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DeleteBatchQuery (Cayenne API Documentation - v.1.2)
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org.objectstyle.cayenne.query</FONT>
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Class DeleteBatchQuery</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">org.objectstyle.cayenne.query.BatchQuery</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.objectstyle.cayenne.query.DeleteBatchQuery</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable, <A HREF="../../../../org/objectstyle/cayenne/query/Query.html" title="interface in org.objectstyle.cayenne.query">Query</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>DeleteBatchQuery</B><DT>extends <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></DL>
</PRE>
<P>
Batched delete query.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Andriy Shapochka</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#org.objectstyle.cayenne.query.DeleteBatchQuery">Serialized Form</A></DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<B>Field Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;java.util.List</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#dbAttributes">dbAttributes</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.util.List</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#qualifierSnapshots">qualifierSnapshots</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;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#usingOptimisticLocking">usingOptimisticLocking</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_org.objectstyle.cayenne.query.BatchQuery"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from class org.objectstyle.cayenne.query.<A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#batchIndex">batchIndex</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#dbEntity">dbEntity</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#name">name</A></CODE></TD>
</TR>
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&nbsp;
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#DeleteBatchQuery(org.objectstyle.cayenne.map.DbEntity, int)">DeleteBatchQuery</A></B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;dbEntity,
int&nbsp;batchCapacity)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates new DeleteBatchQuery.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#DeleteBatchQuery(org.objectstyle.cayenne.map.DbEntity, java.util.List, java.util.Collection, int)">DeleteBatchQuery</A></B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;dbEntity,
java.util.List&nbsp;qualifierAttributes,
java.util.Collection&nbsp;nullQualifierNames,
int&nbsp;batchCapacity)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates new DeleteBatchQuery.</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#add(java.util.Map)">add</A></B>(java.util.Map&nbsp;dataObjectId)</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.util.Map</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#getCurrentQualifier()">getCurrentQualifier</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a snapshot of the current qualifier values.</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/query/DeleteBatchQuery.html#getDbAttributes()">getDbAttributes</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a list of DbAttributes describing batch parameters.</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/query/DeleteBatchQuery.html#getQualifierAttributes()">getQualifierAttributes</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/query/DeleteBatchQuery.html#getValue(int)">getValue</A></B>(int&nbsp;dbAttributeIndex)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a value at a given index for the current batch iteration.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#isNull(org.objectstyle.cayenne.map.DbAttribute)">isNull</A></B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbAttribute.html" title="class in org.objectstyle.cayenne.map">DbAttribute</A>&nbsp;attribute)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns true if a given attribute always has a null value in the batch.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#isUsingOptimisticLocking()">isUsingOptimisticLocking</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns true if the batch query uses optimistic locking.</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/query/DeleteBatchQuery.html#setUsingOptimisticLocking(boolean)">setUsingOptimisticLocking</A></B>(boolean&nbsp;usingOptimisticLocking)</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;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/query/DeleteBatchQuery.html#size()">size</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the number of parameter rows in a batch.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.objectstyle.cayenne.query.BatchQuery"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class org.objectstyle.cayenne.query.<A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#createSQLAction(org.objectstyle.cayenne.query.SQLActionVisitor)">createSQLAction</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getDbEntity()">getDbEntity</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getMetaData(org.objectstyle.cayenne.map.EntityResolver)">getMetaData</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getName()">getName</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getObject(int)">getObject</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getObjectId()">getObjectId</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getRoot()">getRoot</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getValue(java.util.Map, org.objectstyle.cayenne.map.DbAttribute)">getValue</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getValuesForUpdateParameters(boolean)">getValuesForUpdateParameters</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#isEmpty()">isEmpty</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#next()">next</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#reset()">reset</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#route(org.objectstyle.cayenne.query.QueryRouter, org.objectstyle.cayenne.map.EntityResolver, org.objectstyle.cayenne.query.Query)">route</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#setName(java.lang.String)">setName</A>, <A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#setRoot(java.lang.Object)">setRoot</A></CODE></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 =========== -->
