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Params.md

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Params

Params are defined as enums. A command has a defined set of params. So, a command can be defined as a pattern of enums.

This enum based approach allows MC to validate every command's param along with other useful functionality

Conflict resolution

  • If SRCSTMF and SRCFILE are present, SRCFILE is removed to give priority to stream files.
  • If SRCSTMF is present and TGTCCSID is missing, then MC adds it.
  • If SRCSTMF and EXPORT are present, EXPORT is removed.

Param validation

  • Every command, param, and value is validated during deserialization.
  • Invalid params for a given command are rejected, and an error is raised.
  • Param values are automatically formatted if necessary, e.g., yes to *YES, Source to *SOURCE, etc.

History

Every change is tracked individually in the history of each param. This gives you full context of what MC does.