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Joins (OpenJPA Parent POM 2.3.0 API) | |
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<FONT SIZE="-1"> | |
org.apache.openjpa.jdbc.sql</FONT> | |
<BR> | |
Interface Joins</H2> | |
<HR> | |
<DL> | |
<DT><PRE>public interface <B>Joins</B></DL> | |
</PRE> | |
<P> | |
Tracks joins made when traversing relations in a select. | |
<P> | |
<P> | |
<DL> | |
<DT><B>Author:</B></DT> | |
<DD>Abe White</DD> | |
</DL> | |
<HR> | |
<P> | |
<!-- ========== METHOD SUMMARY =========== --> | |
<A NAME="method_summary"><!-- --></A> | |
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
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<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> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#crossJoin(org.apache.openjpa.jdbc.schema.Table, org.apache.openjpa.jdbc.schema.Table)">crossJoin</A></B>(<A HREF="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</A> localTable, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</A> foreignTable)</CODE> | |
<BR> | |
Perform a cross join on the given tables.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#getCorrelatedVariable()">getCorrelatedVariable</A></B>()</CODE> | |
<BR> | |
Return correlated variable name</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> boolean</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#isEmpty()">isEmpty</A></B>()</CODE> | |
<BR> | |
Whether we have any joins.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> boolean</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#isOuter()">isOuter</A></B>()</CODE> | |
<BR> | |
Whether this joins path results in outer joins.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#join(org.apache.openjpa.jdbc.schema.ForeignKey, boolean, boolean)">join</A></B>(<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
boolean inverse, | |
boolean toMany)</CODE> | |
<BR> | |
Join the columns of the given foreign key.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#joinRelation(java.lang.String, org.apache.openjpa.jdbc.schema.ForeignKey, org.apache.openjpa.jdbc.meta.ClassMapping, int, boolean, boolean)">joinRelation</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</A> target, | |
int subclasses, | |
boolean inverse, | |
boolean toMany)</CODE> | |
<BR> | |
Join the columns of the given foreign key, which represents a relation | |
via the given field name.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> void</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#moveJoinsToParent()">moveJoinsToParent</A></B>()</CODE> | |
<BR> | |
Move joins that belong to subquery's parent</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#outerJoin(org.apache.openjpa.jdbc.schema.ForeignKey, boolean, boolean)">outerJoin</A></B>(<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
boolean inverse, | |
boolean toMany)</CODE> | |
<BR> | |
Join the columns of the given foreign key.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#outerJoinRelation(java.lang.String, org.apache.openjpa.jdbc.schema.ForeignKey, org.apache.openjpa.jdbc.meta.ClassMapping, int, boolean, boolean)">outerJoinRelation</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</A> target, | |
int subclasses, | |
boolean inverse, | |
boolean toMany)</CODE> | |
<BR> | |
Join the columns of the given foreign key, which represents a relation | |
via the given field name.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#setCorrelatedVariable(java.lang.String)">setCorrelatedVariable</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> var)</CODE> | |
<BR> | |
Set the correlated variable name being traversed into | |
with the next join.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#setJoinContext(org.apache.openjpa.kernel.exps.Context)">setJoinContext</A></B>(<A HREF="../../../../../org/apache/openjpa/kernel/exps/Context.html" title="class in org.apache.openjpa.kernel.exps">Context</A> context)</CODE> | |
<BR> | |
Set subquery context when traversing into the next join is | |
in transition from parent context to subquery.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#setSubselect(java.lang.String)">setSubselect</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> alias)</CODE> | |
<BR> | |
Set the subquery alias.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html#setVariable(java.lang.String)">setVariable</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> var)</CODE> | |
<BR> | |
Set the variable name being traversed into with the next join.</TD> | |
</TR> | |
</TABLE> | |
| |
<P> | |
<!-- ============ 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="isEmpty()"><!-- --></A><H3> | |
isEmpty</H3> | |
<PRE> | |
boolean <B>isEmpty</B>()</PRE> | |
<DL> | |
<DD>Whether we have any joins. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="isOuter()"><!-- --></A><H3> | |
isOuter</H3> | |
<PRE> | |