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<B>Field Detail</B></FONT></TH>
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<A NAME="qualifierSnapshots"><!-- --></A><H3>
qualifierSnapshots</H3>
<PRE>
protected java.util.List <B>qualifierSnapshots</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="dbAttributes"><!-- --></A><H3>
dbAttributes</H3>
<PRE>
protected java.util.List <B>dbAttributes</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>
<A NAME="usingOptimisticLocking"><!-- --></A><H3>
usingOptimisticLocking</H3>
<PRE>
protected boolean <B>usingOptimisticLocking</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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<B>Constructor Detail</B></FONT></TH>
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</TABLE>
<A NAME="DeleteBatchQuery(org.objectstyle.cayenne.map.DbEntity, int)"><!-- --></A><H3>
DeleteBatchQuery</H3>
<PRE>
public <B>DeleteBatchQuery</B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;dbEntity,
int&nbsp;batchCapacity)</PRE>
<DL>
<DD>Creates new DeleteBatchQuery. Used by
ContextCommit.categorizeFlattenedDeletesAndCreateBatches for deleting flattenned
relationships.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>dbEntity</CODE> - Table or view to delete.<DD><CODE>batchCapacity</CODE> - Estimated size of the batch.</DL>
</DL>
<HR>
<A NAME="DeleteBatchQuery(org.objectstyle.cayenne.map.DbEntity, java.util.List, java.util.Collection, int)"><!-- --></A><H3>
DeleteBatchQuery</H3>
<PRE>
public <B>DeleteBatchQuery</B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A>&nbsp;dbEntity,
java.util.List&nbsp;qualifierAttributes,
java.util.Collection&nbsp;nullQualifierNames,
int&nbsp;batchCapacity)</PRE>
<DL>
<DD>Creates new DeleteBatchQuery.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>dbEntity</CODE> - Table or view to delete.<DD><CODE>qualifierAttributes</CODE> - DbAttributes used in the WHERE clause.<DD><CODE>nullQualifierNames</CODE> - DbAttribute names in the WHERE clause that have null
values.<DD><CODE>batchCapacity</CODE> - Estimated size of the batch.</DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="isNull(org.objectstyle.cayenne.map.DbAttribute)"><!-- --></A><H3>
isNull</H3>
<PRE>
public boolean <B>isNull</B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbAttribute.html" title="class in org.objectstyle.cayenne.map">DbAttribute</A>&nbsp;attribute)</PRE>
<DL>
<DD>Returns true if a given attribute always has a null value in the batch.
<P>
<DD><DL>
<DT><B>Since:</B></DT>
<DD>1.2</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="isUsingOptimisticLocking()"><!-- --></A><H3>
isUsingOptimisticLocking</H3>
<PRE>
public boolean <B>isUsingOptimisticLocking</B>()</PRE>
<DL>
<DD>Returns true if the batch query uses optimistic locking.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#isUsingOptimisticLocking()">isUsingOptimisticLocking</A></CODE> in class <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Since:</B></DT>
<DD>1.2</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="setUsingOptimisticLocking(boolean)"><!-- --></A><H3>
setUsingOptimisticLocking</H3>
<PRE>
public void <B>setUsingOptimisticLocking</B>(boolean&nbsp;usingOptimisticLocking)</PRE>
<DL>
<DD><DL>
<DT><B>Since:</B></DT>
<DD>1.2</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="getQualifierAttributes()"><!-- --></A><H3>
getQualifierAttributes</H3>
<PRE>
public java.util.List <B>getQualifierAttributes</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Since:</B></DT>
<DD>1.2</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="getValue(int)"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Object <B>getValue</B>(int&nbsp;dbAttributeIndex)</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getValue(int)">BatchQuery</A></CODE></B></DD>
<DD>Returns a value at a given index for the current batch iteration.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getValue(int)">getValue</A></CODE> in class <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="add(java.util.Map)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(java.util.Map&nbsp;dataObjectId)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#size()">BatchQuery</A></CODE></B></DD>
<DD>Returns the number of parameter rows in a batch.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#size()">size</A></CODE> in class <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getDbAttributes()"><!-- --></A><H3>
getDbAttributes</H3>
<PRE>
public java.util.List <B>getDbAttributes</B>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getDbAttributes()">BatchQuery</A></CODE></B></DD>
<DD>Returns a list of DbAttributes describing batch parameters.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html#getDbAttributes()">getDbAttributes</A></CODE> in class <CODE><A HREF="../../../../org/objectstyle/cayenne/query/BatchQuery.html" title="class in org.objectstyle.cayenne.query">BatchQuery</A></CODE></DL>
</DD>
<DD><DL>
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<A NAME="getCurrentQualifier()"><!-- --></A><H3>
getCurrentQualifier</H3>
<PRE>
public java.util.Map <B>getCurrentQualifier</B>()</PRE>
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<DD>Returns a snapshot of the current qualifier values.
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<DT><B>Since:</B></DT>
<DD>1.2</DD>
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