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SdaiAggr edmiGetScratchEntityExtent(SdaiEntity entityId);
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Returns the instances aggregate of the entity extent instance in the scratch model that contains all scratch instances of the specified <entityId> type. Scratch instances belongs to an EDMserver session, hence scratch instances and scratch entity extents are not persistent in an EDMdatabase.
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All EDMinterface read access operations that are applicable on SET aggregates are applicable to the returned aggregate.
EXPRESS:
ENTITY entity_extent;
definition : entity_definition;
instances : SET OF entity_instance;
END_ENTITY;
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Arguments
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| Type | Name | Comment | |
SdaiEntity | entityId | A numeric entityID that uniquely identifies an entity definition in a dictionary model in the EDMdatabase . | The entityID is returned by the sdaiGetEntity function. |
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Return Value
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Options
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Example
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SdaiAggr scratchExtentId; SdaiEntity entityId; SdaiErrorCode rstat; SdaiInstance id; SdaiInteger index, members; . . . scratchExtentId = edmiGetScratchEntityExtent(entityId); if (! scratchExtentId) { /* Error in operation */ printf("\nError: %s in edmiGetScratchEntityExtent\n", |
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edmiGetErrorText(sdaiErrorQuery())); |
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goto error; |
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} members = sdaiGetMemberCounts(scratchExtentId); |
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/* Print instanceID of all scratch instances of the specified type */ |
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for (index = 0; index < members; index++) { |
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edmiGetAggrElement(scratchExtentId, index, sdaiINSTANCE, &id); |
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rstat = sdaiErrorQuery(); |
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if (rstat) { |
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/* Error in operation */ |
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printf("\nError: %s in edmiGetAggrElement\n", |
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edmiGetErrorText(sdaiErrorQuery())); |
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goto error; |
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} printf ("\nInstanceID: %lu", id); |
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}
. . . |
See also
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