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This commit is contained in:
Ankit Gupta 2014-04-22 09:01:57 -07:00
parent 2214fd8a15
commit 7a5106fbea
2 changed files with 14 additions and 5 deletions
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14
java/org/rocksdb/BloomFilter.java
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@ -5,12 +5,26 @@
package org.rocksdb;
/**
* This class creates a new filter policy that uses a bloom filter
* with approximately the specified number of bits per key.
* A good value for bitsPerKey is 10, which yields a filter
* with ~ 1% false positive rate.
*
* Default value of bits per key is 10.
*/
public class BloomFilter extends Filter {
private static final int DEFAULT_BITS_PER_KEY = 10;
private final int bitsPerKey_;
public BloomFilter() {
this(DEFAULT_BITS_PER_KEY);
}
public BloomFilter(int bitsPerKey) {
super();
bitsPerKey_ = bitsPerKey;
createNewFilter();
}

5
java/org/rocksdb/Filter.java
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@ -11,11 +11,6 @@ package org.rocksdb;
* information from disk. In many cases, a filter can cut down the
* number of disk seeks form a handful to a single disk seek per
* DB::Get() call.
*
* This class creates a new filter policy that uses a bloom filter
* with approximately the specified number of bits per key.
* A good value for bitsPerKey is 10, which yields a filter
* with ~ 1% false positive rate.
*/
public abstract class Filter {
protected long nativeHandle_ = 0;