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| ResultIterator (Cayenne API Documentation - v.1.2) |
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| org.objectstyle.cayenne.access</FONT> |
| <BR> |
| Interface ResultIterator</H2> |
| <DL> |
| <DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/objectstyle/cayenne/access/DefaultResultIterator.html" title="class in org.objectstyle.cayenne.access">DefaultResultIterator</A>, <A HREF="../../../../org/objectstyle/cayenne/access/util/DistinctResultIterator.html" title="class in org.objectstyle.cayenne.access.util">DistinctResultIterator</A>, <A HREF="../../../../org/objectstyle/cayenne/access/jdbc/JDBCResultIterator.html" title="class in org.objectstyle.cayenne.access.jdbc">JDBCResultIterator</A></DD> |
| </DL> |
| <HR> |
| <DL> |
| <DT><PRE>public interface <B>ResultIterator</B></DL> |
| </PRE> |
| |
| <P> |
| Defines API of an iterator over the records returned as a result |
| of SelectQuery execution. Usually a ResultIterator is supported by |
| an open java.sql.ResultSet, therefore most of the methods would throw |
| checked exceptions. ResultIterators must be explicitly closed when the |
| user is done working with them. |
| |
| <p><i>For more information see <a href="../../../../../../userguide/index.html" |
| target="_top">Cayenne User Guide.</a></i></p> |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>Author:</B></DT> |
| <DD>Andrei Adamchik</DD> |
| </DL> |
| <HR> |
| |
| <P> |
| |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Method Summary</B></FONT></TH> |
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| <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/objectstyle/cayenne/access/ResultIterator.html#close()">close</A></B>()</CODE> |
| |
| <BR> |
| Closes ResultIterator and associated ResultSet.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> java.util.List</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/access/ResultIterator.html#dataRows(boolean)">dataRows</A></B>(boolean close)</CODE> |
| |
| <BR> |
| Returns all unread data rows from ResultSet and closes this iterator |
| if asked to do so.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/access/ResultIterator.html#getDataRowWidth()">getDataRowWidth</A></B>()</CODE> |
| |
| <BR> |
| Returns the number of columns in the result row.</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/objectstyle/cayenne/access/ResultIterator.html#hasNextRow()">hasNextRow</A></B>()</CODE> |
| |
| <BR> |
| Returns true if there is at least one more record |
| that can be read from the iterator.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> java.util.Map</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/access/ResultIterator.html#nextDataRow()">nextDataRow</A></B>()</CODE> |
| |
| <BR> |
| Returns the next result row as a Map.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> java.util.Map</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../org/objectstyle/cayenne/access/ResultIterator.html#nextObjectId(org.objectstyle.cayenne.map.DbEntity)">nextObjectId</A></B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A> entity)</CODE> |
| |
| <BR> |
| Returns a map of ObjectId values from the next result row.</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/objectstyle/cayenne/access/ResultIterator.html#skipDataRow()">skipDataRow</A></B>()</CODE> |
| |
| <BR> |
| Skips current data row instead of reading it.</TD> |
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| |
| <A NAME="dataRows(boolean)"><!-- --></A><H3> |
| dataRows</H3> |
| <PRE> |
| java.util.List <B>dataRows</B>(boolean close) |
| throws <A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></PRE> |
| <DL> |
| <DD>Returns all unread data rows from ResultSet and closes this iterator |
| if asked to do so. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="hasNextRow()"><!-- --></A><H3> |
| hasNextRow</H3> |
| <PRE> |
| boolean <B>hasNextRow</B>() |
| throws <A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></PRE> |
| <DL> |
| <DD>Returns true if there is at least one more record |
| that can be read from the iterator. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="nextDataRow()"><!-- --></A><H3> |
| nextDataRow</H3> |
| <PRE> |
| java.util.Map <B>nextDataRow</B>() |
| throws <A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></PRE> |
| <DL> |
| <DD>Returns the next result row as a Map. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="nextObjectId(org.objectstyle.cayenne.map.DbEntity)"><!-- --></A><H3> |
| nextObjectId</H3> |
| <PRE> |
| java.util.Map <B>nextObjectId</B>(<A HREF="../../../../org/objectstyle/cayenne/map/DbEntity.html" title="class in org.objectstyle.cayenne.map">DbEntity</A> entity) |
| throws <A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></PRE> |
| <DL> |
| <DD>Returns a map of ObjectId values from the next result row. |
| Primary key columns are determined from the provided DbEntity. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></CODE><DT><B>Since:</B></DT> |
| <DD>1.1</DD> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="skipDataRow()"><!-- --></A><H3> |
| skipDataRow</H3> |
| <PRE> |
| void <B>skipDataRow</B>() |
| throws <A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></PRE> |
| <DL> |
| <DD>Skips current data row instead of reading it. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="close()"><!-- --></A><H3> |
| close</H3> |
| <PRE> |
| void <B>close</B>() |
| throws <A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></PRE> |
| <DL> |
| <DD>Closes ResultIterator and associated ResultSet. This method must be |
| called explicitly when the user is finished processing the records. |
| Otherwise unused database resources will not be released properly. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../org/objectstyle/cayenne/CayenneException.html" title="class in org.objectstyle.cayenne">CayenneException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getDataRowWidth()"><!-- --></A><H3> |
| getDataRowWidth</H3> |
| <PRE> |
| int <B>getDataRowWidth</B>()</PRE> |
| <DL> |
| <DD>Returns the number of columns in the result row. |
| <P> |
| <DD><DL> |
| <DT><B>Since:</B></DT> |
| <DD>1.0.6</DD> |
| </DL> |
| </DD> |
| </DL> |
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