Add batchFetch for fetching place references. Speeds up init considerably

code/moya-database/src/main/java/fi/codecrew/moya/model/Place.java

@@ -32,6 +32,9 @@ import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
 import javax.persistence.Transient;
 
+import org.eclipse.persistence.annotations.BatchFetch;
+import org.eclipse.persistence.annotations.BatchFetchType;
+
 import fi.codecrew.moya.utilities.NumericStringComparator;
 
 /**
@@ -69,6 +72,7 @@ public class Place extends GenericEntity implements Comparable<Place> {
 	private String code = "";
 
 	@OneToOne(mappedBy = "placeReservation")
+	@BatchFetch(BatchFetchType.EXISTS)
 	private GroupMembership placeReserver;
 
 	@Column(name = "buyable", nullable = false)
@@ -104,6 +108,11 @@ public class Place extends GenericEntity implements Comparable<Place> {
 	@ManyToOne
 	private EventUser currentUser;
 
+	@OneToOne(mappedBy = "place")
+	@JoinColumn(nullable = true)
+	@BatchFetch(BatchFetchType.EXISTS)
+	private PlaceSlot reserverSlot;
+
 	public static enum PlaceState {
 		FREE, DISABLED, LOCKED, TEMP_RESERVED_FORME,
 		MY_PLACE, RESERVED
@@ -138,10 +147,6 @@ public class Place extends GenericEntity implements Comparable<Place> {
 		return ret;
 	}
 
-	@OneToOne(mappedBy = "place")
-	@JoinColumn(nullable = true)
-	private PlaceSlot reserverSlot;
-
 	public Place() {
 		super();
 	}
@@ -311,6 +316,7 @@ public class Place extends GenericEntity implements Comparable<Place> {
 
 	/**
 	 * NOTE: you can newer be sure that this is up to date
+	 * 
 	 * @return
 	 */
 	public PlaceSlot getReserverSlot() {
@@ -361,13 +367,13 @@ public class Place extends GenericEntity implements Comparable<Place> {
 		if (this.getName() == null || o.getName() == null) {
 			if (this.getName() == null) {
 				return 1;
-		}
+			}
 			if (o.getName() == null) {
-			return -1;
-		}
+				return -1;
+			}
 			// both names are null. Compare IDs
 			return this.getNonNullId().compareTo(o.getNonNullId());
-			}
+		}
 
 		if (this.getName().equals(o.getName())) {
 			return 0;