Hi,
This question may be Lucene related, but since I'm using it via Neo4J I'm
asking here first. I'm using Neo4J 1.4 M06.
I have a graph representing people, with a few properties about each person
(e.g., their name and job title).
Now I'd like to create a search form that will allow the user to enter
either the person's first name, last name, title, or any combination. For
example, the query [john director] should result with all the people whose
name or title contain both john and director.
To play with that, I created this little psvm:
public class FullTextIndexTest
{
public static void main(String[] args)
{
GraphDatabaseService graphDb =
GraphDatabaseServiceFactory.createGraphDatabase("target/var/db");
Transaction t = graphDb.beginTx();
Node n1 = graphDb.createNode();
n1.setProperty("name", "John Smith");
n1.setProperty("title", "Directory Manager");
Node n2 = graphDb.createNode();
n2.setProperty("name", "Johnny Malkovich");
n2.setProperty("title", "Director of R&D");
Node n3 = graphDb.createNode();
n3.setProperty("name", "John Horovich");
n3.setProperty("title", "Sr. Director");
IndexManager index = graphDb.index();
Index<Node> fulltextPerson = index.forNodes("person-fulltext",
MapUtil.stringMap(IndexManager.PROVIDER, "lucene", "type",
"fulltext"));
fulltextPerson.add(n1, "combined", n1.getProperty("name") + " " +
n1.getProperty("title"));
fulltextPerson.add(n2, "combined", n2.getProperty("name") + " " +
n2.getProperty("title"));
fulltextPerson.add(n3, "combined", n3.getProperty("name") + " " +
n3.getProperty("title"));
t.success();
t.finish();
// search in the fulltext index
IndexHits<Node> hits = fulltextPerson.query("combined", "director
john");
System.out.printf("Found %d results:\n", hits.size());
for (Node node : hits)
{
System.out.println(node.getProperty("name") + ", " +
node.getProperty("title"));
}
}
}
I expected this program to return 1 result: John Horovich, Sr. Director
Instead, I'm getting 3:
John Horovich, Sr. Director
John Smith, Directory Manager
Johnny Malkovich, Director of R&D
It seems that Lucene will "accept" terms that contain a query term (e.g,
Directory and Johnny) even if I'm not using any wildcards in my query. How
do I turn this behavior off? I'd like the results to contain only people
whose name or title *contain* the word john, but not johnny.
Thanks!
--- Yaniv
_______________________________________________
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/user
