()"><!-- --></A><H3>
isPrimary</H3>
<PRE>
public boolean <B>isPrimary</B>()</PRE>
<DL>
<DD>Is this grid unit the before-start grid unit of the cell?
<P>
<DD><DL>

<DT><B>Returns:</B><DD>true if this grid unit is the before-start grid unit of the cell</DL>
</DD>
</DL>
<HR>

<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
public boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Does this grid unit belong to an empty cell?
<P>
<DD><DL>

<DT><B>Returns:</B><DD>true if this grid unit belongs to an empty cell</DL>
