20 lines
840 B
Markdown
20 lines
840 B
Markdown
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# `nextflow.extension`
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The `nextflow.extension` package implements the channel operators and other extension methods.
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## Class Diagram
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```{mermaid} diagrams/nextflow.extension.mmd
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```
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```{note}
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Some classes may be excluded from the above diagram for brevity.
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```
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## Notes
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Operators are implemented using the [GPars](http://gpars.org/1.2.1/guide/guide/dataflow.html) dataflow library. In general, an operator consumes one or more `DataflowReadChannel`s and produces one or more `DataflowWriteChannel`s. See {ref}`operator-page` for details about each operator.
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Other notable classes include `Bolts` and `FilesEx`, which implement various extension methods used throughout the Nextflow codebase. If you see a method that doesn't appear to be implemented by the calling object, it may be implemented in one of these extension classes.
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