SimpleVersionedListState (Flink : Runtime 2.1.0 API)

java.lang.Object
- org.apache.flink.streaming.api.operators.util.SimpleVersionedListState<T>

Type Parameters:

T - The type of the objects stored in the state.

All Implemented Interfaces:

org.apache.flink.api.common.state.AppendingState<T,Iterable<T>>, org.apache.flink.api.common.state.ListState<T>, org.apache.flink.api.common.state.MergingState<T,Iterable<T>>, org.apache.flink.api.common.state.State
```
public class SimpleVersionedListState<T>
extends Object
implements org.apache.flink.api.common.state.ListState<T>
```
A ListState that uses a SimpleVersionedSerializer instead of a TypeSerializer.
The state wraps a ListState of type byte[], meaning it internally keeps only bytes and lazily deserializes them into objects. This has two major implications, compared to a ListState states that uses a TypeSerializer:
- This state does not participate in >state migration. The bytes are never converted and different state versions are lazily resolved by the versioned serializer.
- This state is generally slower than states that directly use the TypeSerializer, because of extra copies into byte arrays and extra version encodings.

Constructor Summary

Constructors
Constructor	Description
`SimpleVersionedListState(org.apache.flink.api.common.state.ListState<byte[]> rawState, org.apache.flink.core.io.SimpleVersionedSerializer<T> serializer)`	Creates a new SimpleVersionedListState that reads and writes bytes from the given raw ListState with the given serializer.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(T value)`
`void`	`addAll(List<T> values)`
`void`	`clear()`
`Iterable<T>`	`get()`
`void`	`update(List<T> values)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SimpleVersionedListState
```
public SimpleVersionedListState(org.apache.flink.api.common.state.ListState<byte[]> rawState,
                                org.apache.flink.core.io.SimpleVersionedSerializer<T> serializer)
```
    Creates a new SimpleVersionedListState that reads and writes bytes from the given raw ListState with the given serializer.
- Method Detail
  - update
```
public void update(@Nullable
                   List<T> values)
            throws Exception
```
    Specified by:
    
    update in interface org.apache.flink.api.common.state.ListState<T>
    
    Throws:
    
    Exception
  - addAll
```
public void addAll(@Nullable
                   List<T> values)
            throws Exception
```
    Specified by:
    
    addAll in interface org.apache.flink.api.common.state.ListState<T>
    
    Throws:
    
    Exception
  - get
```
public Iterable<T> get()
                throws Exception
```
    Specified by:
    
    get in interface org.apache.flink.api.common.state.AppendingState<T,Iterable<T>>
    
    Throws:
    
    Exception
  - add
```
public void add(T value)
         throws Exception
```
    Specified by:
    
    add in interface org.apache.flink.api.common.state.AppendingState<T,Iterable<T>>
    
    Throws:
    
    Exception
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface org.apache.flink.api.common.state.State