)</PRE>
<DL>
<DD>Convert a byte[] object to a hex string.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bytes</CODE> - The byte array to convert.
<DT><B>Returns:</B><DD>The hex equivalent as a <code>String</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="normalizeBigDecimal(java.math.BigDecimal, int)"><!-- --></A><H3>
normalizeBigDecimal</H3>
<PRE>
static java.math.BigDecimal <B>normalizeBigDecimal</B>(java.math.BigDecimal value,
int maxPrecision)
throws java.sql.SQLException</PRE>
<DL>
<DD>Normalize a BigDecimal value so that it fits within the
available precision.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - The decimal value to normalize.<DD><CODE>maxPrecision</CODE> - The decimal precision supported by the server
(assumed to be a value of either 28 or 38).
<DT><B>Returns:</B><DD>The possibly normalized decimal value as a <code>BigDecimal</code>.
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE> - If the number is too big.</DL>
</DD>
</DL>
<HR>
<A NAME="castNumeric(java.lang.Object, int, int)"><!-- --></A><H3>
castNumeric</H3>
<PRE>
static java.lang.Object <B>castNumeric</B>(java.lang.Object orig,
int sourceType,
int targetType)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="convert(java.lang.Object, java.lang.Object, int, java.lang.String)"><!-- --></A><H3>
convert</H3>
<PRE>
static java.lang.Object <B>convert</B>(java.lang.Object callerReference,
java.lang.Object x,
int jdbcType,
java.lang.String charSet)
throws java.sql.SQLException</PRE>
<DL>
<DD>Convert an existing data object to the specified JDBC type.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>callerReference</CODE> - an object reference to the caller of this method;
must be a <code>Connection</code>,
<code>Statement</code> or <code>ResultSet</code><DD><CODE>x</CODE> - the data object to convert<DD><CODE>jdbcType</CODE> - the required type constant from
<code>java.sql.Types</code>
<DT><B>Returns:</B><DD>the converted data object
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE> - if the conversion is not supported or fails</DL>
</DD>
</DL>
<HR>
<A NAME="getJdbcType(java.lang.Object)"><!-- --></A><H3>
getJdbcType</H3>
<PRE>
static int <B>getJdbcType</B>(java.lang.Object value)</PRE>
<DL>
<DD>Get the JDBC type constant which matches the supplied Object type.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - The object to analyse.
<DT><B>Returns:</B><DD>The JDBC type constant as an <code>int</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="getJdbcType(java.lang.Class)"><!-- --></A><H3>
getJdbcType</H3>
<PRE>
static int <B>getJdbcType</B>(java.lang.Class typeClass)</PRE>
<DL>
<DD>Get the JDBC type constant which matches the supplied <code>Class</code>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>typeClass</CODE> - the <code>Class</code> to analyse
<DT><B>Returns:</B><DD>the JDBC type constant as an <code>int</code></DL>
</DD>
</DL>
<HR>
<A NAME="getJdbcTypeName(int)"><!-- --></A><H3>
getJdbcTypeName</H3>
<PRE>
static java.lang.String <B>getJdbcTypeName</B>(int jdbcType)</PRE>
<DL>
<DD>Get a String describing the supplied JDBC type constant.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>jdbcType</CODE> - The constant to be decoded.
<DT><B>Returns:</B><DD>The text decode of the type constant as a <code>String</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="getClassName(int)"><!-- --></A><H3>
getClassName</H3>
<PRE>
static java.lang.String <B>getClassName</B>(int jdbcType)</PRE>
<DL>
<DD>Retrieve the fully qualified java class name for the
supplied JDBC Types constant.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>jdbcType</CODE> - The JDBC Types constant.
