# Package org.apache.ignite.spi.collision

Contains APIs for collision SPI.

- Interface Summary
  Interface | Description
  --- | ---
  CollisionContext | Context for resolving collisions.
  CollisionExternalListener | Listener to be set on `CollisionSpi` for notification of external collision events (e.g. job stealing).
  CollisionJobContext | This interface defines set of operations that collision SPI implementation can perform on jobs that are either waiting or executing.
  CollisionSpi | Collision SPI allows to regulate how grid jobs get executed when they arrive on a destination node for execution.