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JdbcPkGenerator (Cayenne API Documentation - v.1.2)
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org.objectstyle.cayenne.dba</FONT>
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Class JdbcPkGenerator</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.objectstyle.cayenne.dba.JdbcPkGenerator</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/objectstyle/cayenne/dba/db2/DB2PkGenerator.html" title="class in org.objectstyle.cayenne.dba.db2">DB2PkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/derby/DerbyPkGenerator.html" title="class in org.objectstyle.cayenne.dba.derby">DerbyPkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/firebird/FirebirdPkGenerator.html" title="class in org.objectstyle.cayenne.dba.firebird">FirebirdPkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/frontbase/FrontBasePkGenerator.html" title="class in org.objectstyle.cayenne.dba.frontbase">FrontBasePkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/mysql/MySQLPkGenerator.html" title="class in org.objectstyle.cayenne.dba.mysql">MySQLPkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/openbase/OpenBasePkGenerator.html" title="class in org.objectstyle.cayenne.dba.openbase">OpenBasePkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/oracle/OraclePkGenerator.html" title="class in org.objectstyle.cayenne.dba.oracle">OraclePkGenerator</A>, <A HREF="../../../../org/objectstyle/cayenne/dba/sybase/SybasePkGenerator.html" title="class in org.objectstyle.cayenne.dba.sybase">SybasePkGenerator</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>JdbcPkGenerator</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></DL>
</PRE>
<P>
Default primary key generator implementation. Uses a lookup table named
"AUTO_PK_SUPPORT" to search and increment primary keys for tables.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Andrei Adamchik</DD>
</DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
<A NAME="field_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Field Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#DEFAULT_PK_CACHE_SIZE">DEFAULT_PK_CACHE_SIZE</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected static&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#NEXT_ID">NEXT_ID</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>Since 1.2 unused.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected static&nbsp;<A HREF="../../../../org/objectstyle/cayenne/map/ObjAttribute.html" title="class in org.objectstyle.cayenne.map">ObjAttribute</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#objDesc">objDesc</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>Since 1.2 unused.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.util.Map</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkCache">pkCache</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkCacheSize">pkCacheSize</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected static&nbsp;<A HREF="../../../../org/objectstyle/cayenne/map/DbAttribute.html" title="class in org.objectstyle.cayenne.map">DbAttribute</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#resultDesc">resultDesc</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>Since 1.2 unused.</I></TD>
</TR>
</TABLE>
&nbsp;
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#JdbcPkGenerator()">JdbcPkGenerator</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#autoPkTableExists(org.objectstyle.cayenne.access.DataNode)">autoPkTableExists</A></B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Checks if AUTO_PK_TABLE already exists in the database.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#binaryPK(org.objectstyle.cayenne.map.DbEntity)">binaryPK</A></B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;entity)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#createAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)">createAutoPk</A></B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
java.util.List&nbsp;dbEntities)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Generates necessary database objects to provide automatic primary key support.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.util.List</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#createAutoPkStatements(java.util.List)">createAutoPkStatements</A></B>(java.util.List&nbsp;dbEntities)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a list of SQL strings needed to generates database objects to provide
automatic primary support for the list of entities.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#dropAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)">dropAutoPk</A></B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
java.util.List&nbsp;dbEntities)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Drops table named "AUTO_PK_SUPPORT" if it exists in the database.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.util.List</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#dropAutoPkStatements(java.util.List)">dropAutoPkStatements</A></B>(java.util.List&nbsp;dbEntities)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns SQL string needed to drop database objects associated with automatic
