Chapter 42. Transformations
Each transformation graph consists of components. All components process data during the graph run. Some of all components process data using so called transformation.
Transformation is a piece of code that defines how data on the input is transformed into that on the output on its way through the component.
![[Note]](figures/note.png) | Note |
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Remember that transformation graph and transformation itself are different notions. Transformation graph consists of components, edges, metadata, connections, lookup tables, sequences, parameters, and notes whereas transformation is defined as an attribute of a component and is used by the component. Unlike transformation graph, transformation is a piece of code that is executed during graph execution. |
Any transformation can be defined by defining one of the following three attributes:
Each transformation is defined using one of the three attributes of a component:
Transform, Denormalize, Normalize, etc.
Transform URL, Denormalize URL, Normalize URL, etc.
When any of these attributes is defined, you can also specify its encoding: Transform source charset, Denormalize source charset, Normalize source charset, etc.
Transform class, Denormalize class, Normalize class, etc.
In some transforming components, transformation is required, in others, it is only optional.
For a table overview of components that allow or require a transformation see Transformations Overview.
Each transformation can always be written in Java, mostly transformation can also be written in CloudConnect Transformation Language.
CloudConnect Transformation Language (CTL) exists in two versions: CTL1 and CTL2.
See Part XI, CTL - CloudConnect Transformation Language for details about CloudConnect Transformation Language and each of its versions.
See Defining Transformations for more detailed information about transformations.