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Reformat rest of the design patterns - Issue #224

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This commit is contained in:
Ankur Kaushal
2015-11-01 21:29:13 -05:00
parent 449340bd2b
commit 306b1f3d31
337 changed files with 6744 additions and 6851 deletions
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300
service-layer/src/main/java/com/iluwatar/servicelayer/app/App.java
View File

@@ -16,161 +16,163 @@ import com.iluwatar.servicelayer.wizard.WizardDaoImpl;
/**
* Service layer defines an application's boundary with a layer of services that establishes
* a set of available operations and coordinates the application's response in each operation.
* Service layer defines an application's boundary with a layer of services that establishes a set
* of available operations and coordinates the application's response in each operation.
* <p>
* Enterprise applications typically require different kinds of interfaces to the data
* they store and the logic they implement: data loaders, user interfaces, integration gateways,
* and others. Despite their different purposes, these interfaces often need common interactions
* with the application to access and manipulate its data and invoke its business logic. The
* interactions may be complex, involving transactions across multiple resources and the
* coordination of several responses to an action. Encoding the logic of the interactions
* separately in each interface causes a lot of duplication.
* Enterprise applications typically require different kinds of interfaces to the data they store
* and the logic they implement: data loaders, user interfaces, integration gateways, and others.
* Despite their different purposes, these interfaces often need common interactions with the
* application to access and manipulate its data and invoke its business logic. The interactions may
* be complex, involving transactions across multiple resources and the coordination of several
* responses to an action. Encoding the logic of the interactions separately in each interface
* causes a lot of duplication.
* <p>
* The example application demonstrates interactions between a client ({@link App}) and a service
* ({@link MagicService}). The service is implemented with 3-layer architecture (entity, dao, service).
* For persistence the example uses in-memory H2 database which is populated on each application
* startup.
* The example application demonstrates interactions between a client ({@link App}) and a service (
* {@link MagicService}). The service is implemented with 3-layer architecture (entity, dao,
* service). For persistence the example uses in-memory H2 database which is populated on each
* application startup.
*
*/
public class App {
/**
* Program entry point
* @param args command line args
*/
public static void main( String[] args ) {
// populate the in-memory database
initData();
// query the data using the service
queryData();
/**
* Program entry point
*
* @param args command line args
*/
public static void main(String[] args) {
// populate the in-memory database
initData();
// query the data using the service
queryData();
}
public static void initData() {
// spells
Spell spell1 = new Spell("Ice dart");
Spell spell2 = new Spell("Invisibility");
Spell spell3 = new Spell("Stun bolt");
Spell spell4 = new Spell("Confusion");
Spell spell5 = new Spell("Darkness");
Spell spell6 = new Spell("Fireball");
Spell spell7 = new Spell("Enchant weapon");
Spell spell8 = new Spell("Rock armour");
Spell spell9 = new Spell("Light");
Spell spell10 = new Spell("Bee swarm");
Spell spell11 = new Spell("Haste");
Spell spell12 = new Spell("Levitation");
Spell spell13 = new Spell("Magic lock");
Spell spell14 = new Spell("Summon hell bat");
Spell spell15 = new Spell("Water walking");
Spell spell16 = new Spell("Magic storm");
Spell spell17 = new Spell("Entangle");
SpellDao spellDao = new SpellDaoImpl();
spellDao.persist(spell1);
spellDao.persist(spell2);
spellDao.persist(spell3);
spellDao.persist(spell4);
spellDao.persist(spell5);
spellDao.persist(spell6);
spellDao.persist(spell7);