primary key generation.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#dropAutoPkString()">dropAutoPkString</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#generatePkForDbEntity(org.objectstyle.cayenne.access.DataNode, org.objectstyle.cayenne.map.DbEntity)">generatePkForDbEntity</A></B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;ent)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Generates new (unique and non-repeating) primary key for specified dbEntity.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#generatePkForDbEntityString(org.objectstyle.cayenne.map.DbEntity)">generatePkForDbEntityString</A></B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;ent)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>Since 1.2 corresponding interface method is deprecated.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#getPkCacheSize()">getPkCacheSize</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a size of the entity primary key cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkCreateString(java.lang.String)">pkCreateString</A></B>(java.lang.String&nbsp;entName)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkDeleteString(java.util.List)">pkDeleteString</A></B>(java.util.List&nbsp;dbEntities)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkFromDatabase(org.objectstyle.cayenne.access.DataNode, org.objectstyle.cayenne.map.DbEntity)">pkFromDatabase</A></B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;ent)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Performs primary key generation ignoring cache.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkSelectString(java.lang.String)">pkSelectString</A></B>(java.lang.String&nbsp;entName)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkTableCreateString()">pkTableCreateString</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#pkUpdateString(java.lang.String)">pkUpdateString</A></B>(java.lang.String&nbsp;entName)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#reset()">reset</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Resets any cached primary keys forcing generator to go to the database next time id
generation is requested.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#runUpdate(org.objectstyle.cayenne.access.DataNode, java.lang.String)">runUpdate</A></B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
java.lang.String&nbsp;sql)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Runs JDBC update over a Connection obtained from DataNode.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/dba/JdbcPkGenerator.html#setPkCacheSize(int)">setPkCacheSize</A></B>(int&nbsp;pkCacheSize)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the size of the entity primary key cache.</TD>
</TR>
</TABLE>
&nbsp;<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">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ FIELD DETAIL =========== -->
<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Field Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="DEFAULT_PK_CACHE_SIZE"><!-- --></A><H3>
DEFAULT_PK_CACHE_SIZE</H3>
<PRE>
public static final int <B>DEFAULT_PK_CACHE_SIZE</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.objectstyle.cayenne.dba.JdbcPkGenerator.DEFAULT_PK_CACHE_SIZE">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="NEXT_ID"><!-- --></A><H3>
NEXT_ID</H3>
<PRE>
protected static final java.lang.String <B>NEXT_ID</B></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Since 1.2 unused.</I><DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.objectstyle.cayenne.dba.JdbcPkGenerator.NEXT_ID">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="objDesc"><!-- --></A><H3>
objDesc</H3>
<PRE>
protected static final <A HREF="../../../../org/objectstyle/cayenne/map/ObjAttribute.html" title="class in org.objectstyle.cayenne.map">ObjAttribute</A>[] <B>objDesc</B></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Since 1.2 unused.</I><DL>
</DL>
</DL>
<HR>
<A NAME="resultDesc"><!-- --></A><H3>
resultDesc</H3>
<PRE>
protected static final <A HREF="../../../../org/objectstyle/cayenne/map/DbAttribute.html" title="class in org.objectstyle.cayenne.map">DbAttribute</A>[] <B>resultDesc</B></PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Since 1.2 unused.</I><DL>
</DL>
</DL>
<HR>
<A NAME="pkCache"><!-- --></A><H3>
pkCache</H3>
<PRE>
protected java.util.Map <B>pkCache</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="pkCacheSize"><!-- --></A><H3>
pkCacheSize</H3>
<PRE>
protected int <B>pkCacheSize</B></PRE>
<DL>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<A NAME="JdbcPkGenerator()"><!-- --></A><H3>
JdbcPkGenerator</H3>
<PRE>
public <B>JdbcPkGenerator</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
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</TABLE>
<A NAME="createAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)"><!-- --></A><H3>
createAutoPk</H3>
<PRE>
public void <B>createAutoPk</B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
java.util.List&nbsp;dbEntities)
throws java.lang.Exception</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#createAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)">PkGenerator</A></CODE></B></DD>
<DD>Generates necessary database objects to provide automatic primary key support.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#createAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)">createAutoPk</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>node</CODE> - node that provides access to a DataSource.<DD><CODE>dbEntities</CODE> - a list of entities that require primary key autogeneration
