1 files changed, 58 insertions, 0 deletions
diff --git a/src/org/traccar/database/DataManager.java b/src/org/traccar/database/DataManager.java
index da87c6c27..31d7155d3 100644
--- a/src/org/traccar/database/DataManager.java
+++ b/src/org/traccar/database/DataManager.java
@@ -31,6 +31,7 @@ import java.util.Map;
 import javax.naming.InitialContext;
 import javax.sql.DataSource;
 import org.traccar.Config;
+import org.traccar.helper.Clazz;
 import org.traccar.helper.DriverDelegate;
 import org.traccar.helper.Log;
 import org.traccar.model.Device;
@@ -386,4 +387,61 @@ public class DataManager implements IdentityManager {
                 .executeUpdate();
     }
 
+    public <T> Collection<T> get(Class<T> clazz) throws SQLException {
+        if (clazz.equals(User.class)) {
+            return (Collection<T>) getUsers();
+        } else if (clazz.equals(Device.class)) {
+            return (Collection<T>) getAllDevices();
+        }
+        return null;
+    }
+
+    public <T> T get(T entity) throws Exception {
+        if (entity instanceof User) {
+            return (T) getUser(Clazz.getId(entity));
+        } else if (entity instanceof Device) {
+            return (T) getDeviceById(Clazz.getId(entity));
+        }
+        return null;
+    }
+
+    public void add(Object entity) throws SQLException {
+        if (entity instanceof User) {
+            addUser((User) entity);
+        } else if (entity instanceof Device) {
+            addDevice((Device) entity);
+        } else if (entity instanceof Position) {
+            addPosition((Position) entity);
+        }
+    }
+
+    public void update(Object entity) throws SQLException {
+        if (entity instanceof User) {
+            updateUser((User) entity);
+        } else if (entity instanceof Device) {
+            updateDevice((Device) entity);
+        } else if (entity instanceof Server) {
+            updateServer((Server) entity);
+        }
+    }
+
+    public void remove(Object entity) throws SQLException {
+        if (entity instanceof User) {
+            removeUser((User) entity);
+        } else if (entity instanceof Device) {
+            removeDevice((Device) entity);
+        }
+    }
+
+    public void link(Class clazz, long userId, long entityId) throws SQLException {
+        if (clazz.equals(Device.class)) {
+            linkDevice(userId, entityId);
+        }
+    }
+
+    public void unlink(Class clazz, long userId, long entityId) throws SQLException {
+        if (clazz.equals(Device.class)) {
+            unlinkDevice(userId, entityId);
+        }
+    }
 }