spellDao.persist(spell8);
spellDao.persist(spell9);
spellDao.persist(spell10);
spellDao.persist(spell11);
spellDao.persist(spell12);
spellDao.persist(spell13);
spellDao.persist(spell14);
spellDao.persist(spell15);
spellDao.persist(spell16);
spellDao.persist(spell17);
// spellbooks
SpellbookDao spellbookDao = new SpellbookDaoImpl();
Spellbook spellbook1 = new Spellbook("Book of Orgymon");
spellbookDao.persist(spellbook1);
spellbook1.addSpell(spell1);
spellbook1.addSpell(spell2);
spellbook1.addSpell(spell3);
spellbook1.addSpell(spell4);
spellbookDao.merge(spellbook1);
Spellbook spellbook2 = new Spellbook("Book of Aras");
spellbookDao.persist(spellbook2);
spellbook2.addSpell(spell5);
spellbook2.addSpell(spell6);
spellbookDao.merge(spellbook2);
Spellbook spellbook3 = new Spellbook("Book of Kritior");
spellbookDao.persist(spellbook3);
spellbook3.addSpell(spell7);
spellbook3.addSpell(spell8);
spellbook3.addSpell(spell9);
spellbookDao.merge(spellbook3);
Spellbook spellbook4 = new Spellbook("Book of Tamaex");
spellbookDao.persist(spellbook4);
spellbook4.addSpell(spell10);
spellbook4.addSpell(spell11);
spellbook4.addSpell(spell12);
spellbookDao.merge(spellbook4);
Spellbook spellbook5 = new Spellbook("Book of Idores");
spellbookDao.persist(spellbook5);
spellbook5.addSpell(spell13);
spellbookDao.merge(spellbook5);
Spellbook spellbook6 = new Spellbook("Book of Opaen");
spellbookDao.persist(spellbook6);
spellbook6.addSpell(spell14);
spellbook6.addSpell(spell15);
spellbookDao.merge(spellbook6);
Spellbook spellbook7 = new Spellbook("Book of Kihione");
spellbookDao.persist(spellbook7);
spellbook7.addSpell(spell16);
spellbook7.addSpell(spell17);
spellbookDao.merge(spellbook7);
// wizards
WizardDao wizardDao = new WizardDaoImpl();
Wizard wizard1 = new Wizard("Aderlard Boud");
wizardDao.persist(wizard1);
wizard1.addSpellbook(spellbookDao.findByName("Book of Orgymon"));
wizard1.addSpellbook(spellbookDao.findByName("Book of Aras"));
wizardDao.merge(wizard1);
Wizard wizard2 = new Wizard("Anaxis Bajraktari");
wizardDao.persist(wizard2);
wizard2.addSpellbook(spellbookDao.findByName("Book of Kritior"));
wizard2.addSpellbook(spellbookDao.findByName("Book of Tamaex"));
wizardDao.merge(wizard2);
Wizard wizard3 = new Wizard("Xuban Munoa");
wizardDao.persist(wizard3);
wizard3.addSpellbook(spellbookDao.findByName("Book of Idores"));
wizard3.addSpellbook(spellbookDao.findByName("Book of Opaen"));
wizardDao.merge(wizard3);
Wizard wizard4 = new Wizard("Blasius Dehooge");
wizardDao.persist(wizard4);
wizard4.addSpellbook(spellbookDao.findByName("Book of Kihione"));
wizardDao.merge(wizard4);
}
public static void queryData() {
MagicService service =
new MagicServiceImpl(new WizardDaoImpl(), new SpellbookDaoImpl(), new SpellDaoImpl());
System.out.println("Enumerating all wizards");
for (Wizard w : service.findAllWizards()) {
System.out.println(w.getName());
}
public static void initData() {
// spells
Spell spell1 = new Spell("Ice dart");
Spell spell2 = new Spell("Invisibility");
Spell spell3 = new Spell("Stun bolt");
Spell spell4 = new Spell("Confusion");
Spell spell5 = new Spell("Darkness");
Spell spell6 = new Spell("Fireball");
Spell spell7 = new Spell("Enchant weapon");
Spell spell8 = new Spell("Rock armour");
Spell spell9 = new Spell("Light");
Spell spell10 = new Spell("Bee swarm");
Spell spell11 = new Spell("Haste");
Spell spell12 = new Spell("Levitation");
Spell spell13 = new Spell("Magic lock");
Spell spell14 = new Spell("Summon hell bat");
Spell spell15 = new Spell("Water walking");
Spell spell16 = new Spell("Magic storm");
Spell spell17 = new Spell("Entangle");
SpellDao spellDao = new SpellDaoImpl();
spellDao.persist(spell1);
spellDao.persist(spell2);
spellDao.persist(spell3);
spellDao.persist(spell4);
spellDao.persist(spell5);
spellDao.persist(spell6);
spellDao.persist(spell7);
spellDao.persist(spell8);
spellDao.persist(spell9);
spellDao.persist(spell10);
spellDao.persist(spell11);
spellDao.persist(spell12);
spellDao.persist(spell13);
spellDao.persist(spell14);
spellDao.persist(spell15);
spellDao.persist(spell16);
spellDao.persist(spell17);
// spellbooks
