AbstractCompactionFilter

java.lang.Object
- org.rocksdb.AbstractNativeReference
- - org.rocksdb.AbstractImmutableNativeReference
  - - org.rocksdb.RocksObject
    - - org.rocksdb.AbstractCompactionFilter<T>

All Implemented Interfaces:

java.lang.AutoCloseable

Direct Known Subclasses:

CassandraCompactionFilter, RemoveEmptyValueCompactionFilter
```
public abstract class AbstractCompactionFilter<T extends AbstractSlice<?>>
extends RocksObject
```
A CompactionFilter allows an application to modify/delete a key-value at the time of compaction. At present we just permit an overriding Java class to wrap a C++ implementation

- Nested Class Summary
  
  Nested Classes
  Modifier and Type Class Description
  
  static class AbstractCompactionFilter.Context
- 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 AbstractCompactionFilter(long nativeHandle)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  protected void disposeInternal(long handle)
  Deletes underlying C++ compaction pointer.
  - Methods inherited from class org.rocksdb.RocksObject
    disposeInternal, 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
  - AbstractCompactionFilter
```
protected AbstractCompactionFilter(long nativeHandle)
```
- Method Detail
  - disposeInternal
```
protected final void disposeInternal(long handle)
```
    Deletes underlying C++ compaction pointer. Note that this function should be called only after all RocksDB instances referencing the compaction filter are closed. Otherwise an undefined behavior will occur.
    
    Specified by:
    
    disposeInternal in class RocksObject