@SuppressWarnings("unchecked")
@GET
@Produces(MediaType.APPLICATION_JSON)
public Response volumes(
@QueryParam("categoryId") Long categoryId,
@QueryParam("page") Integer page,
@QueryParam("q") String q) {
Volumes volumes = new Volumes();
VolumeDAO volumeDAO = DAOFactory.getInstance().getVolumeDAO();
FullTextSession fts = org.hibernate.search.Search.getFullTextSession(volumeDAO.getSession());
try {
Query query = buildLuceneQuery(categoryId, page, q);
FullTextQuery createFullTextQuery =
fts.createFullTextQuery(query, com.book.identification.model.Volume.class);
addPaginationToQuery(createFullTextQuery, page);
List<Volume> list = createFullTextQuery.list();
for (Volume volume : list) {
volume.setPage(page);
volume.setQ(q);
}
volumes.setVolumes(createFullTextQuery.list());
} catch (ParseException e1) {
e1.printStackTrace();
}
if (volumes.getVolumes().isEmpty()) {
return Response.ok("volumes : {}").build();
}
return Response.ok(volumes).build();
}
@Test
public void testSortableField() throws Exception {
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
Item item1 = new Item();
item1.setId(3);
item1.setPrice((short) 3454);
s.persist(item1);
Item item2 = new Item();
item2.setId(2);
item2.setPrice((short) 3354);
s.persist(item2);
Item item3 = new Item();
item3.setId(1);
item3.setPrice((short) 3554);
s.persist(item3);
tx.commit();
s.clear();
tx = s.beginTransaction();
Query q =
s.getSearchFactory().buildQueryBuilder().forEntity(Item.class).get().all().createQuery();
FullTextQuery query = s.createFullTextQuery(q, Item.class);
query.setSort(new Sort(new SortField("price", SortField.Type.INT)));
List<?> results = query.list();
assertThat(results)
.onProperty("price")
.describedAs("Sortable field via programmatic config")
.containsExactly((short) 3354, (short) 3454, (short) 3554);
query.setSort(new Sort(new SortField("id", SortField.Type.STRING)));
results = query.list();
assertThat(results)
.onProperty("id")
.describedAs("Sortable field via programmatic config")
.containsExactly(1, 2, 3);
s.delete(results.get(0));
s.delete(results.get(1));
s.delete(results.get(2));
tx.commit();
s.close();
}
@Test
public void testRangeQueryBelow() throws Exception {
Transaction transaction = fullTextSession.beginTransaction();
final QueryBuilder monthQb =
fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Month.class).get();
calendar.setTimeZone(TimeZone.getTimeZone("UTC"));
calendar.set(10 + 1800, 2, 12, 0, 0, 0);
Date to = calendar.getTime();
Query query =
monthQb
.range()
.onField("estimatedCreation")
.andField("justfortest")
.ignoreFieldBridge()
.ignoreAnalyzer()
.below(to)
.createQuery();
FullTextQuery hibQuery = fullTextSession.createFullTextQuery(query, Month.class);
assertEquals(1, hibQuery.getResultSize());
assertEquals("March", ((Month) hibQuery.list().get(0)).getName());
query =
monthQb
.range()
.onField("estimatedCreation")
.ignoreFieldBridge()
.andField("justfortest")
.ignoreFieldBridge()
.ignoreAnalyzer()
.below(DateTools.round(to, DateTools.Resolution.MINUTE))
.createQuery();
hibQuery = fullTextSession.createFullTextQuery(query, Month.class);
assertEquals(1, hibQuery.getResultSize());
assertEquals("March", ((Month) hibQuery.list().get(0)).getName());
query = monthQb.range().onField("raindropInMm").below(0.24d).createQuery();
assertTrue(query.getClass().isAssignableFrom(NumericRangeQuery.class));
List<?> results = fullTextSession.createFullTextQuery(query, Month.class).list();
assertEquals("test range numeric ", 1, results.size());
assertEquals("test range numeric ", "January", ((Month) results.get(0)).getName());
transaction.commit();
}
@Test
public void testAnalyzerDef() throws Exception {
Address address = new Address();
address.setStreet1("3340 Peachtree Rd NE");
address.setStreet2("JBoss");
