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[Java] Add Java bindings for memtables and sst format.

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Summary:
Add Java bindings for memtables and sst format.  Specifically,
add two abstract Java classses --- MemTableConfig and SstFormatConfig.
Each MemTable / SST implementation should has its own config class
extends MemTableConfig / SstFormatConfig respectively and pass it
to Options via setMemTableConfig / setSstConfig.

Test Plan:
make rocksdbjava
make jdb_test
make jdb_bench
java/jdb_bench.sh \
  --benchmarks=fillseq,readrandom,readwhilewriting \
  --memtablerep=hash_skiplist \
  --use_plain_table=1 \
  --key_size=20 \
  --prefix_size=12 \
  --value_size=100 \
  --cache_size=17179869184 \
  --disable_wal=0 \
  --sync=0 \

Reviewers: haobo, ankgup87, sdong

Reviewed By: haobo

CC: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D17997
This commit is contained in:
Yueh-Hsuan Chiang
2014-04-21 15:40:46 -07:00
parent 8dc34364d2
commit ef8b8a8ef6
15 changed files with 757 additions and 49 deletions
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23
java/RocksDBSample.java
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@@ -48,6 +48,29 @@ public class RocksDBSample {
assert(options.blockSize() == 64 * SizeUnit.KB);
assert(options.maxBackgroundCompactions() == 10);
assert(options.memTableFactoryName().equals("SkipListFactory"));
options.setMemTableConfig(
new HashSkipListMemTableConfig()
.setHeight(4)
.setBranchingFactor(4)
.setBucketCount(2000000));
assert(options.memTableFactoryName().equals("HashSkipListRepFactory"));
options.setMemTableConfig(
new HashLinkedListMemTableConfig()
.setBucketCount(100000));
assert(options.memTableFactoryName().equals("HashLinkedListRepFactory"));
options.setMemTableConfig(
new VectorMemTableConfig().setReservedSize(10000));
assert(options.memTableFactoryName().equals("VectorRepFactory"));
options.setMemTableConfig(new SkipListMemTableConfig());
assert(options.memTableFactoryName().equals("SkipListFactory"));
options.setTableFormatConfig(new PlainTableConfig());
assert(options.tableFactoryName().equals("PlainTable"));
try {
db = RocksDB.open(options, db_path_not_found);
db.put("hello".getBytes(), "world".getBytes());