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

Methods

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

Method Detail

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.