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Variable "Name" is not readable, how can I fix it?

I was inserting some code to make a registration form, but iIfound this
class User {
private String Nama;
private String Kelas;
private int NIM;
public String getNama{
return Nama;
}
public String setNama{
}
}
The error message was all "variable is never read". Can someone explain why there is a message on this, and how I can fix it?

Though it is not clear where you use your codes, but the following is a java model class, with setter and getter method. Even it is not the direct answer of you question, but I have used this types of model class in my projects, one can find the idea of setter and getter from the following user class.
For using in various purposes You can create your User class as follows with constructors and setter and getter methods :
public class User {
private String Nama;
private String Kelas;
private int NIM;
public User() {
}
public User(String nama, String kelas, int NIM) {
Nama = nama;
Kelas = kelas;
this.NIM = NIM;
}
public String getNama() {
return Nama;
}
public void setNama(String nama) {
Nama = nama;
}
public String getKelas() {
return Kelas;
}
public void setKelas(String kelas) {
Kelas = kelas;
}
public int getNIM() {
return NIM;
}
public void setNIM(int NIM) {
this.NIM = NIM;
}
}

How to solve issue of "cannot cast object" for Microsoft SQL in spring boot?

I am trying to call a stored procedure for my application using Microsoft SQL. However, when I run the stored procedure to pass back the contents of the object it fails. I have the objects as AVSApplication and in that class it has a list of variables and methods. I tried using an Iterable and a List but both produce the same error. I am not sure where I went wrong. I looked at other similar StackOverflow questions but I didn't get much from it.
Error:
java.lang.ClassCastException: java.base/[Ljava.lang.Object; cannot be cast to com.Mapping.AVSApplication
at com.Mapping.Employeecontroller.getAll(Employeecontroller.java:33) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~
Java Entity Code:
import java.util.*;
import javax.persistence.*;
#Entity
#NamedStoredProcedureQueries(value= {
#NamedStoredProcedureQuery(name= "procedure-one", procedureName= "GetAllAppWithStatus")
})
public class AVSApplication implements java.io.Serializable {
private static final long serialVersionUID = 1L;
#Id
private String appcode;
private String acronym;
private String appname;
private String sys_id;
private String mapstatus;
private String sdg;
private String status;
private String statuscode;
//Constructor
public AVSApplication(String appcode, String acronym, String appname, String sys_id, String mapstatus,
String sdg, String status, String statuscode) {
super();
this.appcode = appcode;
this.acronym = acronym;
this.appname = appname;
this.sys_id = sys_id;
this.mapstatus = mapstatus;
this.sdg = sdg;
this.status = status;
this.statuscode = statuscode;
}
//Getters
public String getAppcode() {
return appcode;
}
public String getAcronym() {
return acronym;
}
public String getAppname() {
return appname;
}
public String getSys_id() {
return sys_id;
}
public String getMapstatus() {
return mapstatus;
}
public String getSdg() {
return sdg;
}
public String getStatus() {
return status;
}
public String getStatuscode() {
return statuscode;
}
//Setters
public void setAppcode(String appcode) {
this.appcode = appcode;
}
public void setAcronym(String acronym) {
this.acronym = acronym;
}
public void setAppname(String appname) {
this.appname = appname;
}
public void setSys_id(String sys_id) {
this.sys_id = sys_id;
}
public void setMapstatus(String mapstatus) {
this.mapstatus = mapstatus;
}
public void setSdg(String sdg) {
this.sdg = sdg;
}
public void setStatus(String status) {
this.status = status;
}
public void setStatuscode(String statuscode) {
this.statuscode = statuscode;
}
}
DAO:
#Repository
public class Employeedao {
#Autowired
private EntityManager em;
/**
* Method to fetch all employees from the db.
* #return
*/
#SuppressWarnings("unchecked")
public List<AVSApplication> getAllEmployees() {
return em.createNamedStoredProcedureQuery("procedure-one").getResultList();
}
}
Controller:
#RestController
public class Employeecontroller {
#Autowired
Employeedao edao;
/**
* Method to fetch all employees from the db.
* #return
*/
#RequestMapping(value= "/getall")
public void getAll() {
System.out.println("All objects: " + edao.getAllEmployees());
System.out.println("Get the first item in list: " + edao.getAllEmployees().get(0).getAppcode());
}
}

In given code there is nothing that would map rows returned by stored procedure AVSApplication instances:
#NamedStoredProcedureQueries(value= {
#NamedStoredProcedureQuery(name= "procedure-one", procedureName= "GetAllAppWithStatus")
})
If stored procedure matches nicely to entity, then definining result class can be enough:
#NamedStoredProcedureQueries(value= {
#NamedStoredProcedureQuery(
name= "procedure-one",
procedureName= "GetAllAppWithStatus",
resultClasses = {AVSApplication.class}
})
If there is some discrepancies, one must define SqlResultSetMapping and refer to it from resultsetMappings.