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
s.persist(address);
tx.commit();
s.clear();
tx = s.beginTransaction();
QueryParser parser = new QueryParser("id", TestConstants.standardAnalyzer);
org.apache.lucene.search.Query luceneQuery = parser.parse("street1_ngram:pea");
final FullTextQuery query = s.createFullTextQuery(luceneQuery);
assertEquals("Analyzer inoperant", 1, query.getResultSize());
s.delete(query.list().get(0));
tx.commit();
s.close();
}
@Test
public void testBridgeMapping() throws Exception {
Address address = new Address();
address.setStreet1("Peachtree Rd NE");
address.setStreet2("JBoss");
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
s.persist(address);
tx.commit();
s.clear();
tx = s.beginTransaction();
QueryParser parser = new QueryParser("id", TestConstants.standardAnalyzer);
org.apache.lucene.search.Query luceneQuery = parser.parse("street1:peac");
FullTextQuery query = s.createFullTextQuery(luceneQuery);
assertEquals("PrefixQuery should not be on", 0, query.getResultSize());
luceneQuery = parser.parse("street1_abridged:peac");
query = s.createFullTextQuery(luceneQuery);
assertEquals("Bridge not used", 1, query.getResultSize());
s.delete(query.list().get(0));
tx.commit();
s.close();
}
@Test
public void testMapping() throws Exception {
Address address = new Address();
address.setStreet1("3340 Peachtree Rd NE");
address.setStreet2("JBoss");
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
s.persist(address);
tx.commit();
s.clear();
tx = s.beginTransaction();
QueryParser parser = new QueryParser("id", TestConstants.standardAnalyzer);
org.apache.lucene.search.Query luceneQuery = parser.parse("" + address.getAddressId());
FullTextQuery query = s.createFullTextQuery(luceneQuery);
assertEquals("documentId does not work properly", 1, query.getResultSize());
luceneQuery = parser.parse("street1:peachtree");
query = s.createFullTextQuery(luceneQuery).setProjection("idx_street2", FullTextQuery.THIS);
assertEquals("Not properly indexed", 1, query.getResultSize());
Object[] firstResult = (Object[]) query.list().get(0);
assertEquals("@Field.store not respected", "JBoss", firstResult[0]);
// Verify that AddressClassBridge was applied as well:
luceneQuery = parser.parse("AddressClassBridge:Applied\\!");
assertEquals(1, s.createFullTextQuery(luceneQuery).getResultSize());
s.delete(firstResult[1]);
tx.commit();
s.close();
}
@Test
public void testProjectedValueGetsConvertedToNull() throws Exception {
ProgrammaticConfiguredValue nullValue = new ProgrammaticConfiguredValue(null);
FullTextSession fullTextSession = Search.getFullTextSession(openSession());
Transaction tx = fullTextSession.beginTransaction();
getSession().save(nullValue);
tx.commit();
fullTextSession.clear();
tx = fullTextSession.beginTransaction();
Query query = new MatchAllDocsQuery();
FullTextQuery fullTextQuery =
fullTextSession.createFullTextQuery(query, ProgrammaticConfiguredValue.class);
fullTextQuery.setProjection("id", "value");
fullTextQuery.setResultTransformer(new ProjectionToMapResultTransformer());
List<?> mappedResults = fullTextQuery.list();
assertTrue("Wrong result size", mappedResults.size() == 1);
Map<?, ?> map = (Map<?, ?>) mappedResults.get(0);
Integer id = (Integer) map.get("id");
assertNotNull(id);
String value = (String) map.get("value");
assertEquals("The null token should be converted back to null", null, value);
tx.commit();
fullTextSession.close();
}
@Test
@SkipForDialect(
value = {SybaseASE15Dialect.class, Sybase11Dialect.class},
comment = "Sybase does not support @Lob")
public void testCreateIndexSearchEntityWithLobField() {
// create and index
Session session = openSession();
Transaction tx = session.beginTransaction();
LobHolder lobHolder = new LobHolder();
