org.apache.flink.state.api.input

类 MultiStateKeyIterator<K>

java.lang.Object

org.apache.flink.state.api.input.MultiStateKeyIterator<K>

类型参数:

K - Type of the key by which state is keyed.

所有已实现的接口:

Iterator<K>

@Internal
public final class MultiStateKeyIterator<K>
extends Object
implements Iterator<K>

An iterator for reading all keys in a state backend across multiple partitioned states.

To read unique keys across all partitioned states callers must invoke remove().

构造器概要

构造器

构造器和说明
MultiStateKeyIterator(List<? extends org.apache.flink.api.common.state.StateDescriptor<?,?>> descriptors, org.apache.flink.runtime.state.KeyedStateBackend<K> backend)

方法概要

限定符和类型	方法和说明
boolean	hasNext()
K	next()
void	remove() Removes the current key from ALL known states in the state backend.

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Iterator

forEachRemaining

构造器详细资料

MultiStateKeyIterator

public MultiStateKeyIterator(List<? extends org.apache.flink.api.common.state.StateDescriptor<?,?>> descriptors,
                             org.apache.flink.runtime.state.KeyedStateBackend<K> backend)

方法详细资料

hasNext

public boolean hasNext()

指定者:

hasNext 在接口中 Iterator<K>

next

public K next()

指定者:

next 在接口中 Iterator<K>

remove

public void remove()

Removes the current key from ALL known states in the state backend.

指定者:

remove 在接口中 Iterator<K>