ConcatenatedExtract (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.streaming.api.functions.windowing.delta.extractor.ConcatenatedExtract<FROM,OVER,TO>

Type Parameters:

FROM - The input type of the first extractor.

OVER - The output type of the first and the input type of the second extractor.

TO - The output type of the second extractor and the output type of the over all extraction.

All Implemented Interfaces:

Serializable, Extractor<FROM,TO>
```
@Internal
public class ConcatenatedExtract<FROM,OVER,TO>
extends Object
implements Extractor<FROM,TO>
```
Combines two extractors which will be executed one after each other.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`ConcatenatedExtract(Extractor<FROM,OVER> e1, Extractor<OVER,TO> e2)`	Combines two extractors which will be executed one after each other.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<OUT> ConcatenatedExtract<FROM,TO,OUT>`	`add(Extractor<TO,OUT> e3)`
`TO`	`extract(FROM in)`	Extracts/Converts the given input to an object of the output type.

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

- Constructor Detail
  - ConcatenatedExtract
```
public ConcatenatedExtract(Extractor<FROM,OVER> e1,
                           Extractor<OVER,TO> e2)
```
    Combines two extractors which will be executed one after each other.
    
    Parameters:
    
    e1 - First extractor: This extractor gets applied to the input data first. Its output as then passed as input to the second extractor.
    
    e2 - Second extractor: This extractor gets the output of the first extractor as input. Its output is then the result of the over all extraction.
- Method Detail
  - extract
```
public TO extract(FROM in)
```
    Description copied from interface: Extractor
    
    Extracts/Converts the given input to an object of the output type.
    
    Specified by:
    
    extract in interface Extractor<FROM,OVER>
    
    Parameters:
    
    in - the input data
    
    Returns:
    
    the extracted/converted data
  - add
```
public <OUT> ConcatenatedExtract<FROM,TO,OUT> add(Extractor<TO,OUT> e3)
```