Package org.apache.flink.state.rocksdb.iterator

Class RocksStateKeysAndNamespaceIterator<K,N>

java.lang.Object

org.apache.flink.state.rocksdb.iterator.AbstractRocksStateKeysIterator<K>

org.apache.flink.state.rocksdb.iterator.RocksStateKeysAndNamespaceIterator<K,N>

Type Parameters:

K - the type of the iterated keys in RocksDB.

N - the type of the iterated namespaces in RocksDB.

All Implemented Interfaces:

AutoCloseable, Iterator<org.apache.flink.api.java.tuple.Tuple2<K,N>>

public class RocksStateKeysAndNamespaceIterator<K,N>
extends AbstractRocksStateKeysIterator<K>
implements Iterator<org.apache.flink.api.java.tuple.Tuple2<K,N>>

Adapter class to bridge between RocksIteratorWrapper and Iterator to iterate over the keys and namespaces. This class is not thread safe.

Field Summary

Fields inherited from class org.apache.flink.state.rocksdb.iterator.AbstractRocksStateKeysIterator

ambiguousKeyPossible, byteArrayDataInputView, iterator, keyGroupPrefixBytes, keySerializer, state

Constructor Summary

Constructors

Constructor	Description
RocksStateKeysAndNamespaceIterator(RocksIteratorWrapper iterator, String state, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, int keyGroupPrefixBytes, boolean ambiguousKeyPossible)

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()
org.apache.flink.api.java.tuple.Tuple2<K,N>	next()

Methods inherited from class org.apache.flink.state.rocksdb.iterator.AbstractRocksStateKeysIterator

close, deserializeKey

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Details

RocksStateKeysAndNamespaceIterator

public RocksStateKeysAndNamespaceIterator(@Nonnull
 RocksIteratorWrapper iterator,
 @Nonnull
 String state,
 @Nonnull
 org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
 @Nonnull
 org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
 int keyGroupPrefixBytes,
 boolean ambiguousKeyPossible)

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<K>

next

public org.apache.flink.api.java.tuple.Tuple2<K,N> next()

Specified by:

next in interface Iterator<K>