lobHolder.setVeryLongText("this text is very long ...");
session.persist(lobHolder);
tx.commit();
session.close();
// search
session = openSession();
tx = session.beginTransaction();
FullTextSession fullTextSession = Search.getFullTextSession(session);
QueryBuilder qb =
fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(LobHolder.class).get();
Query query = qb.keyword().onField("veryLongText").matching("text").createQuery();
FullTextQuery hibernateQuery = fullTextSession.createFullTextQuery(query);
List<LobHolder> result = hibernateQuery.list();
assertEquals("We should have a match for the single LobHolder", 1, result.size());
tx.commit();
session.close();
}
@Test
public void testClassBridgeInstanceMapping() throws Exception {
OrderLine orderLine = new OrderLine();
orderLine.setName("Sequoia");
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
s.persist(orderLine);
tx.commit();
s.clear();
tx = s.beginTransaction();
QueryParser parser = new QueryParser("id", TestConstants.standardAnalyzer);
org.apache.lucene.search.Query luceneQuery = parser.parse("orderLineName:Sequoia");
FullTextQuery query = s.createFullTextQuery(luceneQuery);
assertEquals("Bridge not used", 1, query.getResultSize());
luceneQuery = parser.parse("orderLineName_ngram:quo");
query = s.createFullTextQuery(luceneQuery);
assertEquals("Analyzer configuration not applied", 1, query.getResultSize());
luceneQuery = parser.parse("orderLineNameViaParam:Sequoia");
query = s.createFullTextQuery(luceneQuery);
assertEquals("Parameter configuration not applied", 1, query.getResultSize());
s.delete(query.list().get(0));
tx.commit();
s.close();
}
public void testQueryOnAllEntities() throws Exception {
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
Person person = new Person();
person.setName("Jon Doe");
s.save(person);
tx.commit();
tx = s.beginTransaction();
QueryParser parser =
new QueryParser(
TestConstants.getTargetLuceneVersion(), "name", TestConstants.standardAnalyzer);
Query query = parser.parse("name:foo");
FullTextQuery hibQuery = s.createFullTextQuery(query);
try {
hibQuery.list();
fail();
} catch (SearchException e) {
assertTrue("Wrong message", e.getMessage().startsWith("There are no mapped entities"));
}
tx.rollback();
s.close();
}
@Test(groups = "ch07")
public void testPrefixQuery() throws Exception {
FullTextSession session = Search.getFullTextSession(openSession());
Transaction tx = session.beginTransaction();
buildIndex(session, tx);
String userInput = "sea";
tx = session.beginTransaction();
PrefixQuery query = new PrefixQuery(new Term("title", userInput));
System.out.println(query.toString());
org.hibernate.search.FullTextQuery hibQuery = session.createFullTextQuery(query, Dvd.class);
List<Dvd> results = hibQuery.list();
assert results.size() == 4 : "incorrect hit count";
for (Dvd dvd : results) {
assert dvd.getTitle().indexOf("Sea") >= 0;
System.out.println(dvd.getTitle());
}
for (Object element : session.createQuery("from " + Dvd.class.getName()).list())
session.delete(element);
tx.commit();
session.close();
}
@Override
public List<T> list() {
@SuppressWarnings("unchecked")
List<T> list = fullTextQuery.list();
return list;
}
/**
* 全文检索
*
* @param page 分页对象
* @param query 关键字查询对象
* @param queryFilter 查询过滤对象
* @param sort 排序对象
* @return 分页对象
*/
@SuppressWarnings("unchecked")
public Page<T> search(Page<T> page, BooleanQuery query, BooleanQuery queryFilter, Sort sort) {
// 按关键字查询
FullTextQuery fullTextQuery = getFullTextSession().createFullTextQuery(query, entityClass);
// 过滤无效的内容
if (queryFilter != null) {
fullTextQuery.setFilter(new CachingWrapperFilter(new QueryWrapperFilter(queryFilter)));
}
// 设置排序
if (sort != null) {
fullTextQuery.setSort(sort);
}
// 定义分页
page.setCount(fullTextQuery.getResultSize());
