StateChange (Flink : Runtime 2.1.1 API)

java.lang.Object
- org.apache.flink.runtime.state.changelog.StateChange

All Implemented Interfaces:

Serializable
```
@Internal
public class StateChange
extends Object
implements Serializable
```
Change of state of a keyed operator. Used for generic incremental checkpoints.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static int META_KEY_GROUP

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`byte[]`	`getChange()`
`int`	`getKeyGroup()`
`static StateChange`	`ofDataChange(int keyGroup, byte[] change)`
`static StateChange`	`ofMetadataChange(byte[] change)`
`String`	`toString()`

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

Field Detail
- META_KEY_GROUP
```
public static final int META_KEY_GROUP
```
  See Also:
  
  Constant Field Values

Method Detail

ofMetadataChange

public static StateChange ofMetadataChange(byte[] change)

ofDataChange

public static StateChange ofDataChange(int keyGroup,
                                       byte[] change)

toString
```
public String toString()
```
Overrides:

toString in class Object

getKeyGroup
```
public int getKeyGroup()
```

getChange
```
public byte[] getChange()
```