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fix for bug 33161 (UnsupportedOperationException for some combinations of BooleanQuery and MultiPhraseQuery) 

PR: 33161
Submitted by: Rhett Sutphin


git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@150733 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Daniel Naber 2005-01-19 23:32:52 +00:00
parent ea3a9502f2
commit 7ff11fc34d
2 changed files with 44 additions and 8 deletions
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9
src/java/org/apache/lucene/search/MultiPhraseQuery.java
View File

@ -225,7 +225,7 @@ public class MultiPhraseQuery extends Query {
}
}
protected Weight createWeight(Searcher searcher) {
public Query rewrite(IndexReader reader) {
if (termArrays.size() == 1) { // optimize one-term case
Term[] terms = (Term[])termArrays.get(0);
BooleanQuery boq = new BooleanQuery();
@ -233,8 +233,13 @@ public class MultiPhraseQuery extends Query {
boq.add(new TermQuery(terms[i]), BooleanClause.Occur.SHOULD);
}
boq.setBoost(getBoost());
return boq.createWeight(searcher);
return boq;
} else {
return this;
}
}
protected Weight createWeight(Searcher searcher) {
return new MultiPhraseWeight(searcher);
}

43
src/test/org/apache/lucene/search/TestMultiPhraseQuery.java
View File

@ -39,13 +39,11 @@ import java.util.LinkedList;
*/
public class TestMultiPhraseQuery extends TestCase
{
public TestMultiPhraseQuery(String name)
{
public TestMultiPhraseQuery(String name) {
super(name);
}
public void testPhrasePrefix() throws IOException
{
public void testPhrasePrefix() throws IOException {
RAMDirectory indexStore = new RAMDirectory();
IndexWriter writer = new IndexWriter(indexStore, new SimpleAnalyzer(), true);
add("blueberry pie", writer);
@ -128,10 +126,43 @@ public class TestMultiPhraseQuery extends TestCase
}
private void add(String s, IndexWriter writer) throws IOException
{
private void add(String s, IndexWriter writer) throws IOException {
Document doc = new Document();
doc.add(new Field("body", s, Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc);
}
public void testBooleanQueryContainingSingleTermPrefixQuery() throws IOException {
// 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();
}
}