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EdmiError edmiRemoteDeleteInstanceReferences(SdaiServerContext serverContextId,
InstanceId instanceId,
SdaiInvocationId *edmiInvocationId);
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Deletes all external references to a given instance
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. Normally an instance cannot be deleted as long as there are other instances referring to it. This default behavior can be overruled by changing the system configuration settings.
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Arguments
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| Type | Name | Comment |
| SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext |
| InstanceId | instanceId | A numeric instanceID that uniquely identifies the instance in the remote _remote EDMdatabase_ for which to delete all external references. |
| SdaiInvocationId | edmiInvocationId | Currently not used. |
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Return Value
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Options
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Example
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EdmiError rstat; SdaiServerContext myContext; SdaiInteger index, nHits; SdaiQueryResult qexRes; SdaiInstance personId; /* Create Server Context */ rstat = edmiDefineServerContext("MyContext", |
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"Johnny", "Supervisor", "cf37ftr", |
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"TCP", "9090", "MyServerHost", |
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NULL, NULL, NULL, NULL, NULL, &myContext); |
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/* Get a persons instance Id from a unique |
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primary key attribute 'PID' */ |
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nHits = 1; |
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index = 0; |
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rstat = edmiRemoteSelectInstances(myContext, |
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"DataRepository", "SocialRelations", |
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"Person", "PID = '16126353127'", |
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(ONLY_INSTANCE_IDS | SUBTYPES), |
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NULL, NULL, NULL, |
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&index, &nHits, &qexRes, |
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NULL, NULL, NULL, NULL); |
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if (!nHits) { |
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printf("\nRequested pid not found."); |
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goto err; |
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} personId = qexRes->instanceIds[0]; |
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/* Delete all references to personId */ |
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rstat = edmiRemoteDeleteInstanceReferences(myContext, personId, NULL); |
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/* Delete the instance it self */ |
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rstat = edmiRemoteDeleteInstance(myContext, personId, 0, NULL); |
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. . . |
See also
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