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hibernate cascade solution #1064

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hibernate cascade solution #1064

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52 changes: 48 additions & 4 deletions src/main/java/core/basesyntax/dao/impl/CommentDaoImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,11 @@

import core.basesyntax.dao.CommentDao;
import core.basesyntax.model.Comment;
import jakarta.persistence.EntityNotFoundException;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

public class CommentDaoImpl extends AbstractDao implements CommentDao {
public CommentDaoImpl(SessionFactory sessionFactory) {
Expand All @@ -12,21 +15,62 @@ public CommentDaoImpl(SessionFactory sessionFactory) {

@Override
public Comment create(Comment entity) {
return null;
Session session = null;
Transaction transaction = null;
try {
session = factory.openSession();
transaction = session.beginTransaction();
session.persist(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Can't note save Comment to the DB" + entity, e);
} finally {
if (session != null) {
session.close();
}
}
return entity;
}

@Override
public Comment get(Long id) {
return null;
try (Session session = factory.openSession()) {
return session.get(Comment.class, id);
} catch (Exception e) {
throw new EntityNotFoundException("Can't not get comment by id: " + id, e);
}
}

@Override
public List<Comment> getAll() {
return null;
Session session = null;
try {
session = factory.openSession();
return session.createQuery("from Comment", Comment.class).list();
} catch (Exception e) {
throw new RuntimeException("Failed to get all Comment", e);
} finally {
if (session != null) {
session.close();
}
}
}

@Override
public void remove(Comment entity) {

Transaction transaction = null;
try (Session session = factory.openSession()) {
transaction = session.beginTransaction();
session.remove(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Can't not remove the Comment: " + entity, e);
}
}
}
52 changes: 48 additions & 4 deletions src/main/java/core/basesyntax/dao/impl/MessageDaoImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,11 @@

import core.basesyntax.dao.MessageDao;
import core.basesyntax.model.Message;
import jakarta.persistence.EntityNotFoundException;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

public class MessageDaoImpl extends AbstractDao implements MessageDao {
public MessageDaoImpl(SessionFactory sessionFactory) {
Expand All @@ -12,21 +15,62 @@ public MessageDaoImpl(SessionFactory sessionFactory) {

@Override
public Message create(Message entity) {
return null;
Session session = null;
Transaction transaction = null;
try {
session = factory.openSession();
transaction = session.beginTransaction();
session.persist(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Can't not save Massage to the DB: " + entity, e);
} finally {
if (session != null) {
session.close();
}
}
return entity;
}

@Override
public Message get(Long id) {
return null;
try (Session session = factory.openSession()) {
return session.get(Message.class, id);
} catch (Exception e) {
throw new EntityNotFoundException("Can't not get Message from DB: " + id, e);
}
}

@Override
public List<Message> getAll() {
return null;
Session session = null;
try {
session = factory.openSession();
return session.createQuery("from Message", Message.class).list();
} catch (Exception e) {
throw new RuntimeException("Failed to get all Message", e);
} finally {
if (session != null) {
session.close();
}
}
}

@Override
public void remove(Message entity) {

Transaction transaction = null;
try (Session session = factory.openSession()) {
transaction = session.beginTransaction();
session.remove(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Failed to remove Message from Db: " + entity, e);
}
}
}
28 changes: 26 additions & 2 deletions src/main/java/core/basesyntax/dao/impl/MessageDetailsDaoImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,10 @@

import core.basesyntax.dao.MessageDetailsDao;
import core.basesyntax.model.MessageDetails;
import jakarta.persistence.EntityNotFoundException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

public class MessageDetailsDaoImpl extends AbstractDao implements MessageDetailsDao {
public MessageDetailsDaoImpl(SessionFactory sessionFactory) {
Expand All @@ -11,11 +14,32 @@ public MessageDetailsDaoImpl(SessionFactory sessionFactory) {

@Override
public MessageDetails create(MessageDetails entity) {
return null;
Session session = null;
Transaction transaction = null;
try {
session = factory.openSession();
transaction = session.beginTransaction();
session.persist(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Can't not save MessageDetails: " + entity, e);
} finally {
if (session != null) {
session.close();
}
}
return entity;
}