fullTextQuery.setFirstResult(page.getFirstResult());
fullTextQuery.setMaxResults(page.getMaxResults());
// 先从持久化上下文中查找对象，如果没有再从二级缓存中查找
fullTextQuery.initializeObjectsWith(
ObjectLookupMethod.SECOND_LEVEL_CACHE, DatabaseRetrievalMethod.QUERY);
// 返回结果
page.setList(fullTextQuery.list());
return page;
}
public List<Object> listProjection(String... fields) {
fullTextQuery.setProjection(fields);
@SuppressWarnings("unchecked")
List<Object> list = fullTextQuery.list();
return list;
}
private void assertExecutionTimeoutHasNoPartialResult() {
FullTextQuery hibernateQuery = fts.createFullTextQuery(allSeikoClocksQuery, Clock.class);
hibernateQuery.limitExecutionTimeTo(30, TimeUnit.SECONDS);
List results = hibernateQuery.list();
assertEquals("Test below limit termination", 500, results.size());
assertFalse(hibernateQuery.hasPartialResults());
fts.clear();
}
@Test(groups = "ch12")
public void vectorTest() throws Exception {
FullTextSession session = Search.getFullTextSession(openSession());
Transaction tx = session.beginTransaction();
buildIndex(session, tx);
try {
tx = session.beginTransaction();
Query query = new TermQuery(new Term("content", "properties"));
System.out.println(query.toString());
FullTextQuery hibQuery = session.createFullTextQuery(query, ElectricalProperties.class);
hibQuery.setProjection(
FullTextQuery.DOCUMENT, FullTextQuery.DOCUMENT_ID, FullTextQuery.SCORE);
reader = getReader(session);
List<Object[]> results = hibQuery.list();
assert results.size() > 0 : "no results returned";
for (int x = 0; x < results.size(); x++) {
Integer docId = (Integer) results.get(x)[1];
TermPositionVector vector = (TermPositionVector) reader.getTermFreqVector(docId, "content");
String[] terms = vector.getTerms();
int[] f = vector.getTermFrequencies();
System.out.println(results.get(x)[2]);
for (int y = 0; y < vector.size(); y++) {
System.out.print("docID# =>" + docId);
System.out.print(" term => " + terms[y]);
System.out.print(" freq => " + f[y]);
int[] positions = vector.getTermPositions(y);
TermVectorOffsetInfo[] offsets = vector.getOffsets(y);
for (int z = 0; z < positions.length; z++) {
System.out.print(" position => " + positions[z]);
System.out.print(" starting offset => " + offsets[z].getStartOffset());
System.out.println(" ending offset => " + offsets[z].getEndOffset());
}
System.out.println("---------------");
}
}
for (Object element :
session.createQuery("from " + ElectricalProperties.class.getName()).list())
session.delete(element);
tx.commit();
} finally {
session.close();
if (provider != null) {
provider.closeReader(reader);
}
}
}
public int countBusLinesByFullText() {
FullTextSession fullTextSession = Search.getFullTextSession(sessions.openSession());
Transaction tx = fullTextSession.beginTransaction();
org.apache.lucene.search.Query ftQuery = new MatchAllDocsQuery();
FullTextQuery query = fullTextSession.createFullTextQuery(ftQuery, BusLine.class);
int count = query.list().size();
tx.commit();
fullTextSession.close();
return count;
}
@SuppressWarnings("unchecked")
@Override
public List<Page> fetch(Query query, Criteria crit) {
assertCriteriaEntity(crit);
FullTextSession fullTextSession = getFullTextSession();
FullTextQuery fq = fullTextSession.createFullTextQuery(query, Page.class);
fq.setCriteriaQuery(crit != null ? crit : pageDao.criteria());
return fq.list();
}
@Test
public void testFieldBridge() {
Transaction transaction = fullTextSession.beginTransaction();
final QueryBuilder monthQb =
fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Month.class).get();
Query query = monthQb.keyword().onField("monthRomanNumber").matching(2).createQuery();
FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(query, Month.class);
List<?> results = fullTextQuery.list();
