| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.lucene.search; |
| |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field.Store; |
| import org.apache.lucene.document.StringField; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestBlendedTermQuery extends LuceneTestCase { |
| |
| public void testEquals() { |
| Term t1 = new Term("foo", "bar"); |
| |
| BlendedTermQuery bt1 = new BlendedTermQuery.Builder() |
| .add(t1) |
| .build(); |
| BlendedTermQuery bt2 = new BlendedTermQuery.Builder() |
| .add(t1) |
| .build(); |
| QueryUtils.checkEqual(bt1, bt2); |
| |
| bt1 = new BlendedTermQuery.Builder() |
| .setRewriteMethod(BlendedTermQuery.BOOLEAN_REWRITE) |
| .add(t1) |
| .build(); |
| bt2 = new BlendedTermQuery.Builder() |
| .setRewriteMethod(BlendedTermQuery.DISJUNCTION_MAX_REWRITE) |
| .add(t1) |
| .build(); |
| QueryUtils.checkUnequal(bt1, bt2); |
| |
| Term t2 = new Term("foo", "baz"); |
| |
| bt1 = new BlendedTermQuery.Builder() |
| .add(t1) |
| .add(t2) |
| .build(); |
| bt2 = new BlendedTermQuery.Builder() |
| .add(t2) |
| .add(t1) |
| .build(); |
| QueryUtils.checkEqual(bt1, bt2); |
| |
| float boost1 = random().nextFloat(); |
| float boost2 = random().nextFloat(); |
| bt1 = new BlendedTermQuery.Builder() |
| .add(t1, boost1) |
| .add(t2, boost2) |
| .build(); |
| bt2 = new BlendedTermQuery.Builder() |
| .add(t2, boost2) |
| .add(t1, boost1) |
| .build(); |
| QueryUtils.checkEqual(bt1, bt2); |
| } |
| |
| public void testToString() { |
| assertEquals("Blended()", new BlendedTermQuery.Builder().build().toString()); |
| Term t1 = new Term("foo", "bar"); |
| assertEquals("Blended(foo:bar)", new BlendedTermQuery.Builder().add(t1).build().toString()); |
| Term t2 = new Term("foo", "baz"); |
| assertEquals("Blended(foo:bar foo:baz)", new BlendedTermQuery.Builder().add(t1).add(t2).build().toString()); |
| assertEquals("Blended((foo:bar)^4.0 (foo:baz)^3.0)", new BlendedTermQuery.Builder().add(t1, 4).add(t2, 3).build().toString()); |
| } |
| |
| public void testBlendedScores() throws IOException { |
| Directory dir = newDirectory(); |
| RandomIndexWriter w = new RandomIndexWriter(random(), dir); |
| |
| Document doc = new Document(); |
| doc.add(new StringField("f", "a", Store.NO)); |
| w.addDocument(doc); |
| |
| doc = new Document(); |
| doc.add(new StringField("f", "b", Store.NO)); |
| for (int i = 0; i < 10; ++i) { |
| w.addDocument(doc); |
| } |
| |
| IndexReader reader = w.getReader(); |
| IndexSearcher searcher = newSearcher(reader); |
| BlendedTermQuery query = new BlendedTermQuery.Builder() |
| .setRewriteMethod(new BlendedTermQuery.DisjunctionMaxRewrite(0f)) |
| .add(new Term("f", "a")) |
| .add(new Term("f", "b")) |
| .build(); |
| |
| TopDocs topDocs = searcher.search(query, 20); |
| assertEquals(11, topDocs.totalHits.value); |
| // All docs must have the same score |
| for (int i = 0; i < topDocs.scoreDocs.length; ++i) { |
| assertEquals(topDocs.scoreDocs[0].score, topDocs.scoreDocs[i].score, 0.0f); |
| } |
| |
| reader.close(); |
| w.close(); |
| dir.close(); |
| } |
| |
| } |