Package org.apache.hadoop.ozone.om.snapshot

Class RocksDbPersistentMap<K,V>

java.lang.Object

org.apache.hadoop.ozone.om.snapshot.RocksDbPersistentMap<K,V>

All Implemented Interfaces:

PersistentMap<K,V>

public class RocksDbPersistentMap<K,V>
extends Object
implements PersistentMap<K,V>

Persistent map backed by RocksDB.

Constructor Summary

Constructors

Constructor	Description
RocksDbPersistentMap(org.apache.hadoop.hdds.utils.db.managed.ManagedRocksDB db, org.rocksdb.ColumnFamilyHandle columnFamilyHandle, org.apache.hadoop.hdds.utils.db.CodecRegistry codecRegistry, Class<K> keyType, Class<V> valueType)

Method Summary

Modifier and Type	Method	Description
V	get(K key)
org.apache.hadoop.ozone.util.ClosableIterator<Map.Entry<K,V>>	iterator(Optional<K> lowerBound, Optional<K> upperBound)
void	put(K key, V value)
void	remove(K key)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.ozone.om.snapshot.PersistentMap

iterator

Constructor Details

RocksDbPersistentMap

public RocksDbPersistentMap(@Nonnull
 org.apache.hadoop.hdds.utils.db.managed.ManagedRocksDB db,
 @Nonnull
 org.rocksdb.ColumnFamilyHandle columnFamilyHandle,
 @Nonnull
 org.apache.hadoop.hdds.utils.db.CodecRegistry codecRegistry,
 @Nonnull
 Class<K> keyType,
 @Nonnull
 Class<V> valueType)

Method Details

get

public V get(K key)

Specified by:

get in interface PersistentMap<K,V>

put

public void put(K key,
 V value)

Specified by:

put in interface PersistentMap<K,V>

remove

public void remove(K key)

Specified by:

remove in interface PersistentMap<K,V>

iterator

public org.apache.hadoop.ozone.util.ClosableIterator<Map.Entry<K,V>> iterator(Optional<K> lowerBound,
 Optional<K> upperBound)

Specified by:

iterator in interface PersistentMap<K,V>