commons: bug fix in NodeEntity (join with mgmt objects children).

Signed-off-by: BOLLE Sebastien <sebastien.bolle@orange.com>
Signed-off-by: Cyrille Bareau <cyrille.bareau@orange.com>
diff --git a/org.eclipse.om2m.commons/src/main/java/org/eclipse/om2m/commons/entities/NodeEntity.java b/org.eclipse.om2m.commons/src/main/java/org/eclipse/om2m/commons/entities/NodeEntity.java
index 967012a..ef8e3ff 100644
--- a/org.eclipse.om2m.commons/src/main/java/org/eclipse/om2m/commons/entities/NodeEntity.java
+++ b/org.eclipse.om2m.commons/src/main/java/org/eclipse/om2m/commons/entities/NodeEntity.java
@@ -98,7 +98,7 @@
 	protected List<SubscriptionEntity> childSubscriptions;
 
 	// Database link to AreaNwkInfo Entity
-	@OneToMany(fetch = FetchType.LAZY, cascade = {CascadeType.ALL})
+	@OneToMany(fetch = FetchType.LAZY, cascade = {CascadeType.ALL}, mappedBy="parentNode")
 	@JoinTable(
 			name = DBEntities.ANI_NOD_JOIN,
 			inverseJoinColumns = { @JoinColumn(name = DBEntities.ANI_JOIN_ID, referencedColumnName = ShortName.RESOURCE_ID) }, 
@@ -107,7 +107,7 @@
 	protected List<AreaNwkInfoEntity> childAreaNwkInfoEntities;
 	
 	// Database link to AreaNwkDeviceInfo entity
-	@OneToMany(fetch = FetchType.LAZY, cascade = {CascadeType.ALL})
+	@OneToMany(fetch = FetchType.LAZY, cascade = {CascadeType.ALL}, mappedBy="parentNode")
 	@JoinTable(
 			name = DBEntities.ANDI_NOD_JOIN,
 			inverseJoinColumns = { @JoinColumn(name = DBEntities.ANDI_JOIN_ID, referencedColumnName = ShortName.RESOURCE_ID) },