Module datarush.library
Package com.pervasive.datarush.namespace

Interface CollisionPolicy<T>

Type Parameters:
T - the type of object stored in the namespace
public interface CollisionPolicy<T>
Handler for name collisions within a namespace. By specifying a CollisionPolicy, a user can control the behavior of a NamespaceBuilder when an add requests the use of a name already associated with another entry.

A number of common policies are defined in NamespaceBuilder. Refer to the Javadoc there for details.

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    handleCollision(T entry, String name, int failureCount)
    Computes an alternate name for an entry when a collision occurs in a namespace.

  • Method Details

    • handleCollision

      String handleCollision(T entry, String name, int failureCount)
      Computes an alternate name for an entry when a collision occurs in a namespace.
      Parameters:
      entry - the object added to the namespace
      name - the name requested to be associated with the object in the namespace
      failureCount - the number of times the collision handler has been invoked for this object
      Returns:
      a new name to associate with the object. Returning null indicates the object should replace the existing entry associated with the name.