jbloom - jni-powered bloom filters for java written by John Muellerleile (@jrecursive)

• jbloom is a java native interface wrapper around a modified version of open bloom
• serialize / deserialize compatible with ebloom (erlang NIF) http://bitbucket.org/basho/ebloom/
• see src/jbloom/TestJBloom.java for an introduction to all the functions.
• i'll update the build process to something sane soon, until then -- sorry, see build_osx.sh or build_linux.sh, depending.
• the build process currently creates 64 bit binaries
• build should output something like this if successful:

cleaning... javac... javah... build native lib... run jbloom.test b1.contains('JBloom') = true b1.contains('giraffes') = false JBloom.effectiveFPP() = 1.4086502789328668E-27

JBloom.intersect(b1, b2) b1.contains('JBloom') = false b1.contains('lucky') = true b1.contains('lobster') = false

JBloom.union(b1, b3) b1.contains('lucky') = true b1.contains('lobster') = true b1.contains('JBloom') = true

JBloom.difference(b1, b3); b1.contains('giraffes') = false b1.contains('trees') = true b1.contains('sharks') = true b1.contains('lucky') = false

b1.serialize();

bytes.length = 12068 b4.contains('giraffes') = false b4.contains('trees') = true b4.contains('sharks') = true b4.contains('lucky') = false

performing 1m inserts... 1m inserts took 1371ms

10% fpp, serialized size is 601101 bytes and took 17ms

sanity check

0: true 1: true 2: true 3: true 4: true 5: true 6: true 7: true 8: true 9: true 2000000: false 2000001: false 2000002: false 2000003: false 2000004: true 2000005: false 2000006: false 2000007: false 2000008: false 2000009: false

• enjoy!