<DT><B>Returns:</B><DD>The fully qualified java class name as a <code>String</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="embedData(java.lang.StringBuffer, java.lang.Object, boolean, net.sourceforge.jtds.jdbc.ConnectionJDBC2)"><!-- --></A><H3>
embedData</H3>
<PRE>
static void <B>embedData</B>(java.lang.StringBuffer buf,
java.lang.Object value,
boolean isUnicode,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc">ConnectionJDBC2</A> connection)
throws java.sql.SQLException</PRE>
<DL>
<DD>Embed the data object as a string literal in the buffer supplied.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>buf</CODE> - The buffer in which the data will be embedded.<DD><CODE>value</CODE> - The data object.<DD><CODE>isUnicode</CODE> - Set to <code>true</code> if Unicode strings should be used, else <code>false</code>.<DD><CODE>connection</CODE> - The <A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc"><CODE>ConnectionJDBC2</CODE></A> object.
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="getStatementKey(java.lang.String, net.sourceforge.jtds.jdbc.ParamInfo[], int, java.lang.String, boolean, boolean)"><!-- --></A><H3>
getStatementKey</H3>
<PRE>
static java.lang.String <B>getStatementKey</B>(java.lang.String sql,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] params,
int serverType,
java.lang.String catalog,
boolean autoCommit,
boolean cursor)</PRE>
<DL>
<DD>Generates a unique statement key for a given SQL statement.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sql</CODE> - the sql statement to generate the key for<DD><CODE>params</CODE> - the statement parameters<DD><CODE>serverType</CODE> - the type of server to generate the key for<DD><CODE>catalog</CODE> - the catalog is required for uniqueness on Microsoft
SQL Server<DD><CODE>autoCommit</CODE> - true if in auto commit mode<DD><CODE>cursor</CODE> - true if this is a prepared cursor
<DT><B>Returns:</B><DD>the unique statement key</DL>
</DD>
</DL>
<HR>
<A NAME="getParameterDefinitions(net.sourceforge.jtds.jdbc.ParamInfo[])"><!-- --></A><H3>
getParameterDefinitions</H3>
<PRE>
static java.lang.String <B>getParameterDefinitions</B>(<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] parameters)</PRE>
<DL>
<DD>Constructs a parameter definition string for use with
sp_executesql, sp_prepare, sp_prepexec, sp_cursoropen,
sp_cursorprepare and sp_cursorprepexec.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>parameters</CODE> - Parameters to construct the definition for
<DT><B>Returns:</B><DD>a parameter definition string</DL>
</DD>
</DL>
<HR>
<A NAME="substituteParamMarkers(java.lang.String, net.sourceforge.jtds.jdbc.ParamInfo[])"><!-- --></A><H3>
substituteParamMarkers</H3>
<PRE>
static java.lang.String <B>substituteParamMarkers</B>(java.lang.String sql,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] list)</PRE>
<DL>
<DD>Update the SQL string and replace the ? markers with parameter names
eg @P0, @P1 etc.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sql</CODE> - the SQL containing markers to substitute<DD><CODE>list</CODE> - the parameter list
<DT><B>Returns:</B><DD>the modified SQL as a <code>String</code></DL>
</DD>
</DL>
<HR>
<A NAME="substituteParameters(java.lang.String, net.sourceforge.jtds.jdbc.ParamInfo[], net.sourceforge.jtds.jdbc.ConnectionJDBC2)"><!-- --></A><H3>
substituteParameters</H3>
<PRE>
static java.lang.String <B>substituteParameters</B>(java.lang.String sql,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ParamInfo.html" title="class in net.sourceforge.jtds.jdbc">ParamInfo</A>[] list,
<A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc">ConnectionJDBC2</A> connection)
throws java.sql.SQLException</PRE>
<DL>
<DD>Substitute actual data for the parameter markers to simulate
parameter substitution in a PreparedStatement.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sql</CODE> - The SQL containing parameter markers to substitute.<DD><CODE>list</CODE> - The parameter descriptors.<DD><CODE>connection</CODE> - The current connection.
<DT><B>Returns:</B><DD>The modified SQL statement.