SpellbookDao spellbookDao = new SpellbookDaoImpl();
Spellbook spellbook1 = new Spellbook("Book of Orgymon");
spellbookDao.persist(spellbook1);
spellbook1.addSpell(spell1);
spellbook1.addSpell(spell2);
spellbook1.addSpell(spell3);
spellbook1.addSpell(spell4);
spellbookDao.merge(spellbook1);
Spellbook spellbook2 = new Spellbook("Book of Aras");
spellbookDao.persist(spellbook2);
spellbook2.addSpell(spell5);
spellbook2.addSpell(spell6);
spellbookDao.merge(spellbook2);
Spellbook spellbook3 = new Spellbook("Book of Kritior");
spellbookDao.persist(spellbook3);
spellbook3.addSpell(spell7);
spellbook3.addSpell(spell8);
spellbook3.addSpell(spell9);
spellbookDao.merge(spellbook3);
Spellbook spellbook4 = new Spellbook("Book of Tamaex");
spellbookDao.persist(spellbook4);
spellbook4.addSpell(spell10);
spellbook4.addSpell(spell11);
spellbook4.addSpell(spell12);
spellbookDao.merge(spellbook4);
Spellbook spellbook5 = new Spellbook("Book of Idores");
spellbookDao.persist(spellbook5);
spellbook5.addSpell(spell13);
spellbookDao.merge(spellbook5);
Spellbook spellbook6 = new Spellbook("Book of Opaen");
spellbookDao.persist(spellbook6);
spellbook6.addSpell(spell14);
spellbook6.addSpell(spell15);
spellbookDao.merge(spellbook6);
Spellbook spellbook7 = new Spellbook("Book of Kihione");
spellbookDao.persist(spellbook7);
spellbook7.addSpell(spell16);
spellbook7.addSpell(spell17);
spellbookDao.merge(spellbook7);
// wizards
WizardDao wizardDao = new WizardDaoImpl();
Wizard wizard1 = new Wizard("Aderlard Boud");
wizardDao.persist(wizard1);
wizard1.addSpellbook(spellbookDao.findByName("Book of Orgymon"));
wizard1.addSpellbook(spellbookDao.findByName("Book of Aras"));
wizardDao.merge(wizard1);
Wizard wizard2 = new Wizard("Anaxis Bajraktari");
wizardDao.persist(wizard2);
wizard2.addSpellbook(spellbookDao.findByName("Book of Kritior"));
wizard2.addSpellbook(spellbookDao.findByName("Book of Tamaex"));
wizardDao.merge(wizard2);
Wizard wizard3 = new Wizard("Xuban Munoa");
wizardDao.persist(wizard3);
wizard3.addSpellbook(spellbookDao.findByName("Book of Idores"));
wizard3.addSpellbook(spellbookDao.findByName("Book of Opaen"));
wizardDao.merge(wizard3);
Wizard wizard4 = new Wizard("Blasius Dehooge");
wizardDao.persist(wizard4);
wizard4.addSpellbook(spellbookDao.findByName("Book of Kihione"));
wizardDao.merge(wizard4);
System.out.println("Enumerating all spellbooks");
for (Spellbook s : service.findAllSpellbooks()) {
System.out.println(s.getName());
}
public static void queryData() {
MagicService service = new MagicServiceImpl(new WizardDaoImpl(), new SpellbookDaoImpl(), new SpellDaoImpl());
System.out.println("Enumerating all wizards");
for (Wizard w: service.findAllWizards()) {
System.out.println(w.getName());
}
System.out.println("Enumerating all spellbooks");
for (Spellbook s: service.findAllSpellbooks()) {
System.out.println(s.getName());
}
System.out.println("Enumerating all spells");
for (Spell s: service.findAllSpells()) {
System.out.println(s.getName());
}
System.out.println("Find wizards with spellbook 'Book of Idores'");
List<Wizard> wizardsWithSpellbook = service.findWizardsWithSpellbook("Book of Idores");
for (Wizard w: wizardsWithSpellbook) {
System.out.println(String.format("%s has 'Book of Idores'", w.getName()));
}
System.out.println("Find wizards with spell 'Fireball'");
List<Wizard> wizardsWithSpell = service.findWizardsWithSpell("Fireball");
for (Wizard w: wizardsWithSpell) {
System.out.println(String.format("%s has 'Fireball'", w.getName()));
}
System.out.println("Enumerating all spells");
for (Spell s : service.findAllSpells()) {
System.out.println(s.getName());
}
System.out.println("Find wizards with spellbook 'Book of Idores'");
List<Wizard> wizardsWithSpellbook = service.findWizardsWithSpellbook("Book of Idores");
for (Wizard w : wizardsWithSpellbook) {
System.out.println(String.format("%s has 'Book of Idores'", w.getName()));
}
System.out.println("Find wizards with spell 'Fireball'");
List<Wizard> wizardsWithSpell = service.findWizardsWithSpell("Fireball");
for (Wizard w : wizardsWithSpell) {
System.out.println(String.format("%s has 'Fireball'", w.getName()));
}
}
}

