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EdmiError edmiRemoteIsInstanceOf(SdaiServerContext serverContextId,
SdaiInstance instanceId,
SdaiEntity entityId,
SdaiBoolean *isInstanceOf,
SdaiInvocationId *edmiInvocationId);
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Determines whether an instance is an instance of exactly the specified instance type.
Arguments
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| Type | Name | Comment |
| SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext |
SdaiInstance | instanceId | A numeric instanceID that uniquely identifies the instance of interrest interest in the remote _EDMdatabase{_}. |
| SdaiEntity | entityId | The numeric entityID that uniquely identifies the entity definition instance in a dictionary model in the remote _EDMdatabase{_}.remote EDMdatabase |
| SdaiBoolean | isInstanceOf | A variable that will receive TRUE if the instance given in argument <instanceId> is of the instance type given in the argument <entityId>. Otherwise, FALSE will be returned. |
| SdaiInvocationId | edmiInvocationId | Currently not used. |
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Return Value
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Options
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| Option | Comment |
| Option name | Comment |
Example
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EdmiError rstat; SdaiServerContext myContext; SdaiQueryResult qexRes; SdaiInstance *pInst; SdaiInteger index = 0, nHits = 10000; SdaiBoolean isRevolvingDoor; SdaiModel modelId; SdaiEntity revolvingDoorEID; SdaiAttr openDirAID; /* Define Remote Server Context */ rstat = edmiDefineServerContext("MyRemoteServerContext", |
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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 the model Id */ |
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rstat = edmiRemoteGetModelBN(myContext, "DataRepository", |
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"GeneralHospital", &modelId, NULL); |
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/* Get Revolving Door entity Id */ |
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rstat = edmiRemoteGetEntity(myContext, modelId, |
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"REVOLVING_DOOR", &revolvingDoorEID, NULL); |
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/* Get Open Direction attribute Id */ |
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rstat = edmiRemoteGetAttrDefinitionBN(myContext, "GeneralHospital", |
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"DOOR", "OPEN_DIRECTION", &openDirAID, NULL); |
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/* Select all doors on first floor */ |
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rstat = edmiRemoteSelectInstances(myContext, |
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"DataRepository", "GeneralHospital", |
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"DOOR", "FLOOR = 1", SUBTYPES | ONLY_INSTANCE_IDS, |
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NULL, NULL, NULL, &index, &nHits, &qexRes, |
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NULL, NULL, NULL, NULL); |
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/* All doors shall open outwards, |
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unless already specified otherwise. |
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Leave revolving doors unchanged */ |
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pInst = qexRes->instanceIds; |
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while (pInst) { |
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rstat = edmiRemoteIsInstanceOf(myContext, *pInst, |
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revolvingDoorEID, &isRevolvingDoor, NULL); |
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if (! isRevolvingDoor) { |
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SdaiBoolean *_valSet; |
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rstat = edmiRemoteTestAttrs(myContext, *pInst, 0, 1, |
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&openDirAID, &_valSet, NULL); |
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if (! _valSet[0]) { |
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rstat = edmiRemotePutAttrsBN(myContext, *pInst, 1, NULL, |
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&openDirAID, sdaiENUMERATION, "OPENDIR_OUTWARDS"); |
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}
}
}
. . . |
See also
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