WindowReaderFunction.Context (Flink : Libraries : State processor API 2.0-preview1 API)

All Superinterfaces:

Serializable

Enclosing class:

WindowReaderFunction<IN,OUT,KEY,W extends org.apache.flink.streaming.api.windowing.windows.Window>
```
public static interface WindowReaderFunction.Context<W extends org.apache.flink.streaming.api.windowing.windows.Window>
extends Serializable
```
The context holding window metadata.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`org.apache.flink.api.common.state.KeyedStateStore`	`globalState()`	State accessor for per-key global state.
`Set<Long>`	`registeredEventTimeTimers()`
`Set<Long>`	`registeredProcessingTimeTimers()`
`<S extends org.apache.flink.api.common.state.State> S`	`triggerState(org.apache.flink.api.common.state.StateDescriptor<S,?> descriptor)`	Retrieves a `State` object that can be used to interact with fault-tolerant state that is scoped to the trigger which corresponds to the current window.
`W`	`window()`	Returns the window that is being evaluated.
`org.apache.flink.api.common.state.KeyedStateStore`	`windowState()`	State accessor for per-key and per-window state.

- Method Detail
  - window
```
W window()
```
    Returns the window that is being evaluated.
  - triggerState
```
<S extends org.apache.flink.api.common.state.State> S triggerState(org.apache.flink.api.common.state.StateDescriptor<S,?> descriptor)
```
    Retrieves a State object that can be used to interact with fault-tolerant state that is scoped to the trigger which corresponds to the current window.
    
    Type Parameters:
    
    S - The type of the state.
    
    Parameters:
    
    descriptor - The StateDescriptor that contains the name and type of the state that is being accessed.
    
    Returns:
    
    The partitioned state object.
  - windowState
```
org.apache.flink.api.common.state.KeyedStateStore windowState()
```
    State accessor for per-key and per-window state.
  - globalState
```
org.apache.flink.api.common.state.KeyedStateStore globalState()
```
    State accessor for per-key global state.
  - registeredEventTimeTimers
```
Set<Long> registeredEventTimeTimers()
                             throws Exception
```
    Returns:
    
    All event time timers registered by a trigger for the current window.
    
    Throws:
    
    Exception
  - registeredProcessingTimeTimers
```
Set<Long> registeredProcessingTimeTimers()
                                  throws Exception
```
    Returns:
    
    All processing time timers registered by a trigger for the current window.
    
    Throws:
    
    Exception