Develop Reference

Springfox : Short type is considered as $int32

Language
Java / Springboot / Springfox[ 2.9.2]
Description
Hi, i'm using springfox-swagger-ui and springfox-bean-validators
How can i tell to swagger that my property is a Short ($int16)
My Pojo
#ApiModelProperty(required = true, dataType = "java.lang.Short")
#NotNull
#JsonProperty("deviceId")
private Short deviceId;
The result in Swagger
deviceId* | integer($int32)
Expected
deviceId* | $int16
Thanks a lot
Cordially

Unfortunately you can't.
Swagger specification does not support short (int16) data type.
Supported data types:
+-------------+---------+-----------+--------------------------------------------------+
| Common Name | type | format | Comments |
+-------------+---------+-----------+--------------------------------------------------+
| integer | integer | int32 | signed 32 bits |
| long | integer | int64 | signed 64 bits |
| float | number | float | |
| double | number | double | |
| string | string | | |
| byte | string | byte | base64 encoded characters |
| binary | string | binary | any sequence of octets |
| boolean | boolean | | |
| date | string | date | As defined by full-date - RFC3339 |
| dateTime | string | date-time | As defined by date-time - RFC3339 |
| password | string | password | Used to hint UIs the input needs to be obscured. |
+-------------+---------+-----------+--------------------------------------------------+

Memory leak with hashMap

I have a memory leak problem that I need to resolve it.
I have this File can help me to find the memory leak
2'777'369'064 (62.72%) [32] 8 class */planning/canvas/shared/serializable/ActionCycleSZ 0x68759f768
|- 2'777'365'536 (62.72%) [256] 35 org/apache/catalina/loader/WebappClassLoader 0x688ce9df8
| |- 2'775'589'272 (62.68%) [48] 1 java/util/HashMap 0x688ceabe0
| | |- 2'775'589'224 (62.68%) [32'784] 3'533 array of java/util/HashMap$Entry 0x689af74c0
| | |- 2'763'509'944 (62.41%) [24] 2 java/util/HashMap$Entry 0x68a0b1f98
| | | |- 2'763'509'744 (62.41%) [40] 1 org/apache/catalina/loader/ResourceEntry 0x68a0b1fb0
| | | | |- 2'763'509'704 (62.41%) [32] 41 class */gwt/server/servlet/TaProjectsSessionManager 0x68653c8e8
| | | | |- 2'763'047'360 (62.4%) [32] 6 class */selfservice/SelfConfigurator 0x6875922a0
| | | | | |- 2'763'047'328 (62.4%) [16] 2 */gwt/server/servlet/TaProjectsSessionManager$1 0x689aee328
| | | | | | |- 2'154'573'968 (48.66%) [160] 30 */impl/HRSessionImpl 0x689ee49f8
| | | | | | | |- 2'138'350'824 (48.29%) [32] 3 java/util/Collections$SynchronizedMap 0x689ee4c70
| | | | | | | | |- 2'138'350'760 (48.29%) [64] 3 org/apache/commons/collections/map/LRUMap 0x689ee5218
| | | | | | | | | |- 2'134'913'368 (48.21%) [32] 2 org/apache/commons/collections/map/AbstractLinkedMap$LinkEntry 0x68a3573d0
| | | | | | | | | |- 3'437'328 (0.08%) [2'064] 121 array of org/apache/commons/collections/map/AbstractHashedMap$HashEntry 0x68a356bc8
| | | | | | | | | |- 16 (0%) [16] 1 org/apache/commons/collections/map/AbstractHashedMap$KeySet 0x69d443088
| | | | | | | | |- 32 (0%) [16] 2 java/util/Collections$SynchronizedSet 0x69d443098
| | | | | | | | |- 2'138'350'824 (48.29%) [32] 3 java/util/Collections$SynchronizedMap 0x689ee4c70
| | | | | | | |- 16'078'096 (0.36%) [104] 19 */impl/Dictionary 0x689ee4ad8
I conclude that the class ActionCycleSZ produce the memory leak
this is ActionCycleSZ
public class ActionCycleSZ extends ActionDTO implements IsSerializable {
private CycleSZ bean;
public ActionCycleSZ() {
}
public ActionCycleSZ(Type actionType, CycleSZ bean ) {
super(actionType);
this.bean = bean;
}
public CycleSZ getBean(){
return bean;
}
public void setBean(CycleSZ bean){
this.bean = bean;
}
}
public class CycleSZ implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
String cycleLabel;
Date startDate;
Date endDate;
String startDateDTO;
String endDateDTO;
Integer numlign;
String accumulatedHours;
List<SiteSZ> listOfSites = new LinkedList<SiteSZ>();
//getter and setter
}
public class SiteSZ implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
int week;
String siteLabel;
Date startDate;
Date endDate;
String startHour;
String endHour;
String site;
String time;
String particularSlotTime;
Integer numlign;
DaySZ dayAttribute;
String accumulatedWeekHours;
Map<Util.WeekDays,DaySZ> mapAttributes = new
LinkedHashMap<Util.WeekDays,DaySZ>();
boolean workedDay; //Flag for Exceptional Canevas Entry
boolean reposHebdo;
String contratId; //contratId for Exceptional Canevas Entry
In all ActionCycleSZ I have just this Map Map mapAttributes = new
LinkedHashMap();
I think that is the problem of the leak. Do I think right? I see the code and I don't see something like a memory leak.
Can anyone help me how to detect this memory leak or give me examples of memory leak due to hashmap