assertEquals(1, results.size());
Month february = (Month) results.get(0);
assertEquals(2, february.getMonthValue());
transaction.commit();
}
@Test
public void testRangeQueryAbove() throws Exception {
Transaction transaction = fullTextSession.beginTransaction();
final QueryBuilder monthQb =
fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Month.class).get();
calendar.setTimeZone(TimeZone.getTimeZone("UTC"));
calendar.set(10 + 1900, 2, 12, 0, 0, 0);
Date to = calendar.getTime();
Query query =
monthQb
.range()
.onField("estimatedCreation")
.andField("justfortest")
.ignoreFieldBridge()
.ignoreAnalyzer()
.above(to)
.createQuery();
FullTextQuery hibQuery = fullTextSession.createFullTextQuery(query, Month.class);
assertEquals(1, hibQuery.getResultSize());
assertEquals("February", ((Month) hibQuery.list().get(0)).getName());
query =
monthQb
.range()
.onField("estimatedCreation")
.ignoreFieldBridge()
.andField("justfortest")
.ignoreFieldBridge()
.ignoreAnalyzer()
.above(DateTools.round(to, DateTools.Resolution.MINUTE))
.createQuery();
hibQuery = fullTextSession.createFullTextQuery(query, Month.class);
assertEquals(1, hibQuery.getResultSize());
assertEquals("February", ((Month) hibQuery.list().get(0)).getName());
transaction.commit();
}
@SuppressWarnings("unchecked")
@Test
public void testResultOrderedByIdAlteringSortStyle() throws Exception {
Transaction tx = fullTextSession.beginTransaction();
Query query = queryParser.parse("summary:lucene");
FullTextQuery hibQuery = fullTextSession.createFullTextQuery(query, Book.class);
hibQuery.setSort(new Sort(new SortField("id", SortField.Type.LONG, false)));
List<Book> result = hibQuery.list();
assertThat(result).onProperty("id").containsExactly(1, 2, 3, 10);
hibQuery.setSort(new Sort(new SortField("id", SortField.Type.STRING, false)));
result = hibQuery.list();
assertThat(result).onProperty("id").containsExactly(1, 10, 2, 3);
hibQuery.setSort(new Sort(new SortField("id", SortField.Type.LONG, false)));
result = hibQuery.list();
assertThat(result).onProperty("id").containsExactly(1, 2, 3, 10);
tx.commit();
}
private void assertExecutionTimeoutOccursOnList() {
FullTextQuery hibernateQuery = fts.createFullTextQuery(allSwatchClocksQuery, Clock.class);
hibernateQuery.limitExecutionTimeTo(1, TimeUnit.NANOSECONDS);
List result = hibernateQuery.list();
System.out.println("Result size early: " + result.size());
assertEquals(
"Test early failure, before the number of results are even fetched", 0, result.size());
if (result.size() == 0) {
// sometimes, this
assertTrue(hibernateQuery.hasPartialResults());
}
fts.clear();
}
private void assertTimeoutOccursOnList() {
FullTextQuery hibernateQuery = fts.createFullTextQuery(allSeikoClocksQuery, Clock.class);
hibernateQuery.setTimeout(10, TimeUnit.MICROSECONDS);
try {
hibernateQuery.list();
fail("timeout exception should happen");
} catch (QueryTimeoutException e) {
// good
} catch (Exception e) {
fail("Expected a QueryTimeoutException");
}
fts.clear();
}
public void testFilteredClasses() throws Exception {
createDoeFamily();
FullTextSession fts = Search.getFullTextSession(openSession());
Transaction tx = fts.beginTransaction();
Query q = new TermQuery(new Term("name", "doe"));
assertEquals(2, fts.createFullTextQuery(q).getResultSize());
assertEquals(2, fts.createFullTextQuery(q, Detective.class, Suspect.class).getResultSize());
FullTextQuery detectiveQuery = fts.createFullTextQuery(q, Detective.class);
assertEquals(1, detectiveQuery.getResultSize());
assertTrue(detectiveQuery.list().get(0) instanceof Detective);
FullTextQuery suspectQuery = fts.createFullTextQuery(q, Suspect.class);
assertEquals(1, suspectQuery.getResultSize());
assertTrue(suspectQuery.list().get(0) instanceof Suspect);
