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Cursor
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jnicli</FONT>
<BR>
Interface Cursor</H2>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../jnicli/PrefetchedCursor.html" title="class in jnicli">PrefetchedCursor</A></DD>
</DL>
<HR>
<DL>
<DT>public interface <B>Cursor</B></DL>
<P>
Iterator through result set returned by Database.select.
There are two types of cursors: incremental and prefetched.
Incremental cursor fetch records on demand (one record at each iteration).
And prefetched cursor loads all selected records.
Prefetched cursor is used in case of remote database connections and when AUTOCOMMIT flag is set in select
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<CODE> long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../jnicli/Cursor.html#getOid()">getOid</A></B>()</CODE>
<BR>
Get OID of the current object. </TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../jnicli/Cursor.html#hasMoreElements()">hasMoreElements</A></B>()</CODE>
<BR>
Tests if this enumeration contains more elements.</TD>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../jnicli/Cursor.html#nextElement()">nextElement</A></B>()</CODE>
<BR>
Returns the next element of this enumeration if this enumeration
object has at least one more element to provide.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../jnicli/Cursor.html#size()">size</A></B>()</CODE>
<BR>
Get number of selected records</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../jnicli/Cursor.html#update()">update</A></B>()</CODE>
<BR>
Update current object. </TD>
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<A NAME="hasMoreElements()"><!-- --></A><H3>
hasMoreElements</H3>
<PRE>
public boolean <B>hasMoreElements</B>()</PRE>
<DL>
<DD>Tests if this enumeration contains more elements.
<P>
<DD><DL>
<DT><B>Returns:</B><DD><code>true</code> if and only if this enumeration object
contains at least one more element to provide;
<code>false</code> otherwise.</DL>
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nextElement</H3>
<PRE>
public java.lang.Object <B>nextElement</B>()</PRE>
<DL>
<DD>Returns the next element of this enumeration if this enumeration
object has at least one more element to provide.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the next element of this enumeration.
<DT><B>Throws:</B>
<DD><CODE>NoSuchElementException</CODE> - if no more elements exist.</DL>
</DD>
</DL>
<HR>
<A NAME="getOid()"><!-- --></A><H3>
getOid</H3>
<PRE>
public long <B>getOid</B>()</PRE>
<DL>
<DD>Get OID of the current object. This method should be used only after
<code>Enumeration.nextElement()</code> method and its result is OID of the object returned
by <code>nextElement()</code>.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.util.NoSuchElementException</CODE> - if there is no current element</DL>
</DD>
</DL>
<HR>
<A NAME="update()"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>()</PRE>
<DL>
<DD>Update current object. This method should be invoked after <code>Enumeration.nextElement()</code>
and store updated object, returned by <code>nextElement()</code>.
This method is not supported for prefetched cursor (which is returned for remote database or
when AUTOCOMMIT flag is set in select). In this case you should use Database.update method
specifying OID of updated object. This OID can be obtained using Cursor.getOid() method.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE>java.util.NoSuchElementException</CODE> - if there is no current element</DL>
</DD>
</DL>
<HR>
<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD>Get number of selected records
<P>
<DD><DL>
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