io.ray.streaming.state.keystate.state.impl

Class ListStateImpl<V>

java.lang.Object

io.ray.streaming.state.keystate.state.impl.ListStateImpl<V>

All Implemented Interfaces:

ListState<V>, State, UnaryState<List<V>>

public class ListStateImpl<V>
extends Object
implements ListState<V>

ListState implementation.

Constructor Summary

Constructors

Constructor and Description
ListStateImpl(ListStateDescriptor<V> descriptor, AbstractKeyStateBackend backend)

Method Summary

Modifier and Type	Method and Description
void	add(V value) add the value to list
List<V>	get() get the value in state
void	setCurrentKey(Object currentKey) set current key of the state
void	update(List<V> list) update list state

Methods inherited from class java.lang.Object

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

Constructor Detail

ListStateImpl

public ListStateImpl(ListStateDescriptor<V> descriptor,
                     AbstractKeyStateBackend backend)

Method Detail

get

public List<V> get()

Description copied from interface: UnaryState

get the value in state

Specified by:

get in interface UnaryState<List<V>>

Returns:

the value in state

add

public void add(V value)

Description copied from interface: ListState

add the value to list

Specified by:

add in interface ListState<V>

Parameters:

value - the new value

update

public void update(List<V> list)

Description copied from interface: ListState

update list state

Specified by:

update in interface ListState<V>

Parameters:

list - the new value

setCurrentKey

public void setCurrentKey(Object currentKey)

Description copied from interface: State

set current key of the state

Specified by:

setCurrentKey in interface State