xpfCreateScratchAggr

FUNCTION xpfCreateScratchAggr (aggregateType     : INTEGER;
                               lowerBound        : INTEGER;
                               upperBound        : INTEGER;
                               valueType         : INTEGER;
                               domainId          : GENERIC)
                               scratchAggrId     : AGGREGATE OF GENERIC;
                

The xpfCreateScratchAggr function creates a scratch aggregate instance in the scratch model, i.e., a scratch aggregate will not be written to the persistent EDMdatabase. All EDMinterface access operations defined for persistent aggregates are applicable on scratch aggregates. The scratch model is a volatile model that is deleted when the session is closed or the database is closed. The scratch model can hold instances of any instance types defined by any dictionary models in the EDMdatabase. Each open session has it own unique scratch model, hence the data in a scratch model cannot be shared between concurrent users of an EDMdatabase. The scratch model will implicitly be created and open for write access when the session is opened. A scratch aggregate can be deleted by the xpxDeleteAggr operation. All scratch aggregates are deleted when the open session is closed or when the database is closed.                              

Arguments

Return Value

Options

Example

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See also