Restriction on #OneToMany mapping

I have a product class where there is an #OneToMany association for a list of buyers. What I want to do is that buyer search performed by the association when I search for a product, use a null constraint for the end date column of the Buyer table. How to do this in a list mapping like this, below.
// it would be something I needed cri.createCriteria("listaBuyer", "buyer).add(Restriction.isNull("finalDate"));
Example
Registered data
product code | initial date | final date |
-------------------------------------------------------
1 | 2016-28-07 | 2017-28-07 |
------------------------------------------------------
2 | 2016-10-08 | 2017-28-07 |
------------------------------------------------------
3 | 2017-28-08 | |
-----------------------------------------------------
4 | 2017-30-08 | |
Product Class
public class Product {
#OneToMany(targetEntity=Buyer.class, orphanRemoval=true, cascade={CascadeType.PERSIST,CascadeType.MERGE}, mappedBy="product")
#LazyCollection(LazyCollectionOption.FALSE)
public List<Buyer> getListaBuyer() {
if (listaBuyer == null) {
listaBuyer = new ArrayList<Buyer>();
}
return listaBuyer;
}
built criterion
Criteria cri = getSession().createCriteria(Product.class);
cri.createCriteria("status", "sta");
cri.add(Restrictions.eq("id", Product.getId()));
return cri.list();
Expected outcome
product code | initial date | final date |
-------------------------------------------------------
3 | 2017-28-08 | |
-----------------------------------------------------
4 | 2017-30-08 | |
Returned result
product code | initial date | final date |
-------------------------------------------------------
1 | 2016-28-07 | 2017-28-07 |
------------------------------------------------------
2 | 2016-10-08 | 2017-28-07 |
------------------------------------------------------
3 | 2017-28-08 | |
-----------------------------------------------------
4 | 2017-30-08 | |

Select 1 item per attribute value in Spring Data MongoRepository

I have a collection of objects in MongoDB and am using Spring Data MongoDB.
My collection of entities look something like this:
--------------------------------------------
| id | snapshot | name |
--------------------------------------------
| 2 | somedate | bla |
| 2 | somedate | foo |
| 3 | somedate | bar |
| 3 | somedate | cheese |
| 6 | somedate | milk |
| 6 | somedate | lorum |
| 6 | somedate | ipsum |
| 9 | somedate | do |
| 10 | somedate | re |
| 10 | somedate | mi |
| 15 | somedate | fa |
--------------------------------------------
I want to get a list of objects where I want to have only one object of each distinct id, the object for that id should be the one with the latest date.
My result should be something like this:
--------------------------------------------
| id | snapshot | name |
--------------------------------------------
| 2 | somedate | bla |
| 3 | somedate | bar |
| 6 | somedate | milk |
| 9 | somedate | do |
| 10 | somedate | mi |
| 15 | somedate | fa |
--------------------------------------------
Is this possible in using a MongoRepository query?
I'd appreciate any help.

