org.apache.pulsar.functions.instance.state

Class BKStateStoreImpl

java.lang.Object

org.apache.pulsar.functions.instance.state.BKStateStoreImpl

All Implemented Interfaces:

AutoCloseable, ByteBufferStateStore, CounterStateStore, StateStore, DefaultStateStore

public class BKStateStoreImpl
extends Object
implements DefaultStateStore

This class accumulates the state updates from one function.

currently it exposes incr operations. but we can expose other key/values operations if needed.

Constructor Summary

Constructors

Constructor and Description
BKStateStoreImpl(String tenant, String namespace, String name, org.apache.bookkeeper.api.kv.Table<io.netty.buffer.ByteBuf,io.netty.buffer.ByteBuf> table)

Method Summary

Modifier and Type	Method and Description
void	close()
void	delete(String key)
CompletableFuture<Void>	deleteAsync(String key)
String	fqsn()
ByteBuffer	get(String key)
CompletableFuture<ByteBuffer>	getAsync(String key)
long	getCounter(String key)
CompletableFuture<Long>	getCounterAsync(String key)
void	incrCounter(String key, long amount)
CompletableFuture<Void>	incrCounterAsync(String key, long amount)
void	init(StateStoreContext ctx)
String	name()
String	namespace()
void	put(String key, ByteBuffer value)
CompletableFuture<Void>	putAsync(String key, ByteBuffer value)
String	tenant()

Methods inherited from class java.lang.Object

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

Constructor Detail

BKStateStoreImpl

public BKStateStoreImpl(String tenant,
                        String namespace,
                        String name,
                        org.apache.bookkeeper.api.kv.Table<io.netty.buffer.ByteBuf,io.netty.buffer.ByteBuf> table)

Method Detail

tenant

public String tenant()

Specified by:

tenant in interface StateStore

namespace

public String namespace()

Specified by:

namespace in interface StateStore

name

public String name()

Specified by:

name in interface StateStore

fqsn

public String fqsn()

Specified by:

fqsn in interface StateStore

init

public void init(StateStoreContext ctx)

Specified by:

init in interface StateStore

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface StateStore

incrCounterAsync

public CompletableFuture<Void> incrCounterAsync(String key,
                                                long amount)

Specified by:

incrCounterAsync in interface CounterStateStore

incrCounter

public void incrCounter(String key,
                        long amount)

Specified by:

incrCounter in interface CounterStateStore

getCounterAsync

public CompletableFuture<Long> getCounterAsync(String key)

Specified by:

getCounterAsync in interface CounterStateStore

getCounter

public long getCounter(String key)

Specified by:

getCounter in interface CounterStateStore

putAsync

public CompletableFuture<Void> putAsync(String key,
                                        ByteBuffer value)

Specified by:

putAsync in interface ByteBufferStateStore

put

public void put(String key,
                ByteBuffer value)

Specified by:

put in interface ByteBufferStateStore

deleteAsync

public CompletableFuture<Void> deleteAsync(String key)

Specified by:

deleteAsync in interface ByteBufferStateStore

delete

public void delete(String key)

Specified by:

delete in interface ByteBufferStateStore

getAsync

public CompletableFuture<ByteBuffer> getAsync(String key)

Specified by:

getAsync in interface ByteBufferStateStore

get

public ByteBuffer get(String key)

Specified by:

get in interface ByteBufferStateStore