edmiDeleteMethodSignature

EdmiError edmiDeleteMethodSignature(SdaiInstance methodId);

Deletes any additional information / documentation of a method from the EDMdatabase. A method signature is an instance of the EDM_METHOD entity in the ExpressDataManager model. A method is either an Express-X Mapping Schema or a Query Function. The method signature contains information about the required input parameters for each method. It may also contain a more general and descriptive text for documentation purposes. Query functions already have their parameters defined in the qurey function signature. Hence, they implicitely get a method signature definition in the ExpressDataManager model and they may therefore not be deleted. Therefore this method is only applicable on Express-X mapping schemas.

Arguments

Type	Name	Comment
SdaiInstance	methodId	The instance Id of the method to be deleted. This Id is an instance of the EDM_METHOD entity in the ExpressDataManager model.

Return Value

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Options

Example

EdmiError rstat;
 SdaiInteger nErr, nWrn;
 SdaiInstance xpxMethodId;
 SdaiString parNamesXpx[4] = {"Name", "Sex", "Weight", NULL};
 SdaiPrimitiveType parTypesXpx[3] = {sdaiSTRING, sdaiINTEGER, sdaiREAL};
  
 /* Define Schemas */ 
 rstat = edmiDefineSchema("c:/data/person.exp",
 "c:/temp/person.dia",
 "Person", 0, &nWrn, &nErr);
 rstat = edmiDefineSchemaMap("c:/data/person_maps.xpx",
 "c:/temp/person_maps.dia", 
 0, &nWrn, &nErr); 
  
 /* Define Method Signatures */
 rstat = edmiDefineMethodSignature( "XPX", "Insert a Person",
 "InsertPerson", "CLASS_INPUT", 
 parNamesXpx, parTypesXpx,  
 "Inserts a new person");  
  
 /* Get Signature Ids */
 rstat = edmiGetMethodSignatureId("XPX", "Insert a Person",
 "InsertPerson", &xpxMethodId);
  
 . . .
  
 /* Delete Signature */
 rstat = edmiDeleteMethodSignature(xpxMethodId);
  
 Express Schema
 - --------------------------------------------------------------
 - File : c:/data/person.exp
 - --------------------------------------------------------------
 SCHEMA person;
 ENTITY aperson;
 name : STRING;
 sex : STRING;
 weight : REAL;
 END_ENTITY;
 END_SCHEMA;
  
 Express-X Schema
 - --------------------------------------------------------------
 - File : c:/data/person_maps.xpx
 - --------------------------------------------------------------
 SCHEMA_MAP InsertPerson;
 GLOBAL
 DECLARE src INSTANCE OF SOURCE_SCHEMA person;
 DECLARE tar INSTANCE OF TARGET_SCHEMA person;
 END_GLOBAL;
  
 STATEMENTS;
 LOCAL
 npar : INTEGER;
 fail : BOOLEAN := FALSE;
 name : STRING;
 sex : INTEGER;
 weight : REAL;
 parType : INTEGER;
 END_LOCAL;
  
 IF (xpxGetNumberOfUserParameters() = 3) THEN
 xpxGetUserParameter(1, name);
 xpxGetUserParameter(2, sex);
 xpxGetUserParameter(3, weight);
 xpxCreateInstanceAndPutAttrsBN(XPXTARGETMODELID, "aperson", 3,
 xpxSTRING, name, xpxINTEGER, sex, xpxREAL, weight);
 }
 END_STATEMENTS;
 END_SCHEMA_MAP;

EDMsix

edmiDeleteMethodSignature

Arguments

Return Value

Options

Example

See also

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