With the aggregation framework it's possible. Run the following aggregation operation to get the desired result:
db.collection.aggregate([
{ "$sort": { "snapshot": -1 } },
{
"$group": {
"_id": "$id",
"snapshot": { "$first": "$snapshot" },
"name": { "$first": "$name" }
}
}
])
The above native aggregation operation can then be translated to Spring Data MongoDB aggregation as:
import static org.springframework.data.mongodb.core.aggregation.Aggregation.*;
TypedAggregation<Entity> aggregation = newAggregation(Entity.class,
sort(DESC, "snapshot"),
group("id")
.first("snapshot").as("snapshot")
.first("name").as("name")
);
AggregationResults<EntityStats> result = mongoTemplate.aggregate(aggregation, EntityStats.class);

how to get communicate with 3 tables

Hi I have a table parent and its fields are
mysql> select * from parent;
+----+----------+------------+-----------------------------------+---------+------+
| id | category | is_deleted | name | version | cid |
+----+----------+------------+-----------------------------------+---------+------+
| 1 | default | | Front Office | 0 | NULL |
| 2 | default | | Food And Beverage | 0 | NULL |
| 3 | default | | House Keeping | 0 | NULL |
| 4 | default | | General | 0 | NULL |
| 5 | client | | SPA | 0 | NULL |
| 7 | client | | house | 0 | NULL |
| 8 | client | | test | 0 | NULL |
| 9 | client | | ggg | 0 | 1 |
| 10 | client | | dddd | 0 | 1 |
| 11 | client | | test1 | 0 | 1 |
| 12 | client | | java | 0 | 1 |
| 13 | client | | dcfdcddd | 0 | 1 |
| 14 | client | | qqqq | 0 | 1 |
| 15 | client | | nnnnnn | 0 | 1 |
| 16 | client | | category | 0 | 1 |
| 17 | client | | sukant | 0 | 1 |
| 18 | client | | bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb | 0 | 1 |
I have another table parent_question
mysql> select * from parent_question;
+----+------------+---------+-----+------+
| id | is_deleted | version | pid | qid |
+----+------------+---------+-----+------+
| 1 | | 0 | 1 | 1 |
| 2 | | 0 | 1 | 2 |
| 3 | | 0 | 1 | 3 |
| 4 | | 0 | 1 | 4 |
| 5 | | 0 | 1 | 5 |
| 6 | | 0 | 1 | 6 |
| 7 | | 0 | 2 | 7 |
| 8 | | 0 | 2 | 1 |
| 9 | | 0 | 2 | 2 |
| 10 | | 0 | 2 | 8 |
| 11 | | 0 | 3 | 9 |
| 12 | | 0 | 3 | 1 |
| 13 | | 0 | 3 | 10 |
| 14 | | 0 | 3 | 11 |
| 15 | | 0 | 4 | 12 |
| 16 | | 0 | 1 | 1 |
| 17 | | 0 | 1 | 2 |
| 18 | | 0 | 1 | 3 |
| 19 | | 0 | 5 | 13 |
| 20 | | 0 | 2 | 7 |
| 21 | | 0 | 2 | 2 |
| 22 | | 0 | 1 | 14 |
| 23 | | 0 | 1 | 15 |
| 24 | | 0 | 1 | 16 |
| 25 | | 1 | 1 | 17 |
| 26 | | 0 | 1 | 21 |
| 27 | | 0 | 2 | 22 |
| 28 | | 0 | 13 | 23 |
| 29 | | 0 | 9 | 24 |
| 30 | | 0 | 12 | 25 |
| 31 | | 0 | 12 | 26 |
| 32 | | 0 | 12 | 27 |
| 33 | | 0 | 12 | 28 |
| 34 | | 0 | 14 | 29 |
| 35 | | 0 | 15 | 30 |
| 36 | | 0 | 10 | 31 |
| 37 | | 0 | 4 | 32 |
| 38 | | 0 | 16 | 33 |
| 39 | | 0 | 10 | 34 |
| 40 | | 0 | 3 | 35 |
| 41 | | 0 | 17 | 36 |
| 42 | | 0 | 1 | 37 |
| 43 | | 0 | 1 | 38 |
| 44 | | 0 | 18 | 39 |
| 45 | | 0 | 18 | 40 |
+----+------------+---------+-----+------+
45 rows in set (0.00 sec)
and this is my question table
ysql> select * from question;
----+----------+------------+------------------------------------------------------------+--
id | category | is_deleted | question | v
----+----------+------------+------------------------------------------------------------+--
1 | default | | Staff Courtesy |
2 | default | | Staff Response |
3 | default | | Check In |
4 | default | | Check Out |
5 | default | | Travel Desk |
6 | default | | Door Man |
7 | default | | Restaurant Ambiance |
8 | default | | Quality Of Food |
9 | default | | Cleanliness Of The Room |
10 | default | | Room Size |
11 | default | | Room Amenities |
12 | default | | Any Other Comments ? |
13 | client | | How is Food? |
14 | client | | test question |
15 | client | | test1 |
16 | client | | test2 |
17 | client | | test2 |
18 | client | | test2 |
19 | client | | working |
20 | client | | sss |
21 | client | | ggggg |
22 | client | | this is new question |
23 | client | | dddddddddddd |
