SubtaskState (Flink : Runtime 1.16.0 API)

java.lang.Object
- org.apache.flink.runtime.checkpoint.SubtaskState

所有已实现的接口:

Serializable, CompositeStateHandle, StateObject

已过时。
Internal class for savepoint backwards compatibility. Don't use for other purposes.
```
@Deprecated
public class SubtaskState
extends Object
implements CompositeStateHandle
```
Container for the chained state of one parallel subtask of an operator/task. This is part of the TaskState.

另请参阅:

序列化表格

构造器概要

构造器
构造器和说明
`SubtaskState(ChainedStateHandle<OperatorStateHandle> managedOperatorState, ChainedStateHandle<OperatorStateHandle> rawOperatorState, KeyedStateHandle managedKeyedState, KeyedStateHandle rawKeyedState)` 已过时。

方法概要

所有方法实例方法具体方法已过时的方法
限定符和类型	方法和说明
`void`	`discardState()` 已过时。 Discards the state referred to and solemnly owned by this handle, to free up resources in the persistent storage.
`boolean`	`equals(Object o)` 已过时。
`long`	`getCheckpointedSize()` 已过时。 Returns the persisted data size during checkpoint execution in bytes.
`KeyedStateHandle`	`getManagedKeyedState()` 已过时。
`ChainedStateHandle<OperatorStateHandle>`	`getManagedOperatorState()` 已过时。
`KeyedStateHandle`	`getRawKeyedState()` 已过时。
`ChainedStateHandle<OperatorStateHandle>`	`getRawOperatorState()` 已过时。
`long`	`getStateSize()` 已过时。 Returns the size of the state in bytes.
`int`	`hashCode()` 已过时。
`void`	`registerSharedStates(SharedStateRegistry sharedStateRegistry, long checkpointID)` 已过时。 Register both newly created and already referenced shared states in the given `SharedStateRegistry`.
`String`	`toString()` 已过时。

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- 构造器详细资料
  - SubtaskState
```
public SubtaskState(ChainedStateHandle<OperatorStateHandle> managedOperatorState,
                    ChainedStateHandle<OperatorStateHandle> rawOperatorState,
                    KeyedStateHandle managedKeyedState,
                    KeyedStateHandle rawKeyedState)
```
    已过时。
- 方法详细资料
  - getManagedOperatorState
```
public ChainedStateHandle<OperatorStateHandle> getManagedOperatorState()
```
    已过时。
  - getRawOperatorState
```
public ChainedStateHandle<OperatorStateHandle> getRawOperatorState()
```
    已过时。
  - getManagedKeyedState
```
public KeyedStateHandle getManagedKeyedState()
```
    已过时。
  - getRawKeyedState
```
public KeyedStateHandle getRawKeyedState()
```
    已过时。
  - discardState
```
public void discardState()
```
    已过时。
    
    从接口复制的说明: StateObject
    
    Discards the state referred to and solemnly owned by this handle, to free up resources in the persistent storage. This method is called when the state represented by this object will not be used any more.
    
    指定者:
    
    discardState 在接口中 StateObject
  - registerSharedStates
```
public void registerSharedStates(SharedStateRegistry sharedStateRegistry,
                                 long checkpointID)
```
    已过时。
    
    从接口复制的说明: CompositeStateHandle
    
    Register both newly created and already referenced shared states in the given SharedStateRegistry. This method is called when the checkpoint successfully completes or is recovered from failures.
    After this is completed, newly created shared state is considered as published is no longer owned by this handle. This means that it should no longer be deleted as part of calls to StateObject.discardState(). Instead, StateObject.discardState() will trigger an unregistration from the registry.
    
    指定者:
    
    registerSharedStates 在接口中 CompositeStateHandle
    
    参数:
    
    sharedStateRegistry - The registry where shared states are registered.
  - getStateSize
```
public long getStateSize()
```
    已过时。
    
    从接口复制的说明: StateObject
    
    Returns the size of the state in bytes. If the size is not known, this method should return 0.
    The values produced by this method are only used for informational purposes and for metrics/monitoring. If this method returns wrong values, the checkpoints and recovery will still behave correctly. However, efficiency may be impacted (wrong space pre-allocation) and functionality that depends on metrics (like monitoring) will be impacted.
    Note for implementors: This method should not perform any I/O operations while obtaining the state size (hence it does not declare throwing an IOException). Instead, the state size should be stored in the state object, or should be computable from the state stored in this object. The reason is that this method is called frequently by several parts of the checkpointing and issuing I/O requests from this method accumulates a heavy I/O load on the storage system at higher scale.
    
    指定者:
    
    getStateSize 在接口中 StateObject
    
    返回:
    
    Size of the state in bytes.
  - getCheckpointedSize
```
public long getCheckpointedSize()
```
    已过时。
    
    从接口复制的说明: CompositeStateHandle
    
    Returns the persisted data size during checkpoint execution in bytes. If incremental checkpoint is enabled, this value represents the incremental persisted data size, and usually smaller than StateObject.getStateSize(). If the size is unknown, this method would return same result as StateObject.getStateSize().
    
    指定者:
    
    getCheckpointedSize 在接口中 CompositeStateHandle
    
    返回:
    
    The persisted data size during checkpoint execution in bytes.
  - equals
```
public boolean equals(Object o)
```
    已过时。
    
    覆盖:
    
    equals 在类中 Object
  - hashCode
```
public int hashCode()
```
    已过时。
    
    覆盖:
    
    hashCode 在类中 Object
  - toString
```
public String toString()
```
    已过时。
    
    覆盖:
    
    toString 在类中 Object

类 SubtaskState

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

SubtaskState

方法详细资料

getManagedOperatorState

getRawOperatorState

getManagedKeyedState

getRawKeyedState

discardState

registerSharedStates

getStateSize

getCheckpointedSize

equals

hashCode

toString