$FieldgroupOccurrence: Difference between revisions
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<li>In a large record, $FIELDGROUPOCCURRENCE is expensive. It intentionally scans from the start of the record, in case there were additions or deletions of the fieldgroup. | <li>In a large record, $FIELDGROUPOCCURRENCE is expensive. It intentionally scans from the start of the record, in case there were additions or deletions of the fieldgroup. | ||
<p> | <p> | ||
For example, say that a record being processed in an <var>FEO FIELDGROUP</var> loop has thousands of occurrences of a fieldgroup named <code>CORE</code>. In this case, invoking <var>$FIELDGROUPOCCURRENCE</var> for each iteration of the loop will be prohibitively expensive, and you can save significant processing resources if you substitute a simple <code>OCCURRENCE IN | For example, say that a record being processed in an <var>FEO FIELDGROUP</var> loop has thousands of occurrences of a fieldgroup named <code>CORE</code>. In this case, invoking <var>$FIELDGROUPOCCURRENCE</var> for each iteration of the loop will be prohibitively expensive, and you can save significant processing resources if you label the FEO loop and substitute a simple <code>OCCURRENCE IN <i>label</i></code> statement for the <var>$FIELDGROUPOCCURRENCE</var> statement. </p> | ||
</ul> | </ul> | ||
[[Category:SOUL $functions]] | [[Category:SOUL $functions]] |
Revision as of 15:00, 13 December 2013
This function returns the current occurrence number of the field group. If the current field group has been deleted, $FIELDGROUPOCCURRENCE returns 0.
$FIELDGROUPOCCURRENCE is available as of Model 204 version 7.5.
Syntax
%num = $FIELDGROUPOCCURRENCE
Example
FOR EACH OCCURRENCE OF FIELDGROUP REDSOX PRINT $FIELDGROUPOCCURRENCE CALL CHANGINGPROC PRINT $FIELDGROUPOCCURRENCE END FOR
This example might print a different value before and after calling the CHANGINGPROC procedure, if that procedure inserted or deleted the field group occurrence before the current one.
Usage notes
- In a large record, $FIELDGROUPOCCURRENCE is expensive. It intentionally scans from the start of the record, in case there were additions or deletions of the fieldgroup.
For example, say that a record being processed in an FEO FIELDGROUP loop has thousands of occurrences of a fieldgroup named
CORE
. In this case, invoking $FIELDGROUPOCCURRENCE for each iteration of the loop will be prohibitively expensive, and you can save significant processing resources if you label the FEO loop and substitute a simpleOCCURRENCE IN label
statement for the $FIELDGROUPOCCURRENCE statement.