Spring data repositories - performance issue - spring

Question

I'm using Spring , JPArepostories and hibernate, to save some entities to database.
My entities :
Users:
#Entity
#Table(name = "users")
public class User {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#Column(name = "CARDID",unique=true)
private String cardId;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="SUPPLIERUSERID", nullable = true)
#JsonIgnore
private SupplierUser supplierUser;
#Column(name = "NAME")
private String name;
#Column(name = "SURENAME")
private String sureName;
#Column(name = "ACTIVE")
private Boolean active;
#Column(name = "SMS")
private String sms;
#Column(name = "EMAIL")
private String email;
#OneToMany(mappedBy = "user", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
private List<Box> boxList = new ArrayList<Box>();
#OneToMany(mappedBy = "user", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
private List<Notification> notificationList = new ArrayList<Notification>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCardId() {
return cardId;
}
public void setCardId(String cardId) {
this.cardId = cardId;
}
public SupplierUser getSupplierUser() {
return supplierUser;
}
public void setSupplierUser(SupplierUser supplierUser) {
this.supplierUser = supplierUser;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSureName() {
return sureName;
}
public void setSureName(String sureName) {
this.sureName = sureName;
}
public Boolean getActive() {
return active;
}
public void setActive(Boolean active) {
this.active = active;
}
public String getSms() {
return sms;
}
public void setSms(String sms) {
this.sms = sms;
}
public List<Box> getBoxList() {
return boxList;
}
public void setBoxList(List<Box> boxList) {
this.boxList = boxList;
}
public List<Notification> getNotificationList() {
return notificationList;
}
public void setNotificationList(List<Notification> notificationList) {
this.notificationList = notificationList;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
Users have boxes:
#Entity
#Table(name = "boxes")
public class Box {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="USERID", nullable = true)
#JsonIgnore
private User user;
#Column(name = "BOXNUMBER",unique=true)
private int boxNumber;
#Column(name = "MODBUSADDRESS")
private int modbusAddress;
#Column(name = "MODBUSREGISTER")
private int modbusRegister;
#Column(name = "STATE")
private String state;
#OneToMany(mappedBy = "box", fetch =FetchType.EAGER,cascade = CascadeType.ALL)
private List<Transaction> transactionsList = new ArrayList<Transaction>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public int getModbusAddress() {
return modbusAddress;
}
public void setModbusAddress(int modbusAddress) {
this.modbusAddress = modbusAddress;
}
public int getModbusRegister() {
return modbusRegister;
}
public void setModbusRegister(int modbusRegister) {
this.modbusRegister = modbusRegister;
}
public List<Transaction> getTransactionsList() {
return transactionsList;
}
public void setTransactionsList(List<Transaction> transactionsList) {
this.transactionsList = transactionsList;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public int getBoxNumber() {
return boxNumber;
}
public void setBoxNumber(int boxNumber) {
this.boxNumber = boxNumber;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
}
Boxes have transactions:
#Entity
#Table(name = "transactions")
public class Transaction {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="BOXID", nullable = true)
#JsonIgnore
private Box box;
#Column(name = "TYPE")
private String type;
#Column(name = "SUPPLIERUSERCARDID")
private String supplierUserCardId;
#Column(name = "DATE")
#Temporal(TemporalType.TIMESTAMP)
private Date date;
#OneToMany(mappedBy = "transaction", fetch = FetchType.EAGER,cascade = CascadeType.ALL)
private List<Notification> notificationsList = new ArrayList<Notification>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Box getBox() {
return box;
}
public void setBox(Box box) {
this.box = box;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public String getSupplierUserCardId() {
return supplierUserCardId;
}
public void setSupplierUserCardId(String supplierUserCardId) {
this.supplierUserCardId = supplierUserCardId;
}
public List<Notification> getNotificationsList() {
return notificationsList;
}
public void setNotificationsList(List<Notification> notificationsList) {
this.notificationsList = notificationsList;
}
}
And transaction have notifications (notification refer as well to user):
#Entity
#Table(name = "notifications")
public class Notification {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="TRANSACTIONID", nullable = true)
#JsonIgnore
private Transaction transaction;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="USERID", nullable = true)
#JsonIgnore
private User user;
#Column(name = "TYPE")
private String type;
#Temporal(TemporalType.TIMESTAMP)
#Column(name = "CREATED")
private Date created;
#Temporal(TemporalType.TIMESTAMP)
#Column(name = "SENDED")
private Date sended;
#Column(name = "RETRIES")
private Long retries;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getCreated() {
return created;
}
public void setCreated(Date created) {
this.created = created;
}
public Date getSended() {
return sended;
}
public void setSended(Date sended) {
this.sended = sended;
}
public Long getRetries() {
return retries;
}
public void setRetries(Long retries) {
this.retries = retries;
}
public Transaction getTransaction() {
return transaction;
}
public void setTransaction(Transaction transaction) {
this.transaction = transaction;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
And my question is - what I'm doing wrong, because following method for list with 150 boxes inside takes about 20 seconds to finish.
public void changeBoxOwners(ArrayList<Box> boxList){
String id = theSoftwareCore.getSupplierUser().getCardId();
ArrayList<Box> boxToSave = new ArrayList<Box>();
for (Box box : boxList){
Box existingBox = theSoftwareCore.boxServiceImp.findByBoxNumber(box.getBoxNumber());
existingBox.setState("full");
User user = theSoftwareCore.userServiceImp.findOneByCardId(box.getUser().getCardId());
//deleting not sent notifications
for (Transaction trans : existingBox.getTransactionsList()){
for (Notification notif: trans.getNotificationsList()){
if (notif.getSended()==null){
notif.setSended(new Date(0));
}
}
}
Transaction transaction = new Transaction();
transaction.setType("in");
transaction.setSupplierUserCardId(id);
transaction.setDate(new Date());
transaction.setBox(existingBox);
Notification notification = new Notification();
notification.setCreated(new Date());
notification.setType("smsTakeYourStaff");
notification.setTransaction(transaction);
notification.setUser(user);
existingBox.setUser(user);
transaction.getNotificationsList().add(notification);
existingBox.getTransactionsList().add(transaction);
boxToSave.add(existingBox);
}
System.out.println("Start saving" + new Date());
theSoftwareCore.boxServiceImp.saveAll(boxToSave);
System.out.println("End " + new Date());
}
Thanks for your time in advance.