Examples with FuzzyQuery org.apache.lucene.search.FuzzyQuery used on opensource projects

Example 26 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project lucene-solr by apache.

the class TestSpanMultiTermQueryWrapper method testNoSuchMultiTermsInOr.

public void testNoSuchMultiTermsInOr() throws Exception {
    //test to make sure non existent multiterms aren't throwing null pointer exceptions  
    FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
    SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
    SpanQuery term = new SpanTermQuery(new Term("field", "brown"));
    SpanOrQuery near = new SpanOrQuery(new SpanQuery[] { term, spanNoSuch });
    assertEquals(1, searcher.search(near, 10).totalHits);
    //flip
    near = new SpanOrQuery(new SpanQuery[] { spanNoSuch, term });
    assertEquals(1, searcher.search(near, 10).totalHits);
    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
    near = new SpanOrQuery(new SpanQuery[] { term, spanWCNoSuch });
    assertEquals(1, searcher.search(near, 10).totalHits);
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
    SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
    near = new SpanOrQuery(new SpanQuery[] { term, spanRgxNoSuch });
    assertEquals(1, searcher.search(near, 10).totalHits);
    PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
    SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
    near = new SpanOrQuery(new SpanQuery[] { term, spanPrfxNoSuch });
    assertEquals(1, searcher.search(near, 10).totalHits);
    near = new SpanOrQuery(new SpanQuery[] { spanPrfxNoSuch });
    assertEquals(0, searcher.search(near, 10).totalHits);
    near = new SpanOrQuery(new SpanQuery[] { spanPrfxNoSuch, spanPrfxNoSuch });
    assertEquals(0, searcher.search(near, 10).totalHits);
}

Example 27 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project lucene-solr by apache.

the class TestSpanMultiTermQueryWrapper method testFuzzy2.

public void testFuzzy2() throws Exception {
    // maximum of 1 term expansion
    FuzzyQuery fq = new FuzzyQuery(new Term("field", "broan"), 1, 0, 1, false);
    SpanQuery sfq = new SpanMultiTermQueryWrapper<>(fq);
    // will only match jumps over lazy broun dog
    SpanPositionRangeQuery sprq = new SpanPositionRangeQuery(sfq, 0, 100);
    assertEquals(1, searcher.search(sprq, 10).totalHits);
}

Example 28 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project lucene-solr by apache.

the class TestSpanMultiTermQueryWrapper method testNoSuchMultiTermsInNear.

public void testNoSuchMultiTermsInNear() throws Exception {
    //test to make sure non existent multiterms aren't throwing null pointer exceptions  
    FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
    SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
    SpanQuery term = new SpanTermQuery(new Term("field", "brown"));
    SpanQuery near = new SpanNearQuery(new SpanQuery[] { term, spanNoSuch }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    //flip order
    near = new SpanNearQuery(new SpanQuery[] { spanNoSuch, term }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
    near = new SpanNearQuery(new SpanQuery[] { term, spanWCNoSuch }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
    SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
    near = new SpanNearQuery(new SpanQuery[] { term, spanRgxNoSuch }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
    SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
    near = new SpanNearQuery(new SpanQuery[] { term, spanPrfxNoSuch }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    //test single noSuch
    near = new SpanNearQuery(new SpanQuery[] { spanPrfxNoSuch }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    //test double noSuch
    near = new SpanNearQuery(new SpanQuery[] { spanPrfxNoSuch, spanPrfxNoSuch }, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
}

Example 29 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project lucene-solr by apache.

the class FuzzyQueryNodeBuilder method build.

@Override
public FuzzyQuery build(QueryNode queryNode) throws QueryNodeException {
    FuzzyQueryNode fuzzyNode = (FuzzyQueryNode) queryNode;
    String text = fuzzyNode.getTextAsString();
    int numEdits = FuzzyQuery.floatToEdits(fuzzyNode.getSimilarity(), text.codePointCount(0, text.length()));
    return new FuzzyQuery(new Term(fuzzyNode.getFieldAsString(), fuzzyNode.getTextAsString()), numEdits, fuzzyNode.getPrefixLength());
}

Example 30 with FuzzyQuery

use of org.apache.lucene.search.FuzzyQuery in project lucene-solr by apache.

the class SynonymTokenizer method testGetFuzzyFragments.

public void testGetFuzzyFragments() throws Exception {
    TestHighlightRunner helper = new TestHighlightRunner() {

        @Override
        public void run() throws Exception {
            numHighlights = 0;
            FuzzyQuery fuzzyQuery = new FuzzyQuery(new Term(FIELD_NAME, "kinnedy"), 2);
            fuzzyQuery.setRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_REWRITE);
            doSearching(fuzzyQuery);
            doStandardHighlights(analyzer, searcher, hits, query, HighlighterTest.this, true);
            assertTrue("Failed to find correct number of highlights " + numHighlights + " found", numHighlights == 4);
        }
    };
    helper.start();
}