edmiGetScratchEntityExtent

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Last updated: Dec 14, 2017
1 min read
SdaiAggr edmiGetScratchEntityExtent(SdaiEntity entityId);

Returns the instances aggregate of the entity extent instance in the scratch model that contains all scratch instances of the specified <entityId> type. Scratch instances belongs to an EDMserver session, hence scratch instances and scratch entity extents are not persistent in an EDMdatabase.All EDMinterface read access operations that are applicable on SET aggregates are applicable to the returned aggregate.
EXPRESS:
ENTITY entity_extent; 
    definition : entity_definition; 
   instances : SET OF entity_instance;
END_ENTITY;

Arguments

TypeNameComment
SdaiEntity
entityIdA numeric entityID that uniquely identifies an entity definition in a dictionary model in the EDMdatabase . The entityID is returned by the sdaiGetEntity function.

Return Value

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Options

 

Example

 

 SdaiAggr scratchExtentId;
 SdaiEntity entityId;
 SdaiErrorCode rstat;
 SdaiInstance id;
 SdaiInteger index, members;
 . . .
 scratchExtentId = edmiGetScratchEntityExtent(entityId);
 if (! scratchExtentId) {
 /* Error in operation */ 
 printf("\nError: %s in edmiGetScratchEntityExtent\n", 
 edmiGetErrorText(sdaiErrorQuery())); 
 goto error; 
 }
 members = sdaiGetMemberCounts(scratchExtentId);
 /* Print instanceID of all scratch instances of the specified type */
 for (index = 0; index < members; index++) {
 edmiGetAggrElement(scratchExtentId, index, sdaiINSTANCE, &id); 
 rstat = sdaiErrorQuery(); 
 if (rstat) { 
 /* Error in operation */ 
 printf("\nError: %s in edmiGetAggrElement\n", 
 edmiGetErrorText(sdaiErrorQuery())); 
 goto error; 
 } 
 printf ("\nInstanceID: %lu", id); 
 }
 . . .

 

See also

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