add merge

2 files changed, 20 insertions, 9 deletions

diff --git a/src/main/java/nu/xss/jpa/dao/Dao.java b/src/main/java/nu/xss/jpa/dao/Dao.java
index 18d886f..2c541c9 100644
--- a/src/main/java/nu/xss/jpa/dao/Dao.java
+++ b/src/main/java/nu/xss/jpa/dao/Dao.java
@@ -4,6 +4,7 @@ import java.util.List;
 
 public interface Dao<E, K> {
     void save(E entity);
+    void merge(E entity);
     void delete(E entity);
     E findById(K id);
     List<E> findAll();
diff --git a/src/main/java/nu/xss/jpa/dao/GenericJpaDao.java b/src/main/java/nu/xss/jpa/dao/GenericJpaDao.java
index e282911..cac96e6 100644
--- a/src/main/java/nu/xss/jpa/dao/GenericJpaDao.java
+++ b/src/main/java/nu/xss/jpa/dao/GenericJpaDao.java
@@ -10,30 +10,40 @@ import javax.persistence.PersistenceContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public abstract class GenericJpaDao<E,K> implements Dao<E,K>, Serializable {
-	
+public abstract class GenericJpaDao<E, K> implements Dao<E, K>, Serializable {
+
 	private static final long serialVersionUID = 4998055731089977476L;
 	protected final Logger logger = LoggerFactory.getLogger(this.getClass());
-	
+
 	@PersistenceContext
 	protected EntityManager entityManager;
-	
+
 	protected Class<E> entity;
-	
+
 	@SuppressWarnings("unchecked")
 	public GenericJpaDao() {
-		ParameterizedType genericSuperclass = (ParameterizedType) getClass().getGenericSuperclass();
+		ParameterizedType genericSuperclass = (ParameterizedType) getClass()
+				.getGenericSuperclass();
 		this.entity = (Class<E>) genericSuperclass.getActualTypeArguments()[0];
 	}
-	
+
 	public void save(E entity) {
+		logger.info("Persist Entity: {}.", entity.toString());
 		entityManager.persist(entity);
-                logger.info("Saved entity: {}.", entity.toString());
+		entityManager.flush();
+		logger.info("Saved entity: {}.", entity.toString());
+	}
+
+	public void merge(E entity) {
+		logger.info("Merge Entity: {}.", entity.toString());
+		entityManager.merge(entity);
+		entityManager.flush();
+		logger.info("Saved entity: {}.", entity.toString());
 	}
 
 	public void delete(E entity) {
 		entityManager.remove(entity);
-                logger.info("Deleted entity: {}.", entity.toString());
+		logger.info("Deleted entity: {}.", entity.toString());
 	}
 
 	public E findById(K id) {