Setting record count warnings

Setting record count warnings makes the WUI issue a warning if a request to open a view will result in a larger than expected amount of data. This provides an opportunity to alter the filters on the view and confirm or cancel the request before the request is executed.

This feature does not apply to all WUI views. It applies to the views associated with the following resources:

CMDT	FEPINODE	PROGRAM
CONNECT	FEPIPOOL	REMFILE
DB2CONN	FEPITRGT	REMTDQ
DB2ENTRY	INDTDQ	REMTRAN
DB2TRN	INTRATDQ	RQMODEL
DOCTEMP	JOURNAL	SMFJRNL
DSKJRNL	JRNLNAME	SYSDUMP
DSNAME	LOCFILE	TAPEJRNL
ENQMODEL	LOCTRAN	TCPIPS
EXITGLUE	MODENAME	TERMNL
EXITTRUE	PARTNER	TRAN
EXTRATDQ	PROCTYP	TRANDUMP
FEPICONN	PROFILE	TSMODEL

There are two ways of specifying the number of records required to trigger the warning mechanism:

Set a value for the DEFAULTWARNCNT WUI server initialization parameter during WUI server configuration. DEFAULTWARNCNT can take an integer value in the range of 0 to 99999999. This is an optional parameter.
Set a warning record count value in a user group profile. This allows WUI administrators to set a value for all the members of a WUI user group.

In both cases the default value is 0 meaning that no warnings are issued.

A value set in a user group takes precedence over a value set in DEFAULTWARNCNT. Before a warning is issued the WUI checks to determine whether or not the signed on user is associated with a user group (this can occur only if the WUI is running with security switched on). If so, the WUI uses any value for the warning count specified in that user group. If the user does not belong to a user group, or no maximum value is set, the WUI uses any value set in the DEFAULTWARNCNT parameter.

If the value for the warning count is greater than 0, the WUI checks the size of the potential set of records to be returned. This gives an indication of the maximum number of records that could be returned. It is not always accurate as any filters other than that associated with the first part of the primary key field are ignored. If this potential value is greater than the value of the warning count, a warning screen is displayed. If the returned value is less than or equal to the warning count value, the WUI view is displayed in the usual way.

Clicking Refresh drives a new request. This allows you to alter the primary key field, which is included in the Warning count screen, to test a new filter value in order to produce a smaller set of results. Any other filters remain in place from the original request. If the set of results returned is not below the warning count limit, the warning count screen is redisplayed with the original warning count message. If the size is below the warning count limit, the warning count screen is redisplayed.

Clicking OK at the bottom of the screen performs the current request regardless of the number of results to be returned.

Clicking Cancel is the equivalent of pressing the back link on the browser; the previous screen is redisplayed.

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