assertEquals(2, fts.createFullTextQuery(q).getResultSize());
assertEquals(2, fts.createFullTextQuery(q, Detective.class, Suspect.class).getResultSize());
tx.commit();
fts.close();
}
@Override
public ListPart<T> listPart(Long firstResult, Long maxResults) {
applyPartialResults(fullTextQuery, firstResult, maxResults);
@SuppressWarnings("unchecked")
List<T> list = fullTextQuery.list();
return ListPart.newListPart(
list,
firstResult,
maxResults,
Long.valueOf(fullTextQuery.getResultSize()),
!fullTextQuery.hasPartialResults());
}
public ListPart<Object> listPartProjection(Long firstResult, Long maxResults, String... fields) {
applyPartialResults(fullTextQuery, firstResult, maxResults);
fullTextQuery.setProjection(fields);
@SuppressWarnings("unchecked")
List<Object> list = fullTextQuery.list();
return ListPart.newListPart(
list,
firstResult,
maxResults,
Long.valueOf(fullTextQuery.getResultSize()),
!fullTextQuery.hasPartialResults());
}
@SkipForDialect(
value = PostgreSQLDialect.class,
jiraKey = "JBPAPP-2945",
comment = "PostgreSQL driver does not implement query timeout")
public void testEnoughTime() {
Transaction tx = fts.beginTransaction();
FullTextQuery hibernateQuery = fts.createFullTextQuery(matchAllQuery, Clock.class);
hibernateQuery.setTimeout(5, TimeUnit.MINUTES);
List results = hibernateQuery.list();
assertFalse(hibernateQuery.hasPartialResults());
assertEquals(1000, results.size());
tx.commit();
}
@SuppressWarnings("unchecked")
@Test
public void testResultOrderedByDocId() throws Exception {
Transaction tx = fullTextSession.beginTransaction();
Query query = queryParser.parse("summary:lucene");
FullTextQuery hibQuery = fullTextSession.createFullTextQuery(query, Book.class);
Sort sort = new Sort(new SortField(null, SortField.Type.DOC, false));
hibQuery.setSort(sort);
List<Book> result = hibQuery.list();
assertNotNull(result);
assertThat(result).onProperty("id").containsOnly(1, 2, 3, 10);
tx.commit();
}
/** {@inheritDoc} */
public List<T> search(String searchTerm) throws SearchException {
Session sess = getSession();
FullTextSession txtSession = Search.getFullTextSession(sess);
org.apache.lucene.search.Query qry;
try {
qry =
HibernateSearchTools.generateQuery(
searchTerm, this.persistentClass, sess, defaultAnalyzer);
} catch (ParseException ex) {
throw new SearchException(ex);
}
org.hibernate.search.FullTextQuery hibQuery =
txtSession.createFullTextQuery(qry, this.persistentClass);
return hibQuery.list();
}
@Test
public void testFullTextFilterDefAtMappingLevel() throws Exception {
FullTextSession s = Search.getFullTextSession(openSession());
Transaction tx = s.beginTransaction();
Address address = new Address();
address.setStreet1("Peachtree Rd NE");
address.setStreet2("Peachtnot Rd NE");
address.setOwner("test");
Calendar c =
GregorianCalendar.getInstance(
TimeZone.getTimeZone("GMT"), Locale.ROOT); // for the sake of tests
c.set(2009, Calendar.NOVEMBER, 15);
address.setLastUpdated(c);
s.persist(address);
address = new Address();
address.setStreet1("Peachtnot Rd NE");
address.setStreet2("Peachtree Rd NE");
address.setLastUpdated(c);
address.setOwner("testowner");
s.persist(address);
tx.commit();
s.clear();
tx = s.beginTransaction();
QueryParser parser = new QueryParser("id", TestConstants.standardAnalyzer);
org.apache.lucene.search.Query luceneQuery = parser.parse("street1:Peachtnot");
FullTextQuery query =
s.createFullTextQuery(luceneQuery).setProjection(FullTextQuery.THIS, FullTextQuery.SCORE);
query.enableFullTextFilter("security").setParameter("ownerName", "testowner");
assertEquals("expecting 1 results", 1, query.getResultSize());
@SuppressWarnings("unchecked")
List<Object[]> results = query.list();
for (Object[] result : results) {
s.delete(result[0]);
}
tx.commit();
s.close();
}
