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LuceneIndexSiteExamples.java
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LuceneIndexSiteExamples.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package examples;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.index.Index;
import org.neo4j.test.TestGraphDatabaseFactory;
import static org.junit.Assert.assertNotNull;
public class LuceneIndexSiteExamples
{
private static GraphDatabaseService graphDb;
private Transaction tx;
@BeforeClass
public static void setUpDb()
{
graphDb = new TestGraphDatabaseFactory().newImpermanentDatabase();
}
@Before
public void beginTx()
{
tx = graphDb.beginTx();
}
@After
public void finishTx()
{
tx.success();
tx.close();
}
@Test
public void addSomeThings()
{
// START SNIPPET: add
Index<Node> persons = graphDb.index().forNodes( "persons" );
Node morpheus = graphDb.createNode();
Node trinity = graphDb.createNode();
Node neo = graphDb.createNode();
persons.add( morpheus, "name", "Morpheus" );
persons.add( morpheus, "rank", "Captain" );
persons.add( trinity, "name", "Trinity" );
persons.add( neo, "name", "Neo" );
persons.add( neo, "title", "The One" );
// END SNIPPET: add
}
@Test
public void doSomeGets()
{
Index<Node> persons = graphDb.index().forNodes( "persons" );
// START SNIPPET: get
Node morpheus = persons.get( "name", "Morpheus" ).getSingle();
// END SNIPPET: get
assertNotNull( morpheus );
}
@Test
public void doSomeQueries()
{
Index<Node> persons = graphDb.index().forNodes( "persons" );
// START SNIPPET: query
for ( Node person : persons.query( "name", "*e*" ) )
{
// It will get Morpheus and Neo
}
Node neo = persons.query( "name:*e* AND title:\"The One\"" ).getSingle();
// END SNIPPET: query
assertNotNull( neo );
}
}