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There is a newer version: 1.9.7

package org.biojava.ontology;

import java.util.Set;

/**
 * This is an interface for optimizing ontology operators.
 *
 * 
 * Some ontology implementations will be able to compute some derived properties
 * very quickly because of how they store their data. This is likely to out-
 * perform generic implementations of algorithms using the Ontology interface
 * to get the same result. Ontology instances provide an instance of
 * OntologyOps, publishing optimizations of some common operations. The reasoner
 * may then choose to call OntologyOps methods on the Ontology instance rather
 * than using its fall-back implementations.
 * 
 *
 * @author Matthew Pocock
 * @since 1.4
 */
public interface OntologyOps {
  /**
   * Get the set of all remote terms.
   *
   * 
   * We do not currently specify whether this set is mutable or not, and if it
   * will reflect modifications to the optimised ontolgies.
   * 
   *
   * @return a Set containing all remote terms in the ontology
   */
  public Set getRemoteTerms();
}