Generated classes should implement Comparable
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Key: THRIFT-144
URL: https://issues.apache.org/jira/browse/THRIFT-144
Project: Thrift
Issue Type: New Feature
Components: Compiler (Java)
Reporter: Bryan Duxbury
Priority: Minor
We use our Thrift types in Hadoop map/reduce, sometimes as keys. As such, they
need to be compared to other keys to be sorted. Right now, the only way to
compare two Thrift objects is to serialize them and do byte comparison. It'd be
nice if we could compare two objects directly.
The implementation of such a compareTo would look a lot like the equals()
implementation already present, and delegate to the subtypes' compareTo methods
appropriately. The ordering of the field declarations in the .thrift file would
indicate the sort order between fields. In some situations this would make the
sorting somewhat arbitrary, but it would be stable, and if you really needed
the sorting to take into account fields in a specific order, you could order
your fields appropriately.
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