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EdmiError edmiRemoteGetEntityExtent(SdaiServerContext serverContextId,
SdaiModel modelId,
SdaiEntity entityId,
SdaiOptions options,
SdaiAggr *aggrId,
SdaiInteger *instances,
SdaiInteger *subtypeInstances,
SdaiInvocationId *edmiInvocationId);
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Returns a numeric instanceID that uniquely identifies the entity extent of a specified instance type in a specified EDM Model. EDM Models have individual entity extents for all their defined instance types. Optionally, the returned aggregate of instanceIds may include all subtypes of the specified instance type.
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Arguments
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| Type | Name | Comment |
| SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext |
SdaiModel | modelId | The numeric modelID that uniquely identifies the edmModel population in the remote _EDMdatabase{_}.remote EDMdatabase |
| SdaiEntity | entityId | The numeric entityID that uniquely identifies the instance type within the the remote _EDMdatabase{_}.remote EDMdatabase |
| SdaiOptions | options | See description of available options below. |
| SdaiAggr | aggrId | A variable that will receive an aggregateId that contains all instances of the given instance type, and optionally all instances of its subtypes. |
| SdaiInteger | instances | A variable that will receive the number of instances that was returned in the parameter <aggrId>. |
| SdaiInteger | subtypeInstances | A variable that will receive the total number of instances in the entire population of the EDM Model. This number includes all instance types. |
| SdaiInvocationId | edmiInvocationId | Currently not used. |
Options: Descriptions:
Return Value
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Options
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| Option | Comment |
SUBTYPES | Include all subtypes of the instance type specified by <entityId> in the returned aggregate of instanceIds. |
Returns:
A completion code of data type EdmiError is the returned function value. The completion code has the following values:
Completion code = 0 : Operation successfully performed.
Completion code != 0: Error in operation. Completion code is an _EDMinterface_ error code. Use edmiGetErrorText to get the error text corresponding to the error code.
Example:
int i, j;
EdmiError rstat;
SdaiServerContext myContext;
SdaiPrimitiveType type;
SdaiInteger nModInst, nMethod;
SdaiAggr methodAggr;
SdaiInstance *methodBuff;
SdaiModel modelId;
SdaiEntity entityId;
/* Define Remote Server Context */
rstat =
Example
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int i, j; EdmiError rstat; SdaiServerContext myContext; SdaiPrimitiveType type; SdaiInteger nModInst, nMethod; SdaiAggr methodAggr; SdaiInstance *methodBuff; SdaiModel modelId; SdaiEntity entityId; /* 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 Id of the ExpressDataManager model */ |
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rstat = edmiRemoteGetModelBN(myContext, "SystemRepository", |
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"ExpressDataManager", &modelId, NULL); |
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/* Get the Id of the EDM_METHOD entity */ |
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rstat = edmiRemoteGetEntity(myContext, modelId, |
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"EDM_METHOD", &entityId, NULL); |
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/* Get all methods from the |
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ExpressDataManager model */ |
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rstat = edmiRemoteGetEntityExtent(myContext, modelId, |
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entityId, 0, &methodAggr, &nInst, |
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&nModInst, NULL); |
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/* Print all methods */ |
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rstat = edmiRemoteReadAggrElements(myContext, methodAggr, |
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0, 0, nMethod, &nMethod, &type, NULL, |
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&methodBuff, NULL); |
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for (i=0;i<nMethod;i++) { |
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SdaiString _methodType; |
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SdaiString _methodName; |
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SdaiString _schemaName; |
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SdaiString _methodClass; |
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SdaiInteger _nArgs; |
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SdaiPrimitiveType _returnType; |
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SdaiString *_argNames; |
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SdaiPrimitiveType *_argTypes; |
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SdaiString _methodDesc; |
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rstat = edmiRemoteGetMethodSignature(myContext, methodBuff[i], |
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&_methodType, &_methodName, &_schemaName, |
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&_methodClass, &_nArgs, &_returnType, |
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&_argNames, &_argTypes, &_methodDesc, NULL); |
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printf("\n%d : Method %s\n%s", i, _methodName, _methodDesc); |
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edmiFree(_methodName); |
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edmiFree(_methodDesc); |
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edmiFree(_schemaName); |
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edmiFree(_methodClass); |
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for(j=0;j<_nArgs;j++) { |
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edmiFree(_argNames[i]); |
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}
}
. . . |
See also
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