24 | client | | ggggggggggggggggg |
25 | client | | what is a class? |
26 | client | | what is inheritance |
27 | client | | what is an object |
28 | client | | what is an abstract class? |
29 | client | | qqqq |
30 | client | | nnnn question |
31 | client | | add some |
32 | client | | general question |
33 | client | | category question |
34 | client | | hhhhhhhh |
35 | client | | this is hos |
36 | client | | gggg |
37 | client | | dddd |
38 | client | | ddddd |
39 | client | | bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb |
40 | client | | ggg |
----+----------+------------+------------------------------------------------------------+--
what I know I have pid of parent_question table;
What I want question of question table;
for example.If I were given to find the question whose pid is 18.
So from the parent_question table I can know qid is 39 and 40 and from the question table 39 refers to bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb and 40 refers to ggg
What i tried
String queryString="SELECT distinct q FROM Question q , ParentQuestion pq ,Parent p where pq.qid.id = q.id and p.id = pq.pid.id and p.category = 'default' AND p.id = "+pid;
Query query=entityManagerUtil.getQuery(queryString);
List questionsList = query.getResultList();
return questionsList;
but it did not work.I mean I get nothing in the list.Can anybody point out my mistake.
question entity class
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Version;
import javax.validation.constraints.Size;
import org.springframework.beans.factory.annotation.Configurable;
#Configurable
#Entity
public class Question {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private Long id;
#Version
#Column(name = "version")
private Integer version;
private String question;
private String category;
private boolean isDeleted;
public boolean isDeleted() {
return isDeleted;
}
public void setDeleted(boolean isDeleted) {
this.isDeleted = isDeleted;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Integer getVersion() {
return version;
}
public void setVersion(Integer version) {
this.version = version;
}
public String getQuestion() {
return question;
}
public void setQuestion(String question) {
this.question = question;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
}
parent entity class
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.Version;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import org.springframework.beans.factory.annotation.Configurable;
#Configurable
#Entity
public class Parent {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private Long id;
#Version
#Column(name = "version")
private Integer version;
#ManyToOne
private Client cid;
public Client getCid() {
return cid;
}
public void setCid(Client cid) {
this.cid = cid;
}
private boolean isDeleted;
/* #ManyToOne
private Client cid;
public Client getCid() {
return cid;
}
public void setCid(Client cid) {
this.cid = cid;
}*/
public boolean isDeleted() {
return isDeleted;
}
public void setDeleted(boolean isDeleted) {
this.isDeleted = isDeleted;
}
private String name;
private String category;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Integer getVersion() {
return version;
}
public void setVersion(Integer version) {
this.version = version;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
}

Commenters are confused by your classes, and this is a good indication that you might need to think about your design. suninsky has a good point that you may not need to have an entity class call ParentQuestion (unless ParentQuestion has extra data about the relationship, of course). Here are some typical questions I would be asking.
Does every Question have a Parent? If so then there should probably be a parent property on your Question class, mapped as #ManyToOne
Does every a Parent object have a set of Questions? If yes, then the Parent object should probably have a property named questions, the type of which is some kind of collection of Question objects.