8
service-layer/src/main/java/com/iluwatar/servicelayer/common/BaseEntity.java
View File

@@ -11,9 +11,9 @@ import javax.persistence.Version;
*
*/
@MappedSuperclass
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
public class BaseEntity {
@Version
private Long version;
@Version
private Long version;
}

18
service-layer/src/main/java/com/iluwatar/servicelayer/common/Dao.java
View File

@@ -11,13 +11,13 @@ import java.util.List;
*/
public interface Dao<E extends BaseEntity> {
E find(Long id);
void persist(E entity);
E merge(E entity);
void delete(E entity);
List<E> findAll();
E find(Long id);
void persist(E entity);
E merge(E entity);
void delete(E entity);
List<E> findAll();
}

205
service-layer/src/main/java/com/iluwatar/servicelayer/common/DaoBaseImpl.java
View File

@@ -18,110 +18,105 @@ import com.iluwatar.servicelayer.hibernate.HibernateUtil;
*
*/
public abstract class DaoBaseImpl<E extends BaseEntity> implements Dao<E> {
@SuppressWarnings("unchecked")
protected Class<E> persistentClass = (Class<E>) ((ParameterizedType) getClass()
.getGenericSuperclass()).getActualTypeArguments()[0];
protected Session getSession() {
return HibernateUtil.getSessionFactory().openSession();
}
@Override
public E find(Long id) {
Session session = getSession();
Transaction tx = null;
E result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.idEq(id));
result = (E) criteria.uniqueResult();
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
return result;
}
@Override
public void persist(E entity) {
Session session = getSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
session.persist(entity);
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
}
@Override
public E merge(E entity) {
Session session = getSession();
Transaction tx = null;
E result = null;
try {
tx = session.beginTransaction();
result = (E) session.merge(entity);
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
return result;
}
@Override
public void delete(E entity) {
Session session = getSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
session.delete(entity);
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
}
@Override
public List<E> findAll() {
Session session = getSession();
Transaction tx = null;
List<E> result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
result = criteria.list();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
return result;
}
@SuppressWarnings("unchecked")
protected Class<E> persistentClass = (Class<E>) ((ParameterizedType) getClass()
.getGenericSuperclass()).getActualTypeArguments()[0];
protected Session getSession() {
return HibernateUtil.getSessionFactory().openSession();
}
@Override
public E find(Long id) {
Session session = getSession();
Transaction tx = null;
E result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.idEq(id));
result = (E) criteria.uniqueResult();
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
return result;
}
@Override
public void persist(E entity) {
Session session = getSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
session.persist(entity);
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
}
@Override
public E merge(E entity) {
Session session = getSession();
Transaction tx = null;
E result = null;
try {
tx = session.beginTransaction();
result = (E) session.merge(entity);
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
return result;
}
@Override
public void delete(E entity) {
Session session = getSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
session.delete(entity);
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
}
@Override
public List<E> findAll() {
Session session = getSession();
Transaction tx = null;
List<E> result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
result = criteria.list();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
return result;
}
}

