switch from jpa to orientdb

src/de/geofroggerfx/service/CacheServiceImpl.java

@@ -5,13 +5,15 @@
  */
 package de.geofroggerfx.service;
 
+import com.orientechnologies.orient.core.sql.query.OSQLSynchQuery;
+import com.orientechnologies.orient.object.db.OObjectDatabaseTx;
 import de.geofroggerfx.application.ProgressEvent;
 import de.geofroggerfx.application.ProgressListener;
-import de.geofroggerfx.model.*;
+import de.geofroggerfx.model.Cache;
+import de.geofroggerfx.model.CacheList;
 import de.geofroggerfx.sql.DatabaseService;
 
 import javax.inject.Inject;
-import javax.persistence.EntityManager;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -35,10 +37,9 @@ public class CacheServiceImpl implements CacheService {
 
   @Override
   public void storeCaches(List<Cache> caches) {
-      EntityManager em = dbService.getEntityManager();
+    OObjectDatabaseTx database = dbService.getDatabase();
 
     try {
-      int transactionNumber = 0;
       int currentCacheNumber = 0;
       int numberOfCaches = caches.size();
       for (Cache cache : caches) {
@@ -48,42 +49,10 @@ public class CacheServiceImpl implements CacheService {
               "Save caches to Database " + currentCacheNumber + " / " + numberOfCaches,
               (double) currentCacheNumber / (double) numberOfCaches));
 
-        // begin transaction if the transaction counter is set to zero
-        if (transactionNumber == 0) { em.getTransaction().begin(); }
-        transactionNumber++;
-
-        em.merge(cache.getOwner());
-        em.merge(cache.getMainWayPoint());
-
-        for (Log log: cache.getLogs()) {
-          em.merge(log);
-          em.merge(log.getFinder());
-        }
-
-        for (Attribute attribute: cache.getAttributes()) {
-          em.merge(attribute);
-        }
-
-        for (TravelBug bug: cache.getTravelBugs()) {
-          em.merge(bug);
-        }
-
-        em.merge(cache);
-
-        // comit every X caches
-        if (transactionNumber == TRANSACTION_SIZE) {
-          em.getTransaction().commit();
-          transactionNumber = 0;
-        }
-      }
-
-      // if there wasn?t a commit right before, commit the rest
-      if (transactionNumber != 0) {
-        em.getTransaction().commit();
+        database.save(cache);
       }
     } catch (Exception e) {
       e.printStackTrace();
-      em.getTransaction().rollback();
     }
 
     fireEvent(new ProgressEvent("Database",
@@ -98,9 +67,9 @@ public class CacheServiceImpl implements CacheService {
     List<Cache> caches = new ArrayList<>();
 
     try {
-      EntityManager em = dbService.getEntityManager();
-      String query = "select c from Cache c order by c."+sortField.getFieldName()+" "+direction.toString();
-      List<Cache> result = em.createQuery(query).getResultList();
+      OObjectDatabaseTx database = dbService.getDatabase();
+      String query = "select * from Cache order by "+sortField.getFieldName()+" "+direction.toString();
+      List<Cache> result = database.query(new OSQLSynchQuery<Cache>(query));
       if (result != null) {
         caches = result;
       }
@@ -122,9 +91,9 @@ public class CacheServiceImpl implements CacheService {
   public List<CacheList> getAllCacheLists() {
     List<CacheList> lists = new ArrayList<>();
     try {
-      EntityManager em = dbService.getEntityManager();
-      String query = "select l from CacheList l order by l.name";
-      List<CacheList> result = em.createQuery(query).getResultList();
+      OObjectDatabaseTx database = dbService.getDatabase();
+      String query = "select * from CacheList order by name";
+      List<CacheList> result = database.query(new OSQLSynchQuery<CacheList>(query));
       if (result != null) {
         lists = result;
       }
@@ -139,10 +108,12 @@ public class CacheServiceImpl implements CacheService {
   public boolean doesCacheListNameExist(String name) {
     boolean doesExist = false;
     try {
-      EntityManager em = dbService.getEntityManager();
-      String query = "select count(l) from CacheList l where l.name = :name";
-      Long result = (Long)em.createQuery(query).setParameter("name", name).getSingleResult();
-      doesExist = result > 0;
+      OObjectDatabaseTx database = dbService.getDatabase();
+      String query = "select * from CacheList l where l.name = :name";
+      List<CacheList> result = database.query(new OSQLSynchQuery<CacheList>(query));
+      if (result != null) {
+        doesExist = result.size() > 0;
+      }
     } catch (Exception e) {
       e.printStackTrace();
     }
@@ -151,14 +122,11 @@ public class CacheServiceImpl implements CacheService {
 
   @Override
   public void deleteCacheList(CacheList cacheList) {
-    EntityManager em = dbService.getEntityManager();
+    OObjectDatabaseTx database = dbService.getDatabase();
     try {
-      em.getTransaction().begin();
-      em.remove(cacheList);
-      em.getTransaction().commit();
+      database.delete(cacheList);
     } catch (Exception e) {
       e.printStackTrace();
-      em.getTransaction().rollback();
     }
   }
 
@@ -167,14 +135,11 @@ public class CacheServiceImpl implements CacheService {
    */
   @Override
   public void storeCacheList(CacheList list) {
-    EntityManager em = dbService.getEntityManager();
+    OObjectDatabaseTx database = dbService.getDatabase();
     try {
-      em.getTransaction().begin();
-      em.merge(list);
-      em.getTransaction().commit();
+      database.save(list);
     } catch (Exception e) {
       e.printStackTrace();
-      em.getTransaction().rollback();
     }
   }
 }