SDN4 is not returning nested Entities

Hello Stack overflow,
I have the following Problem:
I have these entity classes:
public class UnknownEntity extends NetworkEntity{
#Id
#GeneratedValue(strategy = UuidStrategy.class)
private String id;
#Override
public void setId(String id) {
this.id = id;
}
#Override
public String getId() {
return id;
}
}
#NodeEntity
public class NetworkEntity {
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
#Id
protected String id;
public List<NetworkInterfaceEntity> getInterfaces() {
return interfaces;
}
public void setInterfaces(List<NetworkInterfaceEntity> interfaces) {
this.interfaces = interfaces;
}
#Relationship(type = "is_composed_of")
protected List<NetworkInterfaceEntity> interfaces ;
}
#NodeEntity
public class NetworkInterfaceEntity {
public String getInterfaceId() {
return interfaceId;
}
public void setInterfaceId(String interfaceId) {
this.interfaceId = interfaceId;
}
public String getIpAddress() {
return ipAddress;
}
public void setIpAddress(String ipAddress) {
this.ipAddress = ipAddress;
}
public String getNetmask() {
return netmask;
}
public void setNetmask(String netmask) {
this.netmask = netmask;
}
public String getMacAddress() {
return macAddress;
}
public void setMacAddress(String macAddress) {
this.macAddress = macAddress;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public InterfaceState getState() {
return state;
}
public void setState(InterfaceState state) {
this.state = state;
}
public List<NetworkInterfaceEntity> getSubInterfaces() {
return subInterfaces;
}
public void setSubInterfaces(List<NetworkInterfaceEntity> subInterfaces) {
this.subInterfaces = subInterfaces;
}
public long getBytesSent() {
return bytesSent;
}
public void setBytesSent(long bytesSent) {
this.bytesSent = bytesSent;
}
public long getBytesRecived() {
return bytesRecived;
}
public void setBytesRecived(long bytesRecived) {
this.bytesRecived = bytesRecived;
}
#Id
private String interfaceId;
private String ipAddress;
private String netmask;
private String macAddress;
private String name;
private InterfaceState state;
#Relationship(type = "is_composed_of")
private List<NetworkInterfaceEntity> subInterfaces;
private long bytesSent;
private long bytesRecived;
}
When I now try to query the UnknownEntities via a Neo4j Crud Repository with a custom #Query Method, the UnknownEntities wont be nested with the necessary NetworkInterfaceObjects, even tough my query returns these.
public interface UnknownEntityRepository extends CrudRepository<UnknownEntity,String> {
#Query("MATCH (u:UnknownEntity)-[:is_composed_of]->(i:NetworkInterfaceEntity) WHERE i.ipAddress IN {0} WITH u as unknown MATCH p=(unknown)-[r*0..1]-() RETURN collect(unknown),nodes(p),rels(p)")
List<UnknownEntity> searchMachinesByIp(List<String> ipAddresses);
}
In this particular case the NetworkInterfaceEntities do not contain more subInterfaces, so I only want the NetworkInterfaceEntities that belong the the UnknownEntity. But when I use this Query I only get UnknownEntities where the NetworkInterfaceList is null. I even tried different Querys to no avail for example:
"MATCH p=(u:UnknownEntitie)-[:is_composed_of]-(n:NetworkInterfaceEntity) WHERE n.ipAddress in {0} RETURN collect(n),nodes(p),rels(p)".
My Question is, if what I want is even possible with SDN4 Data and if it is, how I can achieve this, Since my alternative is to query the database for every NetworkInterface separately, which I think is really ugly.
Any help would be much appreciated.

please try if returning the full path like this:
public interface UnknownEntityRepository extends CrudRepository<UnknownEntity,String> {
#Query("MATCH (u:UnknownEntity)-[:is_composed_of]->(i:NetworkInterfaceEntity) WHERE i.ipAddress IN {0} WITH u as unknown MATCH p=(unknown)-[r*0..1]-() RETURN p")
List<UnknownEntity> searchMachinesByIp(List<String> ipAddresses);
}
works for your. If not, try naming the objects in question, i.e. RETURN i as subInterfaces works for you.
Are you using Spring Data Neo4j 4 or 5? If you're on 4, consider the upgrade to 5 to be on a supported level.
Please let me know, if this helps.

what is the function of formparam annotation?