40
service-layer/src/main/java/com/iluwatar/servicelayer/hibernate/HibernateUtil.java
View File

@@ -14,27 +14,25 @@ import com.iluwatar.servicelayer.wizard.Wizard;
*/
public class HibernateUtil {
private static final SessionFactory sessionFactory;
private static final SessionFactory sessionFactory;
static {
try {
sessionFactory = new Configuration()
.addAnnotatedClass(Wizard.class)
.addAnnotatedClass(Spellbook.class)
.addAnnotatedClass(Spell.class)
.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect")
.setProperty("hibernate.connection.url", "jdbc:h2:mem:test;DB_CLOSE_DELAY=-1")
.setProperty("hibernate.current_session_context_class", "thread")
.setProperty("hibernate.show_sql", "true")
.setProperty("hibernate.hbm2ddl.auto", "create-drop")
.buildSessionFactory();
} catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
static {
try {
sessionFactory =
new Configuration().addAnnotatedClass(Wizard.class).addAnnotatedClass(Spellbook.class)
.addAnnotatedClass(Spell.class)
.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect")
.setProperty("hibernate.connection.url", "jdbc:h2:mem:test;DB_CLOSE_DELAY=-1")
.setProperty("hibernate.current_session_context_class", "thread")
.setProperty("hibernate.show_sql", "true")
.setProperty("hibernate.hbm2ddl.auto", "create-drop").buildSessionFactory();
} catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}

12
service-layer/src/main/java/com/iluwatar/servicelayer/magic/MagicService.java
View File

@@ -14,13 +14,13 @@ import com.iluwatar.servicelayer.wizard.Wizard;
*/
public interface MagicService {
List<Wizard> findAllWizards();
List<Wizard> findAllWizards();
List<Spellbook> findAllSpellbooks();
List<Spell> findAllSpells();
List<Spellbook> findAllSpellbooks();
List<Wizard> findWizardsWithSpellbook(String name);
List<Spell> findAllSpells();
List<Wizard> findWizardsWithSpell(String name);
List<Wizard> findWizardsWithSpellbook(String name);
List<Wizard> findWizardsWithSpell(String name);
}

64
service-layer/src/main/java/com/iluwatar/servicelayer/magic/MagicServiceImpl.java
View File

