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The xpxGetEntityExtent function returns the aggregateId of the specified entity_extent aggregate. The actual instance type is defined by the modelId and entityId arguments. The aggregateId of the actual entity_extent is returned in the extentId argument. An entity_extent aggregate is a SET that contains all instances of the same type in a model. The number of entity_extents in a model is equal to the number of possible instance types in the model.

Arguments

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Return Value

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Example

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<Missing Example>  FUNCTION getEntityExtent(modelId,entityId : GENERIC) : GENERIC;
    LOCAL
      extentId : GENERIC;
      members  : INTEGER;
    END_LOCAL;
      ON_ERROR_DO;
      xpxPrintf('\nError.');
      xpxThrow;
    END_ON_ERROR_DO;
    
    xpxGetEntityExtent(modelId,entityId,extentId); 
    members := xpfGetMemberCount(extentId);
    xpxPrintf('\n%d Members of type %s in model.',members,entityId.name);
    
    RETURN(extentId);
  END_FUNCTION;

See also

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