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RCF_SEARCH_RANKING - BAdI: Weighting of Search Results Hits

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The Business Add-In (BAdI) HRRCF_SEARCH_RANKING is used to add together the hits of the hit lists from two searches, thus enabling a common weighting of the hits.

The BAdI provides the following methods for an implementation:

The system uses this method to group together the hits of the hit lists of two different searches into one hit list.

In the standard implementation HRRCF00_SEARCH_RANKING, this occurs depending on the operator used (and/or) between the search attributes. The system behavior with regard to the relationships between the search attributes results from the settings that are stored for the Ranking in the IMG activity Set Up Search Applications. For more information, see the documentation for the IMG activity in the Ranking section.

The system also takes into account the weighting of the hits.

Parameters	Type	Reference Type	Default Value	Description
P_HITLIST1	Importing	RCF_T_HITLIST_WITH_RANKV		First Hit List
P_HITLIST2	Importing	RCF_T_HITLIST_WITH_RANKV		Second Hit List
P_WEIGHT1	Importing	NUMC10	1	Weighting for Hits of First Hit List
P_WEIGHT2	Importing	NUMC10	1	Weighting for Hits of Second Hit List
P_INTERSECT	Importing	BOOLE_D		'X' = Intersection of Hit Lists; ' ' = Union of Hit Lists
P_MERGEDLIST	Exporting	RCF_T_HITLIST_WITH_RANKV		Hit List with Weighting as Result of Combining 2 Hit Lists

 

You use this method to calculate a weighting for hits that were determined using a database search. In addition to the search using Search and Classification (TREX), it is also possible to search using function modules. Hits found in this way do not have a weighting, however. Consequently, these hits would have a weighting of 0% when combined with the hit list from the TREX search.

In the standard implementation HRRCF00_SEARCH_RANKING, the method calculates a weighting for these hits according to the following equation: Weighting of hit = 100% divided by the number of selected search criteria.

 

Parameters	Type	Reference Type	Default Value	Description
P_HITLIST	Importing	RCF_T_HITLIST_WITH_RANKV		Hit List from Non-TREX Search
P_WEIGHT	Importing	NUMC10	1	Weighting
P_NUMBER_OF_CRITERIA	Importing	I		Number of Selected Search Criteria/Search Template Elements
P_HITLIST_WITH_RANKV	Exporting	RCF_T_HITLIST_WITH_RANKV		Hit List from Non-TREX Search with Weighting

 

The system uses this method to group together the hits from a search with mandatory criteria and the hits from a search without mandatory criteria.

In the standard implementation HRRCF00_SEARCH_RANKING, the result hit list comes from the hit list of the search with mandatory criteria, whereby the hits that also come from the search without mandatory criteria receive a new ranking value. This is calculated as follows:

The product of the ranking value of the hit from the search with mandatory criteria and the weighting for the first hit list is added to the product of the ranking value of the hit from the search without mandatory criteria and the weighting for the second hit list. This sum is divided by the sum of the weighting for the first hit list and the weighting for the second hit list.

 

Parameter	Type	Reference Type	Default Value	Description
P_HITLIST_MAND	Importing	RCF_T_HITLIST_WITH_RANKV		First Hit List from Search with Mandatory Criteria
P_HITLIST2	Importing	RCF_T_HITLIST_WITH_RANKV		Second Hit List from Search Without Mandatory Criteria
P_WEIGHT1	Importing	NUMC10	1	Weighting for First Hit List
P_WEIGHT2	Importing	NUMC10	1	Weighting for Second Hit List
P_MERGEDLIST	Exporting	RCF_T_HITLIST_WITH_RANKV		New Hit List as Result of Comparing Both Lists

 

 

In the standard system, the BAdI implementation HRRCF00_SEARCH_RANKING is activated. The default code is executed automatically.

 

Create your own implementation if necessary.

 

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