@Test
public void should_iterate_with_custom_params() throws Exception {
long partitionKey = RandomUtils.nextLong(0, Long.MAX_VALUE);
insertClusteredValues(partitionKey, 1, "name1", 5);
insertClusteredValues(partitionKey, 1, "name2", 5);
Iterator<ClusteredEntity> iter =
manager
.sliceQuery(ClusteredEntity.class)
.forIteration()
.withPartitionComponents(partitionKey)
.fromClusterings(1, "name13")
.toClusterings(1, "name21")
.iterator(2);
assertThat(iter.hasNext()).isTrue();
assertThat(iter.next().getValue()).isEqualTo("value13");
assertThat(iter.hasNext()).isTrue();
assertThat(iter.next().getValue()).isEqualTo("value14");
assertThat(iter.hasNext()).isTrue();
assertThat(iter.next().getValue()).isEqualTo("value15");
assertThat(iter.hasNext()).isTrue();
final ClusteredEntity next = iter.next();
assertThat(next.getId().getName()).isEqualTo("name21");
assertThat(next.getValue()).isEqualTo("value11");
assertThat(iter.hasNext()).isFalse();
}
@Test
public void should_check_for_common_operation_on_found_clustered_entity_by_iterator()
throws Exception {
long partitionKey = RandomUtils.nextLong(0, Long.MAX_VALUE);
insertClusteredValues(partitionKey, 1, "name1", 1);
Iterator<ClusteredEntity> iter =
manager
.sliceQuery(ClusteredEntity.class)
.forIteration()
.withPartitionComponents(partitionKey)
.iterator();
iter.hasNext();
ClusteredEntity clusteredEntity = iter.next();
// Check for update
clusteredEntity.setValue("dirty");
manager.update(clusteredEntity);
ClusteredEntity check = manager.find(ClusteredEntity.class, clusteredEntity.getId());
assertThat(check.getValue()).isEqualTo("dirty");
// Check for refresh
check.setValue("dirty_again");
manager.update(check);
manager.refresh(clusteredEntity);
assertThat(clusteredEntity.getValue()).isEqualTo("dirty_again");
// Check for remove
manager.delete(clusteredEntity);
assertThat(manager.find(ClusteredEntity.class, clusteredEntity.getId())).isNull();
}
@Test
public void should_iterate_with_clustering_IN() throws Exception {
// Given
long partitionKey = RandomUtils.nextLong(0, Long.MAX_VALUE);
insertClusteredValues(partitionKey, 1, "name1", 3);
insertClusteredValues(partitionKey, 1, "name2", 2);
insertClusteredValues(partitionKey, 1, "name3", 1);
insertClusteredValues(partitionKey, 1, "name4", 1);
// When
final Iterator<ClusteredEntity> iterator =
manager
.sliceQuery(ClusteredEntity.class)
.forIteration()
.withPartitionComponents(partitionKey)
.withClusterings(1)
.andClusteringsIN("name11", "name12", "name13", "name41")
.limit(100)
.iterator(2);
// Then
assertThat(iterator.hasNext()).isTrue();
ClusteredEntity next = iterator.next();
assertThat(next.getId().getName()).isEqualTo("name11");
assertThat(next.getValue()).isEqualTo("value11");
assertThat(iterator.hasNext()).isTrue();
next = iterator.next();
assertThat(next.getId().getName()).isEqualTo("name12");
assertThat(next.getValue()).isEqualTo("value12");
assertThat(iterator.hasNext()).isTrue();
next = iterator.next();
assertThat(next.getId().getName()).isEqualTo("name13");
assertThat(next.getValue()).isEqualTo("value13");
assertThat(iterator.hasNext()).isTrue();
next = iterator.next();
assertThat(next.getId().getName()).isEqualTo("name41");
assertThat(next.getValue()).isEqualTo("value11");
assertThat(iterator.hasNext()).isFalse();
}