@@ -16,42 +16,42 @@ import com.iluwatar.servicelayer.wizard.WizardDao;
*
*/
public class MagicServiceImpl implements MagicService {
private WizardDao wizardDao;
private SpellbookDao spellbookDao;
private SpellDao spellDao;
public MagicServiceImpl(WizardDao wizardDao, SpellbookDao spellbookDao, SpellDao spellDao) {
this.wizardDao = wizardDao;
this.spellbookDao = spellbookDao;
this.spellDao = spellDao;
}
private WizardDao wizardDao;
private SpellbookDao spellbookDao;
private SpellDao spellDao;
@Override
public List<Wizard> findAllWizards() {
return wizardDao.findAll();
}
public MagicServiceImpl(WizardDao wizardDao, SpellbookDao spellbookDao, SpellDao spellDao) {
this.wizardDao = wizardDao;
this.spellbookDao = spellbookDao;
this.spellDao = spellDao;
}
@Override
public List<Spellbook> findAllSpellbooks() {
return spellbookDao.findAll();
}
@Override
public List<Wizard> findAllWizards() {
return wizardDao.findAll();
}
@Override
public List<Spell> findAllSpells() {
return spellDao.findAll();
}
@Override
public List<Spellbook> findAllSpellbooks() {
return spellbookDao.findAll();
}
@Override
public List<Wizard> findWizardsWithSpellbook(String name) {
Spellbook spellbook = spellbookDao.findByName(name);
return new ArrayList<Wizard>(spellbook.getWizards());
}
@Override
public List<Spell> findAllSpells() {
return spellDao.findAll();
}
@Override
public List<Wizard> findWizardsWithSpell(String name) {
Spell spell = spellDao.findByName(name);
Spellbook spellbook = spell.getSpellbook();
return new ArrayList<Wizard>(spellbook.getWizards());
}
@Override
public List<Wizard> findWizardsWithSpellbook(String name) {
Spellbook spellbook = spellbookDao.findByName(name);
return new ArrayList<Wizard>(spellbook.getWizards());
}
@Override
public List<Wizard> findWizardsWithSpell(String name) {
Spell spell = spellDao.findByName(name);
Spellbook spellbook = spell.getSpellbook();
return new ArrayList<Wizard>(spellbook.getWizards());
}
}

85
service-layer/src/main/java/com/iluwatar/servicelayer/spell/Spell.java
View File

@@ -17,54 +17,53 @@ import com.iluwatar.servicelayer.spellbook.Spellbook;
*
*/
@Entity
@Table(name="SPELL")
@Table(name = "SPELL")
public class Spell extends BaseEntity {
private String name;
public Spell() {
}
public Spell(String name) {
this();
this.name = name;
}
@Id
@GeneratedValue
@Column(name = "SPELL_ID")
private Long id;
private String name;
public Long getId() {
return id;
}
public Spell() {}
public void setId(Long id) {
this.id = id;
}
@ManyToOne
@JoinColumn(name="SPELLBOOK_ID_FK", referencedColumnName="SPELLBOOK_ID")
private Spellbook spellbook;
public String getName() {
return name;
}
public Spell(String name) {
this();
this.name = name;
}
public void setName(String name) {
this.name = name;
}
public Spellbook getSpellbook() {
return spellbook;
}
@Id
@GeneratedValue
@Column(name = "SPELL_ID")
private Long id;
public void setSpellbook(Spellbook spellbook) {
this.spellbook = spellbook;
}
public Long getId() {
return id;
}
@Override
public String toString() {
return name;
}
public void setId(Long id) {
this.id = id;
}
@ManyToOne
@JoinColumn(name = "SPELLBOOK_ID_FK", referencedColumnName = "SPELLBOOK_ID")
private Spellbook spellbook;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Spellbook getSpellbook() {
return spellbook;
}
public void setSpellbook(Spellbook spellbook) {
this.spellbook = spellbook;
}
@Override
public String toString() {
return name;
}
}

4
service-layer/src/main/java/com/iluwatar/servicelayer/spell/SpellDao.java
View File

@@ -8,7 +8,7 @@ import com.iluwatar.servicelayer.common.Dao;
*
*/
public interface SpellDao extends Dao<Spell> {
Spell findByName(String name);
Spell findByName(String name);
}

43
service-layer/src/main/java/com/iluwatar/servicelayer/spell/SpellDaoImpl.java
View File