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="encodeString(java.lang.String, java.lang.String)"><!-- --></A><H3>
encodeString</H3>
<PRE>
static byte[] <B>encodeString</B>(java.lang.String cs,
java.lang.String value)</PRE>
<DL>
<DD>Encode a string into a byte array using the specified character set.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>cs</CODE> - The Charset name.<DD><CODE>value</CODE> - The value to encode.
<DT><B>Returns:</B><DD>The value of the String as a <code>byte[]</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="linkException(java.sql.SQLWarning, java.lang.Throwable)"><!-- --></A><H3>
linkException</H3>
<PRE>
public static java.sql.SQLWarning <B>linkException</B>(java.sql.SQLWarning sqle,
java.lang.Throwable cause)</PRE>
<DL>
<DD>Link the original cause to an <code>SQLWarning</code>.
<p>
This convenience method calls <A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#linkException(java.lang.Exception, java.lang.Throwable)"><CODE>linkException(Exception, Throwable)</CODE></A>
and casts the result for cleaner code elsewhere.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sqle</CODE> - The <code>SQLWarning</code> to enhance.<DD><CODE>cause</CODE> - The <code>Throwable</code> to link.
<DT><B>Returns:</B><DD>The original <code>SQLWarning</code> object.</DL>
</DD>
</DL>
<HR>
<A NAME="linkException(java.sql.SQLException, java.lang.Throwable)"><!-- --></A><H3>
linkException</H3>
<PRE>
public static java.sql.SQLException <B>linkException</B>(java.sql.SQLException sqle,
java.lang.Throwable cause)</PRE>
<DL>
<DD>Link the original cause to an <code>SQLException</code>.
<p>
This convenience method calls <A HREF="../../../../net/sourceforge/jtds/jdbc/Support.html#linkException(java.lang.Exception, java.lang.Throwable)"><CODE>linkException(Exception, Throwable)</CODE></A>
and casts the result for cleaner code elsewhere.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sqle</CODE> - The <code>SQLException</code> to enhance.<DD><CODE>cause</CODE> - The <code>Throwable</code> to link.
<DT><B>Returns:</B><DD>The original <code>SQLException</code> object.</DL>
</DD>
</DL>
<HR>
<A NAME="linkException(java.lang.Exception, java.lang.Throwable)"><!-- --></A><H3>
linkException</H3>
<PRE>
public static java.lang.Throwable <B>linkException</B>(java.lang.Exception exception,
java.lang.Throwable cause)</PRE>
<DL>
<DD>Link the original cause to an <code>Exception</code>.
<p>
If running under JVM 1.4+ the <code>Throwable.initCause(Throwable)</code>
method will be invoked to chain the exception, else the exception is
logged via the <A HREF="../../../../net/sourceforge/jtds/util/Logger.html" title="class in net.sourceforge.jtds.util"><CODE>Logger</CODE></A> class.
Modeled after the code written by Brian Heineman.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>exception</CODE> - The <code>Exception</code> to enhance.<DD><CODE>cause</CODE> - The <code>Throwable</code> to link.
<DT><B>Returns:</B><DD>The original <code>Exception</code> object.</DL>
</DD>
</DL>
<HR>
<A NAME="timeToZone(java.util.Date, java.util.Calendar)"><!-- --></A><H3>
timeToZone</H3>
<PRE>
public static long <B>timeToZone</B>(java.util.Date value,
java.util.Calendar target)</PRE>
<DL>
<DD>Convert a timestamp to a different Timezone.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the timestamp value<DD><CODE>target</CODE> - the <code>Calendar</code> containing the TimeZone
<DT><B>Returns:</B><DD>the new timestamp value as a <code>long</code></DL>
</DD>
</DL>
<HR>
<A NAME="timeFromZone(java.util.Date, java.util.Calendar)"><!-- --></A><H3>
timeFromZone</H3>
<PRE>
public static long <B>timeFromZone</B>(java.util.Date value,
java.util.Calendar target)</PRE>
<DL>
<DD>Convert a timestamp from a different Timezone.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - the timestamp value.<DD><CODE>target</CODE> - the Calendar containing the TimeZone.