support
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="createAutoPkStatements(java.util.List)"><!-- --></A><H3>
createAutoPkStatements</H3>
<PRE>
public java.util.List <B>createAutoPkStatements</B>(java.util.List&nbsp;dbEntities)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#createAutoPkStatements(java.util.List)">PkGenerator</A></CODE></B></DD>
<DD>Returns a list of SQL strings needed to generates database objects to provide
automatic primary support for the list of entities. No actual database operations
are performed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#createAutoPkStatements(java.util.List)">createAutoPkStatements</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="dropAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)"><!-- --></A><H3>
dropAutoPk</H3>
<PRE>
public void <B>dropAutoPk</B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
java.util.List&nbsp;dbEntities)
throws java.lang.Exception</PRE>
<DL>
<DD>Drops table named "AUTO_PK_SUPPORT" if it exists in the database.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#dropAutoPk(org.objectstyle.cayenne.access.DataNode, java.util.List)">dropAutoPk</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>node</CODE> - node that provides access to a DataSource.<DD><CODE>dbEntities</CODE> - a list of entities whose primary key autogeneration support
should be dropped.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="dropAutoPkStatements(java.util.List)"><!-- --></A><H3>
dropAutoPkStatements</H3>
<PRE>
public java.util.List <B>dropAutoPkStatements</B>(java.util.List&nbsp;dbEntities)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#dropAutoPkStatements(java.util.List)">PkGenerator</A></CODE></B></DD>
<DD>Returns SQL string needed to drop database objects associated with automatic
primary key generation. No actual database operations are performed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#dropAutoPkStatements(java.util.List)">dropAutoPkStatements</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="pkTableCreateString()"><!-- --></A><H3>
pkTableCreateString</H3>
<PRE>
protected java.lang.String <B>pkTableCreateString</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="pkDeleteString(java.util.List)"><!-- --></A><H3>
pkDeleteString</H3>
<PRE>
protected java.lang.String <B>pkDeleteString</B>(java.util.List&nbsp;dbEntities)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="pkCreateString(java.lang.String)"><!-- --></A><H3>
pkCreateString</H3>
<PRE>
protected java.lang.String <B>pkCreateString</B>(java.lang.String&nbsp;entName)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="pkSelectString(java.lang.String)"><!-- --></A><H3>
pkSelectString</H3>
<PRE>
protected java.lang.String <B>pkSelectString</B>(java.lang.String&nbsp;entName)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="pkUpdateString(java.lang.String)"><!-- --></A><H3>
pkUpdateString</H3>
<PRE>
protected java.lang.String <B>pkUpdateString</B>(java.lang.String&nbsp;entName)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="dropAutoPkString()"><!-- --></A><H3>
dropAutoPkString</H3>
<PRE>
protected java.lang.String <B>dropAutoPkString</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="autoPkTableExists(org.objectstyle.cayenne.access.DataNode)"><!-- --></A><H3>
autoPkTableExists</H3>
<PRE>
protected boolean <B>autoPkTableExists</B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node)
throws java.sql.SQLException</PRE>
<DL>
<DD>Checks if AUTO_PK_TABLE already exists in the database.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="runUpdate(org.objectstyle.cayenne.access.DataNode, java.lang.String)"><!-- --></A><H3>
runUpdate</H3>
<PRE>
public int <B>runUpdate</B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
java.lang.String&nbsp;sql)
throws java.sql.SQLException</PRE>
<DL>
<DD>Runs JDBC update over a Connection obtained from DataNode. Returns a number of
objects returned from update.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.sql.SQLException</CODE> - in case of query failure.</DL>
</DD>
</DL>
<HR>
<A NAME="generatePkForDbEntityString(org.objectstyle.cayenne.map.DbEntity)"><!-- --></A><H3>
generatePkForDbEntityString</H3>
<PRE>
public java.lang.String <B>generatePkForDbEntityString</B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;ent)</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>Since 1.2 corresponding interface method is deprecated.</I>
<P>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#generatePkForDbEntityString(org.objectstyle.cayenne.map.DbEntity)">PkGenerator</A></CODE></B></DD>
<DD>Returns SQL string that can generate new (unique and non-repeating) primary key for
specified DbEntity. No actual database operations are performed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#generatePkForDbEntityString(org.objectstyle.cayenne.map.DbEntity)">generatePkForDbEntityString</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="generatePkForDbEntity(org.objectstyle.cayenne.access.DataNode, org.objectstyle.cayenne.map.DbEntity)"><!-- --></A><H3>
generatePkForDbEntity</H3>
<PRE>
public java.lang.Object <B>generatePkForDbEntity</B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;ent)
throws java.lang.Exception</PRE>
<DL>
<DD><p>
Generates new (unique and non-repeating) primary key for specified dbEntity.
