Examples with QueryContext org.neo4j.index.lucene.QueryContext used on opensource projects

Example 21 with QueryContext

use of org.neo4j.index.lucene.QueryContext in project graphdb by neo4j-attic.

the class TestLuceneIndex method testSortByRelevance.

@Test
public void testSortByRelevance() {
    Index<Node> index = nodeIndex("relevance", LuceneIndexImplementation.EXACT_CONFIG);
    Node node1 = graphDb.createNode();
    Node node2 = graphDb.createNode();
    Node node3 = graphDb.createNode();
    index.add(node1, "name", "something");
    index.add(node2, "name", "something");
    index.add(node2, "foo", "yes");
    index.add(node3, "name", "something");
    index.add(node3, "foo", "yes");
    index.add(node3, "bar", "yes");
    restartTx();
    IndexHits<Node> hits = index.query(new QueryContext("+name:something foo:yes bar:yes").sort(Sort.RELEVANCE));
    assertEquals(node3, hits.next());
    assertEquals(node2, hits.next());
    assertEquals(node1, hits.next());
    assertFalse(hits.hasNext());
    index.delete();
    node1.delete();
    node2.delete();
    node3.delete();
}

Example 22 with QueryContext

use of org.neo4j.index.lucene.QueryContext in project graphdb by neo4j-attic.

the class TestLuceneIndex method testScoring.

@Test
public void testScoring() {
    Index<Node> index = nodeIndex("score-index", LuceneIndexImplementation.FULLTEXT_CONFIG);
    Node node1 = graphDb.createNode();
    Node node2 = graphDb.createNode();
    String key = "text";
    // Where the heck did I get this sentence from?
    index.add(node1, key, "a time where no one was really awake");
    index.add(node2, key, "once upon a time there was");
    restartTx();
    IndexHits<Node> hits = index.query(key, new QueryContext("once upon a time was").sort(Sort.RELEVANCE));
    Node hit1 = hits.next();
    float score1 = hits.currentScore();
    Node hit2 = hits.next();
    float score2 = hits.currentScore();
    assertEquals(node2, hit1);
    assertEquals(node1, hit2);
    assertTrue(score1 > score2);
}