Lucene example source code file (TestSpanExplanations.java)

This example Lucene source code file (TestSpanExplanations.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lucene tags/keywords

exception, exception, qq, qq, spanquery, spanquery, testexplanations, testexplanations, testspanexplanations

The Lucene TestSpanExplanations.java source code

package org.apache.lucene.search.spans;

/**
 * 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.
 */

import org.apache.lucene.search.*;


/**
 * TestExplanations subclass focusing on span queries
 */
public class TestSpanExplanations extends TestExplanations {

  /* simple SpanTermQueries */
  
  public void testST1() throws Exception {
    SpanQuery q = st("w1");
    qtest(q, new int[] {0,1,2,3});
  }
  public void testST2() throws Exception {
    SpanQuery q = st("w1");
    q.setBoost(1000);
    qtest(q, new int[] {0,1,2,3});
  }
  public void testST4() throws Exception {
    SpanQuery q = st("xx");
    qtest(q, new int[] {2,3});
  }
  public void testST5() throws Exception {
    SpanQuery q = st("xx");
    q.setBoost(1000);
    qtest(q, new int[] {2,3});
  }

  /* some SpanFirstQueries */
  
  public void testSF1() throws Exception {
    SpanQuery q = sf(("w1"),1);
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSF2() throws Exception {
    SpanQuery q = sf(("w1"),1);
    q.setBoost(1000);
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSF4() throws Exception {
    SpanQuery q = sf(("xx"),2);
    qtest(q, new int[] {2});
  }
  public void testSF5() throws Exception {
    SpanQuery q = sf(("yy"),2);
    qtest(q, new int[] { });
  }
  public void testSF6() throws Exception {
    SpanQuery q = sf(("yy"),4);
    q.setBoost(1000);
    qtest(q, new int[] {2});
  }
  
  /* some SpanOrQueries */

  public void testSO1() throws Exception {
    SpanQuery q = sor("w1","QQ");
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSO2() throws Exception {
    SpanQuery q = sor("w1","w3","zz");
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSO3() throws Exception {
    SpanQuery q = sor("w5","QQ","yy");
    qtest(q, new int[] {0,2,3});
  }
  public void testSO4() throws Exception {
    SpanQuery q = sor("w5","QQ","yy");
    qtest(q, new int[] {0,2,3});
  }

  
  
  /* some SpanNearQueries */
  
  public void testSNear1() throws Exception {
    SpanQuery q = snear("w1","QQ",100,true);
    qtest(q, new int[] {});
  }
  public void testSNear2() throws Exception {
    SpanQuery q = snear("w1","xx",100,true);
    qtest(q, new int[] {2,3});
  }
  public void testSNear3() throws Exception {
    SpanQuery q = snear("w1","xx",0,true);
    qtest(q, new int[] {2});
  }
  public void testSNear4() throws Exception {
    SpanQuery q = snear("w1","xx",1,true);
    qtest(q, new int[] {2,3});
  }
  public void testSNear5() throws Exception {
    SpanQuery q = snear("xx","w1",0,false);
    qtest(q, new int[] {2});
  }

  public void testSNear6() throws Exception {
    SpanQuery q = snear("w1","w2","QQ",100,true);
    qtest(q, new int[] {});
  }
  public void testSNear7() throws Exception {
    SpanQuery q = snear("w1","xx","w2",100,true);
    qtest(q, new int[] {2,3});
  }
  public void testSNear8() throws Exception {
    SpanQuery q = snear("w1","xx","w2",0,true);
    qtest(q, new int[] {2});
  }
  public void testSNear9() throws Exception {
    SpanQuery q = snear("w1","xx","w2",1,true);
    qtest(q, new int[] {2,3});
  }
  public void testSNear10() throws Exception {
    SpanQuery q = snear("xx","w1","w2",0,false);
    qtest(q, new int[] {2});
  }
  public void testSNear11() throws Exception {
    SpanQuery q = snear("w1","w2","w3",1,true);
    qtest(q, new int[] {0,1});
  }

  
  /* some SpanNotQueries */

  public void testSNot1() throws Exception {
    SpanQuery q = snot(sf("w1",10),st("QQ"));
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSNot2() throws Exception {
    SpanQuery q = snot(sf("w1",10),st("QQ"));
    q.setBoost(1000);
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSNot4() throws Exception {
    SpanQuery q = snot(sf("w1",10),st("xx"));
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSNot5() throws Exception {
    SpanQuery q = snot(sf("w1",10),st("xx"));
    q.setBoost(1000);
    qtest(q, new int[] {0,1,2,3});
  }
  public void testSNot7() throws Exception {
    SpanQuery f = snear("w1","w3",10,true);
    f.setBoost(1000);
    SpanQuery q = snot(f, st("xx"));
    qtest(q, new int[] {0,1,3});
  }
  public void testSNot10() throws Exception {
    SpanQuery t = st("xx");
    t.setBoost(10000);
    SpanQuery q = snot(snear("w1","w3",10,true), t);
    qtest(q, new int[] {0,1,3});
  }

}