LinkFeatureAppender (pipeline 2.4.0-alpha02 API)

```
public interface LinkFeatureAppender
```
Responsible for appending features given a specific graph. Instances should not be reused between different graphs.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`appendFeatures(long source, long target, double[] linkFeatures, int offset)`	Adds additional features to linkFeatures
`int`	`dimension()`
`default boolean`	`isSymmetric()`

- Method Detail
  - appendFeatures
```
void appendFeatures(long source,
                    long target,
                    double[] linkFeatures,
                    int offset)
```
    Adds additional features to linkFeatures
    
    Parameters:
    
    linkFeatures - features for the pair (source, target)
    
    offset - the start offset in each double[] where the features should be added
  - dimension
```
int dimension()
```
    Returns:
    
    the number of entries to append in to the existing features
  - isSymmetric
```
default boolean isSymmetric()
```