facebook/rocksdb — pull request #290 by vladb38 (2014-09-16 22:01:10+00:00)
Title: Added merge operators to RocksJava

Added support for the merge operation to RocksJava.
You can specify a merge function to be used on the current database.
The merge function can either be one of the functions defined in
utilities/merge_operators.h, which can be specified through its
corresponding name, or a user-created function that needs to be
encapsulated in a JNI object in order to be used. Examples are
provided for both use cases.

Signed-off-by: Vlad Balan