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org.semanticweb.owlapi.model.HasHashIndex Maven / Gradle / Ivy

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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();
}




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