程序包 org.apache.pulsar.functions.api.state

接口 ByteBufferStateStore

所有超级接口:

AutoCloseable, StateStore

public interface ByteBufferStateStore
extends StateStore

A key-value state store that stores values in ByteBuffer.

方法概要

修饰符和类型	方法	说明
void	delete(String key)	Delete the state value for the key.
CompletableFuture<Void>	deleteAsync(String key)	Delete the state value for the key, but don't wait for the operation to be completed
ByteBuffer	get(String key)	Retrieve the state value for the key.
CompletableFuture<ByteBuffer>	getAsync(String key)	Retrieve the state value for the key, but don't wait for the operation to be completed
void	put(String key, ByteBuffer value)	Update the state value for the key.
CompletableFuture<Void>	putAsync(String key, ByteBuffer value)	Update the state value for the key, but don't wait for the operation to be completed

从接口继承的方法 org.apache.pulsar.functions.api.StateStore

close, fqsn, init, name, namespace, tenant

方法详细资料

put

void put(String key,
 ByteBuffer value)

Update the state value for the key.

参数:

key - name of the key

value - state value of the key

putAsync

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

Update the state value for the key, but don't wait for the operation to be completed

参数:

key - name of the key

value - state value of the key

delete

void delete(String key)

Delete the state value for the key.

参数:

key - name of the key

deleteAsync

CompletableFuture<Void> deleteAsync(String key)

Delete the state value for the key, but don't wait for the operation to be completed

参数:

key - name of the key

get

ByteBuffer get(String key)

Retrieve the state value for the key.

参数:

key - name of the key

返回:

the state value for the key.

getAsync

CompletableFuture<ByteBuffer> getAsync(String key)

Retrieve the state value for the key, but don't wait for the operation to be completed

参数:

key - name of the key

返回:

the state value for the key.