org.neo4j.kernel
Class StandardBranchCollisionDetector
java.lang.Object
org.neo4j.kernel.StandardBranchCollisionDetector
- All Implemented Interfaces:
- BranchCollisionDetector
- Direct Known Subclasses:
- ShortestPathsBranchCollisionDetector
public class StandardBranchCollisionDetector
- extends Object
- implements BranchCollisionDetector
StandardBranchCollisionDetector
public StandardBranchCollisionDetector(Evaluator evaluator)
evaluate
public Collection<Path> evaluate(TraversalBranch branch,
Direction direction)
- Description copied from interface:
BranchCollisionDetector
- Evaluate the given
branch coming from either the start side or the
end side. Which side the branch represents is controlled by the direction
argument, Direction.OUTGOING means the start side and Direction.INCOMING
means the end side. Returns an Iterable of new unique Paths if
this branch resulted in a collision with other previously registered branches,
or null if this branch didn't result in any collision.
- Specified by:
evaluate in interface BranchCollisionDetector
- Parameters:
branch - the TraversalBranch to check for collision with other
previously registered branches.direction - Direction.OUTGOING if this branch represents a branch
from the start side of this bidirectional traversal, or Direction.INCOMING
for the end side.
- Returns:
- new paths formed if this branch collided with other branches,
or
null if no collision occured.
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