edmiRemoteDeepDeleteInstance
EdmiError edmiRemoteDeepDeleteInstance(SdaiServerContext serverContextId, SdaiAppInstance instanceId, SdaiInvocationId *edmiInvocationId);
Deletes an application instance from the remote EDMdatabase. Any instance within the same edmModel that is referred to from this instance, and not from any other instance, will be deleted as well (deep delete). This operation is only applicable to application instances. Any external references to the instance must be deleted before the instance it self may be deleted. The function edmiRemoteDeleteInstanceReferences may be used to delete all external references, or the references may be deleted one by one by the appropriate operations.
Arguments
Type | Name | Comment |
SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext |
SdaiAppInstance | instanceId | The numeric instanceID that uniquely identifies the application instance to be deleted from the remote database. |
SdaiInvocationId | edmiInvocationId | Currently not used. |
Return Value
Options
Example
EdmiError rstat; SdaiServerContext myContext; SdaiInteger index, nHits; SdaiQueryResult qexRes; SdaiInstance personId; /* Create Server Context */ rstat = edmiDefineServerContext("MyContext", "Johnny", "Supervisor", "cf37ftr", "TCP", "9090", "MyServerHost", NULL, NULL, NULL, NULL, NULL, &myContext); /* Get a persons instance Id from a unique primary key attribute 'PID' */ nHits = 1; index = 0; rstat = edmiRemoteSelectInstances(myContext, "DataRepository", "SocialRelations", "Person", "PID = '16126353127'", (ONLY_INSTANCE_IDS | SUBTYPES), NULL, NULL, NULL, &index, &nHits, &qexRes, NULL, NULL, NULL, NULL); if (!nHits) { printf("\nRequested pid not found."); goto err; } personId = qexRes->instanceIds[0]; /* Delete all references to personId */ rstat = edmiRemoteDeleteInstanceReferences(myContext, personId, NULL); /* Delete the entire instance graph (deep) */ rstat = edmiRemoteDeepDeleteInstance(myContext, personId, NULL); . . .
See also
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