====== Module ======

Modules are base nodes used in XL models. They extends [[https://javadoc.grogra.de/graph/de/grogra/graph/impl/Node.html|Node]] by default, but can extend another object if specified. To be used in a project modules are classes defined with: 
  - A public constructor with all its fields as variables
  - Fields for each of the module [[:01_user_documentation:06_graph:02_node:01_attribute|attributes]]
  - Accessor methods for these fields
  - A [[:01_user_documentation:07_rgg_xl:02_xl:03_query:01_predicate:01_node:02_parametrized|parametrized pattern]] with all of its attributes as variable

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