edmiRemoteGetMemberCount

 EdmiError edmiRemoteGetMemberCount(SdaiServerContext serverContextId,
                                    SdaiAggr          aggrId,
                                    SdaiVersion       version,
                                    SdaiInteger       *members,
                                    SdaiInvocationId  *edmiInvocationId);

Returns the number of elements in an aggregate in a remote EDMdatabase

Arguments

Type	Name	Comment
SdaiServerContext	serverContextId	Context identification, from edmiDefineServerContext
SdaiAggr	aggrId	A numeric aggregateID that uniquely identifies the aggregate of interest in the remote EDMdatabase
SdaiVersion	version	The version of the edmModel to apply this function call on. The <version> parameter is a numeric sequence number counting from one by increments of one for each new model version that is created. A zero model version number means the current version.
SdaiInteger	members	A variable that will receive the number of elements in the aggregate.
SdaiInvocationId	edmiInvocationId	Currently not used.

Return Value

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Options

Example

 /*
 SCHEMA Employees 
 ENTITY person; 
 Name : STRING; 
 Age : INTEGER; 
 END_ENTITY; 
 ENTITY Manning; 
 DivisionStaff : ARRAY [0:4] OF SET OF person; 
 END_ENTITY; 
 END_SCHEMA; 
 */
 int i;
 EdmiError rstat;
 SdaiInteger nHits, nEmployees, index;
 SdaiServerContext myContext;
 SdaiInstance manningId;
 SdaiAggr parentAggrId, childAggrId;
 SdaiQueryResult qexRes;
 SdaiAggrType aggrType;
 SdaiInteger lowerBound, upperBound, members;
 SdaiInstance elementId, domainId;
 SdaiBoolean isOptional, isUnique;
 SdaiPrimitiveType dataType;
  
 /* Create Server Context */
 rstat = edmiDefineServerContext("MyContext",
 "Johnny", "Supervisor", "cf37ftr", 
 "TCP", "9090", "MyServerHost", 
 NULL, NULL, NULL, NULL, NULL, &myContext); 
  
 /* Get the manningId instance. It is assumed that
 there is only one instance of type Manning */ 
 index = 0;
 nHits = 1;
 rstat = edmiRemoteSelectInstances(myContext, "AdminRepository",
 "Employees", "Manning", NULL, ONLY_INSTANCE_IDS, 
 NULL, NULL, NULL, &index, &nHits, &qexRes,  
 NULL, NULL, NULL, NULL); 
 manningId = qexRes->instanceIds[0];
 edmiFreeQueryResult(qexRes);
  
 /* Get the parent aggregate Id */
 rstat = edmiRemoteGetAttrsBN(myContext, manningId, 0, 1, NULL,
 "DivisionStaff", sdaiAGGR, &parentAggrId); 
  
 /* Get the parent aggregate descriptor */
 rstat = edmiRemoteGetAggrDescr(myContext, parentAggrId,
 &aggrType, &lowerBound, &upperBound,  
 &elementId, &domainId, &isOptional,  
 &isUnique, &dataType, &members, NULL); 
  
 /* Count the employees in all divisions */
 for (i=lowerBound; i<=upperBound; i++) {
 rstat = edmiRemoteGetAggrElement(myContext, parentAggrId,  
 0, i, sdaiAGGR, &childAggrId, NULL); 
 rstat = edmiRemoteGetMemberCount(myContext, 
 childAggrId, 0, &nEmployees, NULL); 
 printf("\nDivision %d: %d employees.", i, nEmployees); 
 }
 . . .

EDMsix

edmiRemoteGetMemberCount

Arguments

Return Value

Options

Example

See also

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