Package org.infinispan.query

Examples of org.infinispan.query.ResultIterator

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      SortField sortField = new SortField("age", SortField.INT);
      Sort sort = new Sort(sortField);
      cacheQuery.sort(sort);

      for (int i = 0; i < 2; i ++) {
         ResultIterator iterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.LAZY));
         try {
            assert cacheQuery.getResultSize() == 4 : cacheQuery.getResultSize();

            int previousAge = 0;
            while (iterator.hasNext()) {
               Person person = (Person) iterator.next();
               assert person.getAge() > previousAge;
               previousAge = person.getAge();
            }
         }
         finally {
            iterator.close();
         }
      }
   }
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   }

   public void testLazyNonOrdered() throws ParseException {
      populateCache();

      ResultIterator iterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.LAZY));
      try {
         assert cacheQuery.getResultSize() == 4 : cacheQuery.getResultSize();
      }
      finally {
         iterator.close();
      }
   }
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      // applying sort
      SortField sortField = new SortField("age", SortField.INT);
      Sort sort = new Sort(sortField);
      cacheQuery.sort(sort);

      ResultIterator iterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.EAGER));
      try {
         assert cacheQuery.getResultSize() == 4 : cacheQuery.getResultSize();

         int previousAge = 0;
         while (iterator.hasNext()) {
            Person person = (Person) iterator.next();
            assert person.getAge() > previousAge;
            previousAge = person.getAge();
         }
      } finally {
         iterator.close();
      }
   }
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   @Test(expectedExceptions = NoSuchElementException.class, expectedExceptionsMessageRegExp = "Out of boundaries")
   public void testIteratorNextOutOfBounds() throws Exception {
      populateCache();

      cacheQuery.maxResults(1);
      ResultIterator iterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.EAGER));
      try {
         assert iterator.hasNext();
         iterator.next();

         assert !iterator.hasNext();
         iterator.next();
      } finally {
         iterator.close();
      }
   }
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   @Test(expectedExceptions = UnsupportedOperationException.class)
   public void testIteratorRemove() throws Exception {
      populateCache();

      cacheQuery.maxResults(1);
      ResultIterator iterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.EAGER));
      try {
         assert iterator.hasNext();
         iterator.remove();
      } finally {
         iterator.close();
      }
   }
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      withTx(tm(), new Callable<Void>() {
         @Override
         public Void call() throws Exception {
            cache.remove("1");   // cache will now be out of sync with the index
            Query query = createQueryBuilder().keyword().onField("bar").matching("1").createQuery();
            ResultIterator iterator = searchManager.getQuery(query).iterator(new FetchOptions().fetchMode(EAGER));
            assertFalse(iterator.hasNext());
            try {
               iterator.next();
               fail("Expected NoSuchElementException");
            } catch (NoSuchElementException e) {
               // pass
            }
            return null;
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         public Void call() throws Exception {
            cache.remove("1");   // cache will now be out of sync with the index
            Query query = createQueryBuilder().keyword().onField("bar").matching("1").createQuery();
            CacheQuery cacheQuery = searchManager.getQuery(query);
            assertEquals(1, cacheQuery.getResultSize());
            ResultIterator iterator = cacheQuery.iterator();
            assertFalse(iterator.hasNext());
            try {
               iterator.next();
               fail("Expected NoSuchElementException");
            } catch (NoSuchElementException e) {
               // pass
            }
            return null;
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      withTx(tm(), new Callable<Void>() {
         @Override
         public Void call() throws Exception {
            cache.remove("1");   // cache will now be out of sync with the index
            Query query = createQueryBuilder().keyword().onField("bar").matching("1").createQuery();
            ResultIterator iterator = searchManager.getQuery(query).iterator(new FetchOptions().fetchMode(LAZY));
            assertFalse(iterator.hasNext());
            try {
               iterator.next();
               fail("Expected NoSuchElementException");
            } catch (NoSuchElementException e) {
               // pass
            }
            return null;
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      withTx(tm(), new Callable<Void>() {
         @Override
         public Void call() throws Exception {
            cache.remove("1");   // cache will now be out of sync with the index
            Query query = createQueryBuilder().keyword().onField("bar").matching("1").createQuery();
            ResultIterator iterator = searchManager.getQuery(query).projection(ProjectionConstants.VALUE, "bar").iterator(new FetchOptions().fetchMode(LAZY));
            assertTrue(iterator.hasNext());
            Object[] projection = (Object[]) iterator.next();
            assertNull(projection[0]);
            assertEquals("1", projection[1]);
            return null;
         }
      });
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      return cacheQuery;
   }

   private void assertQueryReturns(CacheQuery cacheQuery, Object[] expected) {
      assertQueryListContains(cacheQuery.list(), expected);
      final ResultIterator eagerIterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.EAGER));
      try {
         assertQueryIteratorContains(eagerIterator, expected);
      }
      finally {
         eagerIterator.close();
      }
      final ResultIterator lazyIterator = cacheQuery.iterator(new FetchOptions().fetchMode(FetchOptions.FetchMode.LAZY));
      try {
         assertQueryIteratorContains(lazyIterator, expected);
      }
      finally {
         lazyIterator.close();
      }
   }
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Related Classes of org.infinispan.query.ResultIterator

  • org.infinispan.query.blackbox.ClusteredCacheTest
  • org.infinispan.query.blackbox.ClusteredQueryTest
  • org.infinispan.query.blackbox.LocalCacheTest
  • org.infinispan.query.clustered.ClusteredCacheQueryImpl
  • org.infinispan.query.nulls.NullCollectionElementsClusteredTest
  • org.infinispan.query.nulls.NullCollectionElementsTest
  • org.infinispan.query.projection.ProjectionTest
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