@@ -14,26 +14,25 @@ import com.iluwatar.servicelayer.common.DaoBaseImpl;
*/
public class SpellDaoImpl extends DaoBaseImpl<Spell> implements SpellDao {
@Override
public Spell findByName(String name) {
Session session = getSession();
Transaction tx = null;
Spell result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.eq("name", name));
result = (Spell) criteria.uniqueResult();
result.getSpellbook().getWizards().size();
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
return result;
}
@Override
public Spell findByName(String name) {
Session session = getSession();
Transaction tx = null;
Spell result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.eq("name", name));
result = (Spell) criteria.uniqueResult();
result.getSpellbook().getWizards().size();
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
return result;
}
}

110
service-layer/src/main/java/com/iluwatar/servicelayer/spellbook/Spellbook.java
View File

@@ -22,71 +22,71 @@ import com.iluwatar.servicelayer.wizard.Wizard;
*
*/
@Entity
@Table(name="SPELLBOOK")
@Table(name = "SPELLBOOK")
public class Spellbook extends BaseEntity {
public Spellbook() {
spells = new HashSet<Spell>();
wizards = new HashSet<Wizard>();
}
public Spellbook(String name) {
this();
this.name = name;
}
@Id
@GeneratedValue
@Column(name = "SPELLBOOK_ID")
private Long id;
public Spellbook() {
spells = new HashSet<Spell>();
wizards = new HashSet<Wizard>();
}
public Long getId() {
return id;
}
public Spellbook(String name) {
this();
this.name = name;
}
public void setId(Long id) {
this.id = id;
}
private String name;
@Id
@GeneratedValue
@Column(name = "SPELLBOOK_ID")
private Long id;
@ManyToMany(mappedBy = "spellbooks")
private Set<Wizard> wizards;
public Long getId() {
return id;
}
@OneToMany(mappedBy = "spellbook", orphanRemoval = true, cascade = CascadeType.ALL)
private Set<Spell> spells;
public String getName() {
return name;
}
public void setId(Long id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
private String name;
public Set<Wizard> getWizards() {
return wizards;
}
@ManyToMany(mappedBy = "spellbooks")
private Set<Wizard> wizards;
public void setWizards(Set<Wizard> wizards) {
this.wizards = wizards;
}
@OneToMany(mappedBy = "spellbook", orphanRemoval = true, cascade = CascadeType.ALL)
private Set<Spell> spells;
public Set<Spell> getSpells() {
return spells;
}
public String getName() {
return name;
}
public void setSpells(Set<Spell> spells) {
this.spells = spells;
}
public void setName(String name) {
this.name = name;
}
public void addSpell(Spell spell) {
spell.setSpellbook(this);
spells.add(spell);
}
@Override
public String toString() {
return name;
}
public Set<Wizard> getWizards() {
return wizards;
}
public void setWizards(Set<Wizard> wizards) {
this.wizards = wizards;
}
public Set<Spell> getSpells() {
return spells;
}
public void setSpells(Set<Spell> spells) {
this.spells = spells;
}
public void addSpell(Spell spell) {
spell.setSpellbook(this);
spells.add(spell);
}
@Override
public String toString() {
return name;
}
}

4
service-layer/src/main/java/com/iluwatar/servicelayer/spellbook/SpellbookDao.java
View File

@@ -8,7 +8,7 @@ import com.iluwatar.servicelayer.common.Dao;
*
*/
public interface SpellbookDao extends Dao<Spellbook> {
Spellbook findByName(String name);
Spellbook findByName(String name);
}

45
service-layer/src/main/java/com/iluwatar/servicelayer/spellbook/SpellbookDaoImpl.java
View File

@@ -14,28 +14,27 @@ import com.iluwatar.servicelayer.common.DaoBaseImpl;
*/
public class SpellbookDaoImpl extends DaoBaseImpl<Spellbook> implements SpellbookDao {
@Override
public Spellbook findByName(String name) {
Session session = getSession();
Transaction tx = null;
Spellbook result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.eq("name", name));
result = (Spellbook) criteria.uniqueResult();
result.getSpells().size();
result.getWizards().size();
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
return result;
}
@Override
public Spellbook findByName(String name) {
Session session = getSession();
Transaction tx = null;
Spellbook result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.eq("name", name));
result = (Spellbook) criteria.uniqueResult();
result.getSpells().size();
result.getWizards().size();
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
return result;
}
}