<DT><B>Returns:</B><DD>The new timestamp value as a <code>long</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="convertLOB(java.lang.Object)"><!-- --></A><H3>
convertLOB</H3>
<PRE>
public static java.lang.Object <B>convertLOB</B>(java.lang.Object value)
throws java.sql.SQLException</PRE>
<DL>
<DD>Converts a LOB to the equivalent Java type, i.e. <code>Clob</code> to
<code>String</code> and <code>Blob</code> to <code>byte[]</code>. If the
value passed is not a LOB object, it is left unchanged and no exception
is thrown; the idea is to transparently convert only LOBs.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - an object that may be a LOB
<DT><B>Returns:</B><DD>if the value was a LOB, the equivalent Java object, otherwise
the original value
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE> - if an error occurs while reading the LOB contents</DL>
</DD>
</DL>
<HR>
<A NAME="convertLOBType(int)"><!-- --></A><H3>
convertLOBType</H3>
<PRE>
public static int <B>convertLOBType</B>(int type)</PRE>
<DL>
<DD>Converts a LOB type constant to the equivalent Java type constant, i.e.
<code>Types.CLOB</code> to <code>Types.LONGVARCHAR</code> and
<code>Types.BLOB</code> to <code>Types.LONGVARBINARY</code>. If the
type passed is not that of a LOB, it is left unchanged and no exception
is thrown; the idea is to transparently convert only LOB types.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>type</CODE> - a <CODE>Types</CODE> constant defining a JDBC type, possibly a
LOB
<DT><B>Returns:</B><DD>if the type was that of a LOB, the equivalent Java object type,
otherwise the original type</DL>
</DD>
</DL>
<HR>
<A NAME="isWindowsOS()"><!-- --></A><H3>
isWindowsOS</H3>
<PRE>
public static boolean <B>isWindowsOS</B>()</PRE>
<DL>
<DD>Checks the <code>os.name</code> system property to see if it starts
with "windows".
<P>
<DD><DL>
<DT><B>Returns:</B><DD><code>true</code> if <code>os.name</code> starts with "windows",
else <code>false</code>.</DL>
</DD>
</DL>
<HR>
<A NAME="getConnection(java.lang.Object)"><!-- --></A><H3>
getConnection</H3>
<PRE>
private static <A HREF="../../../../net/sourceforge/jtds/jdbc/ConnectionJDBC2.html" title="class in net.sourceforge.jtds.jdbc">ConnectionJDBC2</A> <B>getConnection</B>(java.lang.Object callerReference)</PRE>
<DL>
<DD>Returns the connection for a given <code>ResultSet</code>,
<code>Statement</code> or <code>Connection</code> object.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>callerReference</CODE> - an object reference to the caller of this method;
must be a <code>Connection</code>, <code>Statement</code> or
<code>ResultSet</code>
<DT><B>Returns:</B><DD>a connection</DL>
</DD>
</DL>
<HR>
<A NAME="calculateNamedPipeBufferSize(int, int)"><!-- --></A><H3>
calculateNamedPipeBufferSize</H3>
<PRE>
static int <B>calculateNamedPipeBufferSize</B>(int tdsVersion,
int packetSize)</PRE>
<DL>
<DD>Calculate the buffer size to use when buffering the <code>InputStream</code>
for named pipes.
<p/>
The buffer size is tied directly to the packet size because each request
to the <code>SmbNamedPipe</code> will send a request for a particular
size of packet. In other words, if you only request 1 byte, the
<code>SmbNamedPipe</code> will send a request out and only ask for 1 byte
back. Buffering the expected packet size ensures that all of the data
will be returned in the buffer without wasting any space.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>tdsVersion</CODE> - the TDS version for the connection<DD><CODE>packetSize</CODE> - requested packet size for the connection
<DT><B>Returns:</B><DD>minimum default packet size if <code>packetSize == 0</code>,
else <code>packetSize</code></DL>
</DD>
</DL>
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