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DataFlex Examples

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(DataFlex) Generate Monotonic ULIDs

See more ULID/UUID Examples

Generate a sequence of monotonic ULIDs all using the same seed time. This code sample generates a series of ULIDs with continuously increasing values.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoSeedDt
    Boolean iSuccess
    Boolean iUtc
    String sUlid
    Variant vSbUlid
    Handle hoSbUlid
    Integer i
    String sTemp1

    Get Create (RefClass(cComCkDateTime)) To hoSeedDt
    If (Not(IsComObjectCreated(hoSeedDt))) Begin
        Send CreateComObject of hoSeedDt
    End

    // You can set the seed time to any desired value.
    // In this example, the seed time is set to the current system date/time.
    Get ComSetFromCurrentSystemTime Of hoSeedDt To iSuccess

    // Generate the 1st ULID in the series.
    // (i.e. the current UTC UNIX-time)
    Move True To iUtc
    Get ComUlidGenerate Of hoSeedDt iUtc To sUlid
    Showln sUlid

    // Store the ULID in a Chilkat StringBuilder to generate the series.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbUlid
    If (Not(IsComObjectCreated(hoSbUlid))) Begin
        Send CreateComObject of hoSbUlid
    End
    Get ComAppend Of hoSbUlid sUlid To iSuccess

    Move 0 To i
    While (i < 50)
        Get pvComObject of hoSbUlid to vSbUlid
        Get ComUlidIncrement Of hoSeedDt vSbUlid To iSuccess
        Get ComGetAsString Of hoSbUlid To sTemp1
        Showln sTemp1
        Move (i + 1) To i
    Loop

    // Sample output:

    // 01GRGH30H8DMQ4F9A0XCTZHPGM
    // 01GRGH30H8DMQ4F9A0XCTZHPGN
    // 01GRGH30H8DMQ4F9A0XCTZHPGP
    // 01GRGH30H8DMQ4F9A0XCTZHPGQ
    // 01GRGH30H8DMQ4F9A0XCTZHPGR
    // 01GRGH30H8DMQ4F9A0XCTZHPGS
    // 01GRGH30H8DMQ4F9A0XCTZHPGT
    // 01GRGH30H8DMQ4F9A0XCTZHPGV
    // 01GRGH30H8DMQ4F9A0XCTZHPGW
    // 01GRGH30H8DMQ4F9A0XCTZHPGX
    // 01GRGH30H8DMQ4F9A0XCTZHPGY
    // 01GRGH30H8DMQ4F9A0XCTZHPGZ
    // 01GRGH30H8DMQ4F9A0XCTZHPH0
    // 01GRGH30H8DMQ4F9A0XCTZHPH1
    // 01GRGH30H8DMQ4F9A0XCTZHPH2
    // 01GRGH30H8DMQ4F9A0XCTZHPH3
    // 01GRGH30H8DMQ4F9A0XCTZHPH4
    // 01GRGH30H8DMQ4F9A0XCTZHPH5
    // 01GRGH30H8DMQ4F9A0XCTZHPH6
    // 01GRGH30H8DMQ4F9A0XCTZHPH7
    // 01GRGH30H8DMQ4F9A0XCTZHPH8
    // 01GRGH30H8DMQ4F9A0XCTZHPH9
    // 01GRGH30H8DMQ4F9A0XCTZHPHA
    // 01GRGH30H8DMQ4F9A0XCTZHPHB
    // 01GRGH30H8DMQ4F9A0XCTZHPHC
    // 01GRGH30H8DMQ4F9A0XCTZHPHD
    // 01GRGH30H8DMQ4F9A0XCTZHPHE
    // 01GRGH30H8DMQ4F9A0XCTZHPHF
    // 01GRGH30H8DMQ4F9A0XCTZHPHG
    // 01GRGH30H8DMQ4F9A0XCTZHPHH
    // 01GRGH30H8DMQ4F9A0XCTZHPHJ
    // 01GRGH30H8DMQ4F9A0XCTZHPHK
    // 01GRGH30H8DMQ4F9A0XCTZHPHM
    // 01GRGH30H8DMQ4F9A0XCTZHPHN
    // 01GRGH30H8DMQ4F9A0XCTZHPHP
    // 01GRGH30H8DMQ4F9A0XCTZHPHQ
    // 01GRGH30H8DMQ4F9A0XCTZHPHR
    // 01GRGH30H8DMQ4F9A0XCTZHPHS
    // 01GRGH30H8DMQ4F9A0XCTZHPHT
    // 01GRGH30H8DMQ4F9A0XCTZHPHV
    // 01GRGH30H8DMQ4F9A0XCTZHPHW
    // 01GRGH30H8DMQ4F9A0XCTZHPHX
    // 01GRGH30H8DMQ4F9A0XCTZHPHY
    // 01GRGH30H8DMQ4F9A0XCTZHPHZ
    // 01GRGH30H8DMQ4F9A0XCTZHPJ0
    // 01GRGH30H8DMQ4F9A0XCTZHPJ1
    // 01GRGH30H8DMQ4F9A0XCTZHPJ2
    // 01GRGH30H8DMQ4F9A0XCTZHPJ3
    // 01GRGH30H8DMQ4F9A0XCTZHPJ4
    // 01GRGH30H8DMQ4F9A0XCTZHPJ5
    // 01GRGH30H8DMQ4F9A0XCTZHPJ6


End_Procedure

 

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