edmiRemoteIsSubtypeOfBN

EdmiError edmiRemoteIsSubtypeOfBN(SdaiServerContext serverContextId,
                                    SdaiString        schemaName,
                                    SdaiString        subtypeEntityName,
                                    SdaiString        supertypeEntityName, 
                                    SdaiBoolean       *isSubtypeOf,
                                    SdaiInvocationId  *edmiInvocationId);

Determines whether a specified instance type is a subtype of another specified instance type. This operation will return sdaiTRUE if the instance type specified by the <subtypeEntity> argument is the same or a subtype of the instance type specified by the <supertypeEntity> argument, else sdaiFALSE will be returned.

Arguments

1	Type	Name	Comment
2	SdaiServerContext	serverContextId	Context identification, from edmiDefineServerContext
3	SdaiString	schemaName	Specifies the name of the Express Schema in which the two instance types are defined. Schema names are case insensitive
4	SdaiString	subtypeEntityName	^{The name of the assumed entity subtype.}
5	SdaiString	supertypeEntityName	^{The name of the assumed entity supertype.}
6	SdaiBoolean	isSubtypeOf	A variable that will receive sdaiTRUE if the entity <subtypeEntityId> is a subtype of the entity <supertypeEntityId>.
7	SdaiInvocationId	edmiInvocationId	Currently not used.

Return Value

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Options

Example

 /*
 SCHEMA Relations 
 ENTITY Person; 
 PID : INTEGER; 
 Name : STRING; 
 END_ENTITY; 
  
 ENTITY Man SUBTYPE OF Person; 
 . . . 
 HasBeard : BOOLEAN; 
 . . . 
 END_ENTITY; 
  
 ENTITY Woman SUBTYPE OF Person; 
 . . . 
 HasGivenBirth : BOOLEAN; 
 . . . 
 END_ENTITY; 
 END_SCHEMA; 
 */
 EdmiError rstat;
 SdaiInteger nWrn, nErr;
 SdaiServerContext myContext;
 SdaiBoolean isSubType;
  
 /* Define Remote Server Context */
 rstat = edmiDefineServerContext("MyRemoteServerContext",
 "Johnny", "Supervisor", "cf37ftr", 
 "TCP", "9090", "MyServerHost", 
 NULL, NULL, NULL, NULL, NULL, &myContext); 
  
 /* Compile the schema */
 rstat = edmiRemoteDefineSchema(myContext, EXPRESS_SCHEMA_TYPE,
 "c:/data/Relations.exp", "c:/tmp/Relations.dia",  
 "Relations", 0, &nWrn, &nErr, NULL); 
  
 /* Is man subtype of person? */
 rstat = edmiRemoteIsSubtypeOfBN(myContext, "Relations",  
 "Man", "Person", &isSubType, NULL); 
  
 printf("\nMan is%s subtype of person",
 isSubType ? "" : "n't"); 
 . . .

EDMsix

edmiRemoteIsSubtypeOfBN

Arguments

Return Value

Options

Example

See also

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