August 15, 2023

Scenario 1: Buffering data – Docs for ESB 6.x

Scenario 1: Buffering data

This scenario describes an intentionally basic Job that bufferizes data in a
child job while a parent Job simply displays the bufferized data onto the
standard output console. For an example of how to use tBufferOutput to access output data directly on the Web
application server, see Scenario 2: Buffering output data on the webapp server.

  • Create two Jobs: a first Job
    (BufferFatherJob) runs the
    second Job and displays its content onto the Run console. The second Job
    (BufferChildJob) stores the
    defined data into a buffer memory.

  • On the first Job, drop the following components: tRunJob and tLogRow from the Palette to the design

  • On the second Job, drop the following components: tFileInputDelimited and
    tBufferOutput the
    same way.

Let’s set the parameters of the second Job first:

  • Select the tFileInputDelimited and on the Basic Settings tab of the
    Component view, set
    the access parameters to the input file.

  • In File Name, browse to the
    delimited file whose data are to be bufferized.

  • Define the Row and Field separators, as well as
    the Header.

  • Describe the Schema of the
    data to be passed on to the tBufferOutput component.

  • Select the tBufferOutput
    component and set the parameters on the Basic Settings tab of the
    Component view.

  • Generally the schema is propagated from the input component
    and automatically fed into the tBufferOutput schema. But you could also
    set part of the schema to be bufferized if you want

  • Now on the other Job (BufferFatherJob)
    Design, define the parameters of the tRunJob component.

  • Edit the Schema if relevant and select the column to be
    displayed. The schema can be identical to the bufferized
    schema or different.

  • You could also define context parameters to be used for this
    particular execution. To keep it simple, the default context
    with no particular setting is used for this use case.

Press F6 to execute the parent Job. The
tRunJob looks after executing the
child Job and returns the data onto the standard console:


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