Sha256: 17f0bd1e72913bf0bcec0c4fd88c5a9bc454ec5c6fc8d55a8f865e76cc7e687f
Contents?: true
Size: 1.04 KB
Versions: 5
Compression:
Stored size: 1.04 KB
Contents
package app.repositories;
import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.util.List;
import javax.persistence.EntityManager;
public abstract class Repository<T, I extends Serializable> {
protected final EntityManager entityManager;
public Repository(EntityManager entityManager) {
this.entityManager = entityManager;
}
public void create(T entity) {
entityManager.persist(entity);
}
public void update(T entity) {
entityManager.merge(entity);
}
public void destroy(T entity) {
entityManager.remove(entity);
}
public T find(I id) {
return entityManager.find(getParameterizedClass(), id);
}
@SuppressWarnings("unchecked")
public List<T> findAll() {
return entityManager.createQuery("From " + getParameterizedClass().getName()).getResultList();
}
@SuppressWarnings("unchecked")
private Class<T> getParameterizedClass() {
ParameterizedType parameterizedType = (ParameterizedType) getClass().getGenericSuperclass();
return (Class<T>) parameterizedType.getActualTypeArguments()[0];
}
}
Version data entries
5 entries across 5 versions & 1 rubygems