I have the code below:
public class RequestBaseFormParamTO extends BaseFormParamTO {
#FormParam("channelId")
private String channelId;
#FormParam("signatureString")
private String signatureString;
public String getChannelId() {
return channelId;
}
public void setChannelId(String channelId) {
this.channelId = channelId;
}
public String getSignatureString() {
return signatureString;
}
public void setSignatureString(String signatureString) {
this.signatureString = signatureString;
}
}
what's the function of #FormParam annotation, what I know the #FormParam is used to get the value from html but in this case, the form param not place in the services. so, what's the function? I want to understand in this code. thanks
this is the other code class:
public class BaseFormParamTO {
#FormParam("transactionId")
private String transactionId;
#FormParam("transactionTime")
private String transactionTime;
public String getTransactionId() {
return transactionId;
}
public void setTransactionId(String transactionId) {
this.transactionId = transactionId;
}
public String getTransactionTime() {
return transactionTime;
}
public void setTransactionTime(String transactionTime) {
this.transactionTime = transactionTime;
}
}

Object become null when converted to json

Here is the problem, when I send my object to server using retrofit I got it null. I'm doing this to create the json object:
HashMap<String, UserModel> map = new HashMap<>();
map.put("user", user);
But, when the json arrives in the server I got something like this:
{"user":null}
Then I printed ny json file with this line:
Log.d("TAG", new JSONObject(map).toString());
And I saw the same null object.
So, here is my question, Why is this happening? And how can I fix that?
Here goes some information about my project:
Retrofit version: 2.0.0
Retrofit serializer: jackson version 2.0.0
using also jackson to convert JodaTime version 2.4.0
here goes how I get retrofit instance:
public T buildServiceInstance(Class<T> clazz){
return new Retrofit.Builder().baseUrl(BuildConfig.API_HOST)
.addConverterFactory(JacksonConverterFactory.create())
.build().create(clazz);
}
I call that method here:
public static final IUserApi serviceInstance = new ApiBuildRequester<IUserApi>()
.buildServiceInstance(IUserApi.class);
Method declaration on interface IUserApi:
#POST("User.svc/Save")
Call<ResponseSaveUserApiModel> save(#Body HashMap<String, UserModel> map);
And at last, but I guess, not less important:
public class UserModel implements Parcelable {
private String idUser;
private String name;
private String email;
#JsonProperty("password")
private String safePassword;
private String salt;
private String phoneNumber;
private String facebookProfilePictureUrl;
private String facebookUserId;
public UserModel() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getIdUser() {
return idUser;
}
public void setIdUser(String idUser) {
this.idUser = idUser;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getSafePassword() {
return safePassword;
}
public void setSafePassword(String safePassword) {
this.safePassword = safePassword;
}
public String getPhoneNumber() {
return phoneNumber;
}
public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}
public String getFacebookProfilePictureUrl() {
return facebookProfilePictureUrl;
}
public void setFacebookProfilePictureUrl(String facebookProfilePictureUrl) {
this.facebookProfilePictureUrl = facebookProfilePictureUrl;
}
public String getFacebookUserId() {
return facebookUserId;
}
public void setFacebookUserId(String facebookUserId) {
this.facebookUserId = facebookUserId;
}
#Override
public int describeContents() {
return 0;
}
public UserModel(Parcel in) { // Deve estar na mesma ordem do "writeToParcel"
setIdUser(in.readString());
setName(in.readString());
setEmail(in.readString());
setSafePassword(in.readString());
setPhoneNumber(in.readString());
setFacebookProfilePictureUrl(in.readString());
setFacebookUserId(in.readString());
}
#Override
public void writeToParcel(Parcel dest, int flags) { //Deve estar na mesma ordem do construtor que recebe parcel
dest.writeString(idUser);
dest.writeString(name);
dest.writeString(email);
dest.writeString(safePassword);
dest.writeString(phoneNumber);
dest.writeString(facebookProfilePictureUrl);
dest.writeString(facebookUserId);
}
public static final Parcelable.Creator<UserModel> CREATOR = new Parcelable.Creator<UserModel>(){
#Override
public UserModel createFromParcel(Parcel source) {
return new UserModel(source);
}
#Override
public UserModel[] newArray(int size) {
return new UserModel[size];
}
};
public String getSalt() {
return salt;
}
public void setSalt(String salt) {
this.salt = salt;
}
}
Debug screen:

#Selvin and #cricket_007 You are the best!
I got this using your hint that my printing was wrong, and I found the solution.
I have two types of users in my app, facebook users or native users, two forms, but just one object, and here was the problem, when I sent facebook objects (complete) it worked fine, but when I tried to send native users, with some null properties, it crashed my serialization.
So I had to check every property before send it, it's just a workaround, but for now it's enough, thank you a lot folks!