Aggunto loan base con loanrepository

mivan/src/main/java/mivan/model/Loan.java

@@ -0,0 +1,63 @@
+package mivan.model;
+
+import javax.persistence.Column;
+import javax.persistence.Id;
+
+public class Loan {
+
+	private static final long serialVersionUID = -5124436115031696628L;
+	
+	@Id
+	@Column(name = "id", nullable=false, unique=true)
+	private long id;
+	
+	@Column(name = "date_start", nullable = false)
+	private String date_start;
+
+	@Column(name = "date_end", nullable = false)
+	private String date_end;
+
+	@Column(name = "state", nullable = false)
+	private String state;
+
+	public Loan(long id, String date_start, String date_end, String state) {
+		this.id = id;
+		this.date_start = date_start;
+		this.date_end = date_end;
+		this.state = state;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+	public String getDate_start() {
+		return date_start;
+	}
+
+	public String getDate_end() {
+		return date_end;
+	}
+
+	public String getState() {
+		return state;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public void setDate_start(String date_start) {
+		this.date_start = date_start;
+	}
+
+	public void setDate_end(String date_end) {
+		this.date_end = date_end;
+	}
+
+	public void setState(String state) {
+		this.state = state;
+	}
+
+	
+}

mivan/src/main/java/mivan/repository/LoanRepository.java

@@ -0,0 +1,16 @@
+package mivan.repository;
+
+
+import mivan.model.Loan;
+
+public interface LoanRepository extends Repository<Loan, Long> {
+
+	public void deleteLoanById(Long id);
+
+	public void addLoan(Loan loan);
+	
+	public void updateLoan(Long id, String stato);
+	
+	public int getSize();
+	
+}

mivan/src/main/java/mivan/repository/LoanRepositoryImpl.java

@@ -0,0 +1,98 @@
+package mivan.repository;
+
+import java.util.List;
+import java.util.Optional;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+
+import mivan.model.Loan;
+
+public class LoanRepositoryImpl implements LoanRepository{
+
+	private EntityManagerFactory entityManagerFactory;
+
+	public LoanRepositoryImpl() {
+		this.entityManagerFactory = Persistence.createEntityManagerFactory("mivan");
+	}
+	
+	public Optional<Loan> findById(Long id) {
+		final EntityManager entityManager = this.entityManagerFactory.createEntityManager();
+		Loan loan = entityManager.find(Loan.class, id);
+		entityManager.close();
+		return Optional.ofNullable(loan);
+	}
+
+	@Override
+	public Iterable<Loan> findAll() {
+		final EntityManager entityManager = this.entityManagerFactory.createEntityManager();
+		List<Loan> loan = entityManager.createQuery("FROM Loan", Loan.class).getResultList();
+		entityManager.close();
+		return loan;
+	}
+
+	@Override
+	public void deleteLoanById(Long id) {
+		final EntityManager entityManager = this.entityManagerFactory.createEntityManager();
+		try {
+			if (!entityManager.getTransaction().isActive()) {
+				entityManager.getTransaction().begin();
+			}
+			Loan loan = entityManager.find(Loan.class, id);
+			entityManager.remove(loan);
+			entityManager.getTransaction().commit();
+			entityManager.close();
+		} catch (Exception ex) {
+			entityManager.getTransaction().rollback();
+		}
+	}
+
+	@Override
+	public void addLoan(Loan loan) {
+		final EntityManager entityManager = this.entityManagerFactory.createEntityManager();
+		try {
+			if (!entityManager.getTransaction().isActive()) {
+				entityManager.getTransaction().begin();
+			}
+			entityManager.persist(loan);
+			entityManager.getTransaction().commit();
+			entityManager.close();
+			
+		} catch (Exception ex) {
+			entityManager.getTransaction().rollback();
+		}
+	}
+
+	@Override
+	public void updateLoan(Long id, String state) {
+		final EntityManager entityManager = this.entityManagerFactory.createEntityManager();
+		try {
+			if (!entityManager.getTransaction().isActive()) {
+				entityManager.getTransaction().begin();
+			}
+			Loan loan = entityManager.find(Loan.class, id);
+			loan.setState(state);
+			entityManager.persist(loan);
+			entityManager.getTransaction().commit();
+			entityManager.close();
+		} catch (Exception ex) {
+			entityManager.getTransaction().rollback();
+		}
+	}
+
+	
+	@Override
+	public int getSize() {
+		final EntityManager entityManager = this.entityManagerFactory.createEntityManager();
+		int size = 0;
+		try {
+			size = entityManager.createQuery("FROM Loan").getResultList().size();
+
+			entityManager.close();
+		} catch (Exception ex) {
+			size = 0;
+		}
+		return size;
+	}
+}