@Override
public MessageDetails get(Long id) {
return null;
try (Session session = factory.openSession()) {
return session.get(MessageDetails.class, id);
} catch (Exception e) {
throw new EntityNotFoundException("Can't not get MessageDetails by id: " + id, e);
}
}
}
40 changes: 37 additions & 3 deletions src/main/java/core/basesyntax/dao/impl/SmileDaoImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,11 @@

import core.basesyntax.dao.SmileDao;
import core.basesyntax.model.Smile;
import jakarta.persistence.EntityNotFoundException;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

public class SmileDaoImpl extends AbstractDao implements SmileDao {
public SmileDaoImpl(SessionFactory sessionFactory) {
Expand All @@ -12,16 +15,47 @@ public SmileDaoImpl(SessionFactory sessionFactory) {

@Override
public Smile create(Smile entity) {
return null;
Session session = null;
Transaction transaction = null;
try {
session = factory.openSession();
transaction = session.beginTransaction();
session.persist(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Can't not save smile:" + entity, e);
} finally {
if (session != null) {
session.close();
}
}
return entity;
}

@Override
public Smile get(Long id) {
return null;
try (Session session = factory.openSession()) {
return session.get(Smile.class, id);
} catch (Exception e) {
throw new EntityNotFoundException("Can't teg smile by id: " + id, e);
}
}

@Override
public List<Smile> getAll() {
return null;
Session session = null;
try {
session = factory.openSession();
return session.createQuery("from Smile", Smile.class).list();
} catch (Exception e) {
throw new RuntimeException("Failed to get all smiles", e);
} finally {
if (session != null) {
session.close();
}
}
}
}
54 changes: 50 additions & 4 deletions src/main/java/core/basesyntax/dao/impl/UserDaoImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,11 @@

import core.basesyntax.dao.UserDao;
import core.basesyntax.model.User;
import jakarta.persistence.EntityNotFoundException;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

public class UserDaoImpl extends AbstractDao implements UserDao {
public UserDaoImpl(SessionFactory sessionFactory) {
Expand All @@ -12,21 +15,64 @@ public UserDaoImpl(SessionFactory sessionFactory) {

@Override
public User create(User entity) {
return null;
Session session = null;
Transaction transaction = null;
try {
session = factory.openSession();
transaction = session.beginTransaction();
session.persist(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Can't save user to the DB:"
+ entity, e);
} finally {
if (session != null) {
session.close();
}
}
return entity;
}

@Override
public User get(Long id) {
return null;
try (Session session = factory.openSession()) {
return session.get(User.class,id);
} catch (Exception e) {
throw new EntityNotFoundException("Can't get user by id: "
+ id, e);
}
}

@Override
public List<User> getAll() {
return null;
Session session = null;
try {
session = factory.openSession();
return session.createQuery("from User", User.class).list();
} catch (Exception e) {
throw new RuntimeException("Failed to get all users", e);
} finally {
if (session != null) {
session.close();
}
}
}

@Override
public void remove(User entity) {

Transaction transaction = null;
try (Session session = factory.openSession()) {
transaction = session.beginTransaction();
session.remove(entity);
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new RuntimeException("Failed to remove user from DB: " + entity, e);
}
}
}
8 changes: 8 additions & 0 deletions src/main/java/core/basesyntax/model/Comment.java
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@@ -1,15 +1,23 @@
package core.basesyntax.model;

import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.ManyToMany;
import jakarta.persistence.Table;
import java.util.List;

@Entity
@Table(name = "comments")
public class Comment {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String content;
@ManyToMany
@JoinColumn(name = "comment_id")
private List<Smile> smiles;

public Long getId() {
Expand Down
18 changes: 18 additions & 0 deletions src/main/java/core/basesyntax/model/Message.java
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Original file line number Diff line number Diff line change
@@ -1,8 +1,26 @@
package core.basesyntax.model;

import jakarta.persistence.CascadeType;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.JoinTable;
import jakarta.persistence.OneToOne;
import jakarta.persistence.Table;

@Entity
@Table(name = "messages")
public class Message {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String content;
@OneToOne(cascade = {CascadeType.PERSIST, CascadeType.REMOVE})
@JoinTable(name = "message_details",
joinColumns = @JoinColumn(name = "message"),
inverseJoinColumns = @JoinColumn(name = "details"))
private MessageDetails messageDetails;

public Long getId() {
Expand Down
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