92
service-layer/src/main/java/com/iluwatar/servicelayer/wizard/Wizard.java
View File

@@ -20,59 +20,59 @@ import com.iluwatar.servicelayer.spellbook.Spellbook;
*
*/
@Entity
@Table(name="WIZARD")
@Table(name = "WIZARD")
public class Wizard extends BaseEntity {
public Wizard() {
spellbooks = new HashSet<Spellbook>();
}
public Wizard(String name) {
this();
this.name = name;
}
@Id
@GeneratedValue
@Column(name = "WIZARD_ID")
private Long id;
public Wizard() {
spellbooks = new HashSet<Spellbook>();
}
public Long getId() {
return id;
}
public Wizard(String name) {
this();
this.name = name;
}
public void setId(Long id) {
this.id = id;
}
private String name;
@Id
@GeneratedValue
@Column(name = "WIZARD_ID")
private Long id;
@ManyToMany(cascade = CascadeType.ALL)
private Set<Spellbook> spellbooks;
public String getName() {
return name;
}
public Long getId() {
return id;
}
public void setName(String name) {
this.name = name;
}
public void setId(Long id) {
this.id = id;
}
public Set<Spellbook> getSpellbooks() {
return spellbooks;
}
private String name;
public void setSpellbooks(Set<Spellbook> spellbooks) {
this.spellbooks = spellbooks;
}
@ManyToMany(cascade = CascadeType.ALL)
private Set<Spellbook> spellbooks;
public void addSpellbook(Spellbook spellbook) {
spellbook.getWizards().add(this);
spellbooks.add(spellbook);
}
@Override
public String toString() {
return name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<Spellbook> getSpellbooks() {
return spellbooks;
}
public void setSpellbooks(Set<Spellbook> spellbooks) {
this.spellbooks = spellbooks;
}
public void addSpellbook(Spellbook spellbook) {
spellbook.getWizards().add(this);
spellbooks.add(spellbook);
}
@Override
public String toString() {
return name;
}
}

4
service-layer/src/main/java/com/iluwatar/servicelayer/wizard/WizardDao.java
View File

@@ -8,7 +8,7 @@ import com.iluwatar.servicelayer.common.Dao;
*
*/
public interface WizardDao extends Dao<Wizard> {
Wizard findByName(String name);
Wizard findByName(String name);
}

47
service-layer/src/main/java/com/iluwatar/servicelayer/wizard/WizardDaoImpl.java
View File

@@ -15,28 +15,27 @@ import com.iluwatar.servicelayer.spellbook.Spellbook;
*/
public class WizardDaoImpl extends DaoBaseImpl<Wizard> implements WizardDao {
@Override
public Wizard findByName(String name) {
Session session = getSession();
Transaction tx = null;
Wizard result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.eq("name", name));
result = (Wizard) criteria.uniqueResult();
for (Spellbook s: result.getSpellbooks()) {
s.getSpells().size();
}
tx.commit();
}
catch (Exception e) {
if (tx!=null) tx.rollback();
throw e;
}
finally {
session.close();
}
return result;
}
@Override
public Wizard findByName(String name) {
Session session = getSession();
Transaction tx = null;
Wizard result = null;
try {
tx = session.beginTransaction();
Criteria criteria = session.createCriteria(persistentClass);
criteria.add(Restrictions.eq("name", name));
result = (Wizard) criteria.uniqueResult();
for (Spellbook s : result.getSpellbooks()) {
s.getSpells().size();
}
tx.commit();
} catch (Exception e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
return result;
}
}

12
service-layer/src/test/java/com/iluwatar/servicelayer/app/AppTest.java
View File

@@ -10,10 +10,10 @@ import com.iluwatar.servicelayer.app.App;
*
*/
public class AppTest {
@Test
public void test() {
String[] args = {};
App.main(args);
}
@Test
public void test() {
String[] args = {};
App.main(args);
}
}