LineageObject (Apache SystemDS 3.0.0 API)

java.lang.Object
- org.apache.sysds.runtime.instructions.spark.data.LineageObject

Direct Known Subclasses:

BroadcastObject, DatasetObject, RDDObject
```
public abstract class LineageObject
extends Object
```

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addLineageChild(LineageObject lob)`
`void`	`decrementNumReferences()`
`List<LineageObject>`	`getLineageChilds()`
`int`	`getNumReferences()`
`boolean`	`hasBackReference()`
`void`	`incrementNumReferences()`
`void`	`setBackReference(CacheableData<?> cd)`

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

Method Detail

getNumReferences
```
public int getNumReferences()
```

setBackReference

public void setBackReference(CacheableData<?> cd)

hasBackReference
```
public boolean hasBackReference()
```

incrementNumReferences
```
public void incrementNumReferences()
```

decrementNumReferences
```
public void decrementNumReferences()
```

getLineageChilds

public List<LineageObject> getLineageChilds()

addLineageChild

public void addLineageChild(LineageObject lob)