JoinRecordStateView (Flink : 2.0-SNAPSHOT API)

All Known Subinterfaces:

OuterJoinRecordStateView
```
public interface JoinRecordStateView
```
A JoinRecordStateView is a view to the join state. It encapsulates the join state and provides some APIs facing the input records. The join state is used to store input records. The structure of the join state is vary depending on the JoinInputSideSpec.
For example: when the JoinInputSideSpec is JoinKeyContainsUniqueKey, we will use ValueState to store records which has better performance.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addRecord(RowData record)`	Add a new record to the state view.
`Iterable<RowData>`	`getRecords()`	Gets all the records under the current context (i.e. join key).
`void`	`retractRecord(RowData record)`	Retract the record from the state view.

- Method Detail
  - addRecord
```
void addRecord(RowData record)
        throws Exception
```
    Add a new record to the state view.
    
    Throws:
    
    Exception
  - retractRecord
```
void retractRecord(RowData record)
            throws Exception
```
    Retract the record from the state view.
    
    Throws:
    
    Exception
  - getRecords
```
Iterable<RowData> getRecords()
                      throws Exception
```
    Gets all the records under the current context (i.e. join key).
    
    Throws:
    
    Exception