Mapplets
are
created in Mapplet Designer. It can be defined as a set of transformations (no target tables,source tables can be there) which can be reused in multiple mappings.A Mapplet Must
Have Output Transformation.
Transformation
logics are created using Mapplets and after that they are re used in multiple
mappings instead of re creating the same logic.
Other
properties of Mapplets can be listed as given below.
- Changes made on the mapplet will reflect on all the instances of that Mapplets.
- Mapplets can have as many transformations but not source or target tables.
- To receive source Data for Mapplets use Input Transformation
Components of a Mapplet
A mapplet has the
following components:
Mapplet input
You can pass data
into a mapplet using source definitions or Input transformations or both.When
you use an Input transformation, you connect it to the source pipeline in the
mapping.
Mapplet output
Each mapplet must
contain one or more Output transformations to pass data from the mapplet into
the mapping.
Mapplet ports
Mapplet ports display
only in the Mapping Designer. Mapplet ports consist of input ports from Input transformations
and output ports from Output transformations. If a mapplet uses source
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