org.semanticweb.owlapi.model.HasHashIndex Maven / Gradle / Ivy
package org.semanticweb.owlapi.model;
/**
* Interface for types with a hash index; this is used to seed the hashcode
* computation for instances, so that the hashcodes of objects with different
* types are /more/ different than the hashcodes of objects with the same type.
* One application is ensuring that punned entities do not have clashing
* hashcodes.
*/
@FunctionalInterface
public interface HasHashIndex {
/**
* @return index for this type. This is not a hashcode for instances, rather a hashcode for the
* types.
*/
int hashIndex();
}