EmptySegmentFileStateHandle (Flink : Runtime 2.1.1 API)

java.lang.Object
- org.apache.flink.runtime.state.filemerging.SegmentFileStateHandle
- - org.apache.flink.runtime.state.filemerging.EmptySegmentFileStateHandle

All Implemented Interfaces:

Serializable, StateObject, StreamStateHandle
```
public class EmptySegmentFileStateHandle
extends SegmentFileStateHandle
```
An empty SegmentFileStateHandle that is only used as a placeholder.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.flink.runtime.state.StateObject
  StateObject.StateObjectLocation, StateObject.StateObjectSizeStatsCollector

Field Summary

Fields
Modifier and Type Field Description

static EmptySegmentFileStateHandle INSTANCE
- Fields inherited from class org.apache.flink.runtime.state.filemerging.SegmentFileStateHandle
  stateSize

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`org.apache.flink.core.fs.FSDataInputStream`	`openInputStream()`	Returns an `FSDataInputStream` that can be used to read back the data that was previously written to the stream.

Methods inherited from class org.apache.flink.runtime.state.filemerging.SegmentFileStateHandle
asBytesIfInMemory, collectSizeStats, discardState, equals, getFilePath, getLogicalFileId, getScope, getStartPos, getStateSize, getStreamStateHandleID, hashCode, toString

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

Methods inherited from interface org.apache.flink.runtime.state.StreamStateHandle
maybeGetPath

- Field Detail
  - INSTANCE
```
public static final EmptySegmentFileStateHandle INSTANCE
```
- Method Detail
  - openInputStream
```
public org.apache.flink.core.fs.FSDataInputStream openInputStream()
                                                           throws IOException
```
    Description copied from interface: StreamStateHandle
    
    Returns an FSDataInputStream that can be used to read back the data that was previously written to the stream.
    
    Specified by:
    
    openInputStream in interface StreamStateHandle
    
    Overrides:
    
    openInputStream in class SegmentFileStateHandle
    
    Throws:
    
    IOException