Filter

java.lang.Object
- org.rocksdb.AbstractNativeReference
- - org.rocksdb.AbstractImmutableNativeReference
  - - org.rocksdb.RocksObject
    - - org.rocksdb.Filter

All Implemented Interfaces:

java.lang.AutoCloseable

Direct Known Subclasses:

BloomFilter
```
public abstract class Filter
extends RocksObject
```
Filters are stored in rocksdb and are consulted automatically by rocksdb to decide whether or not to read some 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.

Field Summary
- Fields inherited from class org.rocksdb.RocksObject
  nativeHandle_
- Fields inherited from class org.rocksdb.AbstractImmutableNativeReference
  owningHandle_

Constructor Summary

Constructors
Modifier Constructor Description

protected Filter(long nativeHandle)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`disposeInternal()`	Deletes underlying C++ filter pointer.
`protected void`	`disposeInternal(long handle)`

Methods inherited from class org.rocksdb.RocksObject
getNativeHandle

Methods inherited from class org.rocksdb.AbstractImmutableNativeReference
close, disOwnNativeHandle, isOwningHandle

Methods inherited from class org.rocksdb.AbstractNativeReference
dispose, finalize

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Filter
```
protected Filter(long nativeHandle)
```
- Method Detail
  - disposeInternal
```
protected void disposeInternal()
```
    Deletes underlying C++ filter pointer. Note that this function should be called only after all RocksDB instances referencing the filter are closed. Otherwise an undefined behavior will occur.
    
    Overrides:
    
    disposeInternal in class RocksObject
  - disposeInternal
```
protected final void disposeInternal(long handle)
```
    Specified by:
    
    disposeInternal in class RocksObject