ChildNode (OptaPlanner distribution 8.0.0.Final API)

All Known Subinterfaces:

BiConstraintGraphNode, QuadConstraintGraphNode, TriConstraintGraphNode, UniConstraintGraphChildNode

All Known Implementing Classes:

AbstractConstraintModelChildNode, AbstractConstraintModelGroupingNode, AbstractConstraintModelJoiningNode
```
public interface ChildNode
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<ConstraintGraphNode>`	`getParentNodes()`	Retrieves an unmodifiable collection of unique nodes which precede this one.

- Method Detail
  - getParentNodes
```
List<ConstraintGraphNode> getParentNodes()
```
    Retrieves an unmodifiable collection of unique nodes which precede this one.
    
    Returns:
    
    never null, never empty. Most often contains one value, join nodes will have two.