</p>
<p>
This implementation is naive since it does not lock the database rows when
executing select and subsequent update. Adapter-specific implementations are more
robust.
</p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#generatePkForDbEntity(org.objectstyle.cayenne.access.DataNode, org.objectstyle.cayenne.map.DbEntity)">generatePkForDbEntity</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
<DD><CODE>ent</CODE> - DbEntity for which automatic PK is generated.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="binaryPK(org.objectstyle.cayenne.map.DbEntity)"><!-- --></A><H3>
binaryPK</H3>
<PRE>
protected byte[] <B>binaryPK</B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;entity)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>a binary PK if DbEntity has a BINARY or VARBINARY pk, null otherwise. This
method will likely be deprecated in 1.1 in favor of a more generic
soultion.<DT><B>Since:</B></DT>
<DD>1.0.2</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="pkFromDatabase(org.objectstyle.cayenne.access.DataNode, org.objectstyle.cayenne.map.DbEntity)"><!-- --></A><H3>
pkFromDatabase</H3>
<PRE>
protected int <B>pkFromDatabase</B>(<A HREF="../../../../org/objectstyle/cayenne/access/DataNode.html" title="class in org.objectstyle.cayenne.access">DataNode</A>&nbsp;node,
<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;ent)
throws java.lang.Exception</PRE>
<DL>
<DD>Performs primary key generation ignoring cache. Generates a range of primary keys
as specified by "pkCacheSize" bean property.
<p>
This method is called internally from "generatePkForDbEntity" and then generated
range of key values is saved in cache for performance. Subclasses that implement
different primary key generation solutions should override this method, not
"generatePkForDbEntity".
</p>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="getPkCacheSize()"><!-- --></A><H3>
getPkCacheSize</H3>
<PRE>
public int <B>getPkCacheSize</B>()</PRE>
<DL>
<DD>Returns a size of the entity primary key cache. Default value is 20. If cache size
is set to a value less or equals than "one", no primary key caching is done.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setPkCacheSize(int)"><!-- --></A><H3>
setPkCacheSize</H3>
<PRE>
public void <B>setPkCacheSize</B>(int&nbsp;pkCacheSize)</PRE>
<DL>
<DD>Sets the size of the entity primary key cache. If <code>pkCacheSize</code>
parameter is less than 1, cache size is set to "one".
<p>
<i>Note that our tests show that setting primary key cache value to anything much
bigger than 20 does not give any significant performance increase. Therefore it
does not make sense to use bigger values, since this may potentially create big
gaps in the database primary key sequences in cases like application crashes or
restarts. </i>
</p>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#reset()">PkGenerator</A></CODE></B></DD>
<DD>Resets any cached primary keys forcing generator to go to the database next time id
generation is requested. May not be applicable for all generator implementations.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html#reset()">reset</A></CODE> in interface <CODE><A HREF="../../../../org/objectstyle/cayenne/dba/PkGenerator.html" title="interface in org.objectstyle.cayenne.dba">PkGenerator</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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