Make ResourceService API more flexible in parameter

Change-Id: Ic8b803cc6ae3b2798de525bfd6545ac5c57e8fdd
diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentResourceStore.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentResourceStore.java
index c5a1d03..7572406 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentResourceStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/ConsistentResourceStore.java
@@ -113,7 +113,7 @@
     }
 
     @Override
-    public boolean register(List<Resource> resources) {
+    public boolean register(List<? extends Resource> resources) {
         checkNotNull(resources);
         if (log.isTraceEnabled()) {
             resources.forEach(r -> log.trace("registering {}", r));
@@ -155,7 +155,7 @@
     }
 
     @Override
-    public boolean unregister(List<ResourceId> ids) {
+    public boolean unregister(List<? extends ResourceId> ids) {
         checkNotNull(ids);
 
         TransactionContext tx = service.transactionContextBuilder().build();
@@ -204,7 +204,7 @@
     }
 
     @Override
-    public boolean allocate(List<Resource> resources, ResourceConsumer consumer) {
+    public boolean allocate(List<? extends Resource> resources, ResourceConsumer consumer) {
         checkNotNull(resources);
         checkNotNull(consumer);