code: @Test public void should_persist() throws Exception {
    Long id=RandomUtils.nextLong();
    EntityWithCompositePartitionKey entity=new EntityWithCompositePartitionKey(id,"type","value");
    manager.persist(entity);
    Row row=session.execute("SELECT * FROM " + TABLE_NAME + " WHERE id="+ id+ " AND type='type'").one();
    assertThat(row).isNotNull();
    assertThat(row.getLong("id")).isEqualTo(id);
    assertThat(row.getString("type")).isEqualTo("type");
    assertThat(row.getString("value")).isEqualTo("value");
  }
  