SyncClient: support setting SyncFlags

Author: greenrobot-team

objectbox-java/src/main/java/io/objectbox/sync/SyncBuilder.java

@@ -61,6 +61,7 @@ public final class SyncBuilder {
 
     @Nullable
     String[] trustedCertPaths;
+    int flags;
     boolean uncommittedAcks;
 
     RequestUpdatesMode requestUpdatesMode = RequestUpdatesMode.AUTO;
@@ -168,6 +169,16 @@ public SyncBuilder trustedCertificates(String[] paths) {
         return this;
     }
 
+    /**
+     * Sets bit flags to adjust Sync behavior, like additional logging.
+     *
+     * @param flags One or multiple {@link SyncFlags}, combined with bitwise or.
+     */
+    public SyncBuilder flags(int flags) {
+        this.flags = flags;
+        return this;
+    }
+
     /**
      * Configure automatic sync updates from the server.
      * If automatic sync updates are turned off, they will need to be requested using the sync client.

objectbox-java/src/main/java/io/objectbox/sync/SyncClientImpl.java

@@ -83,6 +83,11 @@ public final class SyncClientImpl implements SyncClient {
                     nativeSyncOptAddCertPath(optHandle, certPath);
                 }
             }
+
+            // Add Sync flags if set
+            if (builder.flags != 0) {
+                nativeSyncOptFlags(optHandle, builder.flags);
+            }
         } catch (Exception e) {
             // Free the options if any option method call failed (like due to invalid arguments)
             nativeSyncOptFree(optHandle);