How to use

BasicOperations

in

org.apache.lucene.util.automaton

return BasicOperations.concatenate(automata);

@Override
public boolean equals(final Object obj) {
 if (this == obj)
  return true;
 if (!super.equals(obj))
  return false;
 if (this.getClass() != obj.getClass())
  return false;
 final NodeAutomatonQuery other = (NodeAutomatonQuery) obj;
 if (automaton == null) {
  if (other.automaton != null)
   return false;
 } else if (!BasicOperations.sameLanguage(automaton, other.automaton))
  return false;
 if (term == null) {
  if (other.term != null)
   return false;
 } else if (!term.equals(other.term))
  return false;
 return true;
}

public void testCustomProvider() throws IOException {
 final AutomatonProvider myProvider = new AutomatonProvider() {
  // automaton that matches quick or brown
  private final Automaton quickBrownAutomaton = BasicOperations.union(Arrays
    .asList(BasicAutomata.makeString("quick"),
    BasicAutomata.makeString("brown"),
    BasicAutomata.makeString("bob")));
  public Automaton getAutomaton(final String name) {
   if (name.equals("quickBrown")) return quickBrownAutomaton;
   else return null;
  }
 };
 final NodeRegexpQuery query = new NodeRegexpQuery(this.newTerm("<quickBrown>"),
  RegExp.ALL, myProvider);
 assertEquals(1, searcher.search(dq(query), 5).totalHits);
}

public void testCustomProvider() throws IOException {
 final AutomatonProvider myProvider = new AutomatonProvider() {
  // automaton that matches quick or brown
  private final Automaton quickBrownAutomaton = BasicOperations.union(Arrays
    .asList(BasicAutomata.makeString("quick"),
    BasicAutomata.makeString("brown"),
    BasicAutomata.makeString("bob")));
  public Automaton getAutomaton(final String name) {
   if (name.equals("quickBrown")) return quickBrownAutomaton;
   else return null;
  }
 };
 final NodeRegexpQuery query = new NodeRegexpQuery(this.newTerm("<quickBrown>"),
  RegExp.ALL, myProvider);
 assertEquals(1, searcher.search(dq(query), 5).totalHits);
}

@Override
public boolean equals(final Object obj) {
 if (this == obj)
  return true;
 if (!super.equals(obj))
  return false;
 if (this.getClass() != obj.getClass())
  return false;
 final NodeAutomatonQuery other = (NodeAutomatonQuery) obj;
 if (automaton == null) {
  if (other.automaton != null)
   return false;
 } else if (!BasicOperations.sameLanguage(automaton, other.automaton))
  return false;
 if (term == null) {
  if (other.term != null)
   return false;
 } else if (!term.equals(other.term))
  return false;
 return true;
}

return BasicOperations.concatenate(automata);