TestMultiPhraseQuerypublic class TestMultiPhraseQuery extends TestCase | This class tests the MultiPhraseQuery class. |
| Constructors Summary |
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public TestMultiPhraseQuery(String name)
super(name);
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| Methods Summary |
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| private void | add(java.lang.String s, org.apache.lucene.index.IndexWriter writer)
Document doc = new Document();
doc.add(new Field("body", s, Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc);
| | private void | add(java.lang.String s, java.lang.String type, org.apache.lucene.index.IndexWriter writer)
Document doc = new Document();
doc.add(new Field("body", s, Field.Store.YES, Field.Index.TOKENIZED));
doc.add(new Field("type", type, Field.Store.YES, Field.Index.UN_TOKENIZED));
writer.addDocument(doc);
| | public void | testBooleanQueryContainingSingleTermPrefixQuery()
// this tests against bug 33161 (now fixed)
// In order to cause the bug, the outer query must have more than one term
// and all terms required.
// The contained PhraseMultiQuery must contain exactly one term array.
RAMDirectory indexStore = new RAMDirectory();
IndexWriter writer = new IndexWriter(indexStore, new SimpleAnalyzer(), true);
add("blueberry pie", writer);
add("blueberry chewing gum", writer);
add("blue raspberry pie", writer);
writer.optimize();
writer.close();
IndexSearcher searcher = new IndexSearcher(indexStore);
// This query will be equivalent to +body:pie +body:"blue*"
BooleanQuery q = new BooleanQuery();
q.add(new TermQuery(new Term("body", "pie")), BooleanClause.Occur.MUST);
MultiPhraseQuery trouble = new MultiPhraseQuery();
trouble.add(new Term[] {
new Term("body", "blueberry"),
new Term("body", "blue")
});
q.add(trouble, BooleanClause.Occur.MUST);
// exception will be thrown here without fix
Hits hits = searcher.search(q);
assertEquals("Wrong number of hits", 2, hits.length());
searcher.close();
| | public void | testPhrasePrefix()
RAMDirectory indexStore = new RAMDirectory();
IndexWriter writer = new IndexWriter(indexStore, new SimpleAnalyzer(), true);
add("blueberry pie", writer);
add("blueberry strudel", writer);
add("blueberry pizza", writer);
add("blueberry chewing gum", writer);
add("bluebird pizza", writer);
add("bluebird foobar pizza", writer);
add("piccadilly circus", writer);
writer.optimize();
writer.close();
IndexSearcher searcher = new IndexSearcher(indexStore);
// search for "blueberry pi*":
MultiPhraseQuery query1 = new MultiPhraseQuery();
// search for "strawberry pi*":
MultiPhraseQuery query2 = new MultiPhraseQuery();
query1.add(new Term("body", "blueberry"));
query2.add(new Term("body", "strawberry"));
LinkedList termsWithPrefix = new LinkedList();
IndexReader ir = IndexReader.open(indexStore);
// this TermEnum gives "piccadilly", "pie" and "pizza".
String prefix = "pi";
TermEnum te = ir.terms(new Term("body", prefix));
do {
if (te.term().text().startsWith(prefix))
{
termsWithPrefix.add(te.term());
}
} while (te.next());
query1.add((Term[])termsWithPrefix.toArray(new Term[0]));
assertEquals("body:\"blueberry (piccadilly pie pizza)\"", query1.toString());
query2.add((Term[])termsWithPrefix.toArray(new Term[0]));
assertEquals("body:\"strawberry (piccadilly pie pizza)\"", query2.toString());
Hits result;
result = searcher.search(query1);
assertEquals(2, result.length());
result = searcher.search(query2);
assertEquals(0, result.length());
// search for "blue* pizza":
MultiPhraseQuery query3 = new MultiPhraseQuery();
termsWithPrefix.clear();
prefix = "blue";
te = ir.terms(new Term("body", prefix));
do {
if (te.term().text().startsWith(prefix))
{
termsWithPrefix.add(te.term());
}
} while (te.next());
query3.add((Term[])termsWithPrefix.toArray(new Term[0]));
query3.add(new Term("body", "pizza"));
result = searcher.search(query3);
assertEquals(2, result.length()); // blueberry pizza, bluebird pizza
assertEquals("body:\"(blueberry bluebird) pizza\"", query3.toString());
// test slop:
query3.setSlop(1);
result = searcher.search(query3);
assertEquals(3, result.length()); // blueberry pizza, bluebird pizza, bluebird foobar pizza
MultiPhraseQuery query4 = new MultiPhraseQuery();
try {
query4.add(new Term("field1", "foo"));
query4.add(new Term("field2", "foobar"));
fail();
} catch(IllegalArgumentException e) {
// okay, all terms must belong to the same field
}
searcher.close();
indexStore.close();
| | public void | testPhrasePrefixWithBooleanQuery()
RAMDirectory indexStore = new RAMDirectory();
IndexWriter writer = new IndexWriter(indexStore, new StandardAnalyzer(new String[]{}), true);
add("This is a test", "object", writer);
add("a note", "note", writer);
writer.close();
IndexSearcher searcher = new IndexSearcher(indexStore);
// This query will be equivalent to +type:note +body:"a t*"
BooleanQuery q = new BooleanQuery();
q.add(new TermQuery(new Term("type", "note")), BooleanClause.Occur.MUST);
MultiPhraseQuery trouble = new MultiPhraseQuery();
trouble.add(new Term("body", "a"));
trouble.add(new Term[] { new Term("body", "test"), new Term("body", "this") });
q.add(trouble, BooleanClause.Occur.MUST);
// exception will be thrown here without fix for #35626:
Hits hits = searcher.search(q);
assertEquals("Wrong number of hits", 0, hits.length());
searcher.close();
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