boolean <B>isOuter</B>()</PRE> | |
<DL> | |
<DD>Whether this joins path results in outer joins. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="crossJoin(org.apache.openjpa.jdbc.schema.Table, org.apache.openjpa.jdbc.schema.Table)"><!-- --></A><H3> | |
crossJoin</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>crossJoin</B>(<A HREF="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</A> localTable, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</A> foreignTable)</PRE> | |
<DL> | |
<DD>Perform a cross join on the given tables. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="join(org.apache.openjpa.jdbc.schema.ForeignKey, boolean, boolean)"><!-- --></A><H3> | |
join</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>join</B>(<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
boolean inverse, | |
boolean toMany)</PRE> | |
<DL> | |
<DD>Join the columns of the given foreign key. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="outerJoin(org.apache.openjpa.jdbc.schema.ForeignKey, boolean, boolean)"><!-- --></A><H3> | |
outerJoin</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>outerJoin</B>(<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
boolean inverse, | |
boolean toMany)</PRE> | |
<DL> | |
<DD>Join the columns of the given foreign key. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="joinRelation(java.lang.String, org.apache.openjpa.jdbc.schema.ForeignKey, org.apache.openjpa.jdbc.meta.ClassMapping, int, boolean, boolean)"><!-- --></A><H3> | |
joinRelation</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>joinRelation</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</A> target, | |
int subclasses, | |
boolean inverse, | |
boolean toMany)</PRE> | |
<DL> | |
<DD>Join the columns of the given foreign key, which represents a relation | |
via the given field name. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="outerJoinRelation(java.lang.String, org.apache.openjpa.jdbc.schema.ForeignKey, org.apache.openjpa.jdbc.meta.ClassMapping, int, boolean, boolean)"><!-- --></A><H3> | |
outerJoinRelation</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>outerJoinRelation</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/schema/ForeignKey.html" title="class in org.apache.openjpa.jdbc.schema">ForeignKey</A> fk, | |
<A HREF="../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</A> target, | |
int subclasses, | |
boolean inverse, | |
boolean toMany)</PRE> | |
<DL> | |
<DD>Join the columns of the given foreign key, which represents a relation | |
via the given field name. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="setVariable(java.lang.String)"><!-- --></A><H3> | |
setVariable</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>setVariable</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> var)</PRE> | |
<DL> | |
<DD>Set the variable name being traversed into with the next join. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="setSubselect(java.lang.String)"><!-- --></A><H3> | |
setSubselect</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>setSubselect</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> alias)</PRE> | |
<DL> | |
<DD>Set the subquery alias. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="setJoinContext(org.apache.openjpa.kernel.exps.Context)"><!-- --></A><H3> | |
setJoinContext</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>setJoinContext</B>(<A HREF="../../../../../org/apache/openjpa/kernel/exps/Context.html" title="class in org.apache.openjpa.kernel.exps">Context</A> context)</PRE> | |
<DL> | |
<DD>Set subquery context when traversing into the next join is | |
in transition from parent context to subquery. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>context</CODE> - </DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="setCorrelatedVariable(java.lang.String)"><!-- --></A><H3> | |
setCorrelatedVariable</H3> | |
<PRE> | |
<A HREF="../../../../../org/apache/openjpa/jdbc/sql/Joins.html" title="interface in org.apache.openjpa.jdbc.sql">Joins</A> <B>setCorrelatedVariable</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> var)</PRE> | |
<DL> | |
<DD>Set the correlated variable name being traversed into | |
with the next join. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getCorrelatedVariable()"><!-- --></A><H3> | |
getCorrelatedVariable</H3> | |
<PRE> | |
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getCorrelatedVariable</B>()</PRE> | |
<DL> | |
<DD>Return correlated variable name | |
<P> | |
<DD><DL> | |
<DT><B>Returns:</B><DD></DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="moveJoinsToParent()"><!-- --></A><H3> | |
moveJoinsToParent</H3> | |
<PRE> | |
void <B>moveJoinsToParent</B>()</PRE> | |
<DL> | |
<DD>Move joins that belong to subquery's parent | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
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