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# Euphoria API

Easy to use Java 8 DSL for the Beam Java SDK. Provides a high-level abstraction of Beam transformations, which is both easy to read and write. Can be used as a complement to existing Beam pipelines (convertible back and forth). You can have a glimpse of the API at [WordCount example]({{ site.baseurl
}}/documentation/sdks/java/euphoria/#wordcount-example).

- JIRA: [dsl-euphoria](https://issues.apache.org/jira/browse/BEAM-4366?jql=project%20%3D%20BEAM%20AND%20component%20%3D%20dsl-euphoria) / [BEAM-3900](https://issues.apache.org/jira/browse/BEAM-3900)
- Contact: [David Moravek](mailto:dmvk@apache.org)

## "Salted" join implementation

Implementation of a join, that can handle large scale join of highly skewed data sets. This implementation breaks
the large keys into multiple splits, using key distribution approximated by count min sketch data structure. 

## Pipeline sampling

In order to pick the right translation for the operator without user interference, we can leverage knowledge from
previous pipeline runs. We want to provide a convenient and portable way to gather this knowledge.

## Fluent API

Implementation of an easy to use Fluent API on top of Euphoria DSL.

## Side Outputs

An convenient API for multiple outputs.

## Table-stream joins

Introduce API for converting streams to tables (KStream <-> KTable approach) and various types of (windowed and unwindowed) joins on them.
