org.apache.flink.contrib.streaming.state.iterator

Class RocksTransformingIteratorWrapper

java.lang.Object

org.apache.flink.contrib.streaming.state.RocksIteratorWrapper

org.apache.flink.contrib.streaming.state.iterator.RocksTransformingIteratorWrapper

All Implemented Interfaces:

Closeable, AutoCloseable, org.rocksdb.RocksIteratorInterface

public class RocksTransformingIteratorWrapper
extends RocksIteratorWrapper

Wrapper around RocksIterator that applies a given StateSnapshotTransformer to the elements during the iteration.

Constructor Summary

Constructors

Constructor and Description
RocksTransformingIteratorWrapper(org.rocksdb.RocksIterator iterator, org.apache.flink.runtime.state.StateSnapshotTransformer<byte[]> stateSnapshotTransformer)

Method Summary

Modifier and Type	Method and Description
void	next()
void	prev()
void	seekToFirst()
void	seekToLast()
byte[]	value()

Methods inherited from class org.apache.flink.contrib.streaming.state.RocksIteratorWrapper

close, isValid, key, seek, status

Methods inherited from class java.lang.Object

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

Constructor Detail

RocksTransformingIteratorWrapper

public RocksTransformingIteratorWrapper(@Nonnull
                                        org.rocksdb.RocksIterator iterator,
                                        @Nonnull
                                        org.apache.flink.runtime.state.StateSnapshotTransformer<byte[]> stateSnapshotTransformer)

Method Detail

seekToFirst

public void seekToFirst()

Specified by:

seekToFirst in interface org.rocksdb.RocksIteratorInterface

Overrides:

seekToFirst in class RocksIteratorWrapper

seekToLast

public void seekToLast()

Specified by:

seekToLast in interface org.rocksdb.RocksIteratorInterface

Overrides:

seekToLast in class RocksIteratorWrapper

next

public void next()

Specified by:

next in interface org.rocksdb.RocksIteratorInterface

Overrides:

next in class RocksIteratorWrapper

prev

public void prev()

Specified by:

prev in interface org.rocksdb.RocksIteratorInterface

Overrides:

prev in class RocksIteratorWrapper

value

public byte[] value()

Overrides:

value in class RocksIteratorWrapper