added ExtensionRegistry.isEmpty() as requested by protocolbuffers#52

wolf34736 · Apr 23, 2015 · ab745a2 · ab745a2
1 parent 0b19272
commit ab745a2
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/java/src/main/java/com/google/protobuf/ExtensionRegistry.java b/java/src/main/java/com/google/protobuf/ExtensionRegistry.java
@@ -98,11 +98,22 @@ public class ExtensionRegistry extends ExtensionRegistryLite {
   public static ExtensionRegistry newInstance() {
     return new ExtensionRegistry();
   }
+
 
   /** Get the unmodifiable singleton empty instance. */
   public static ExtensionRegistry getEmptyRegistry() {
     return EMPTY;
   }
+
+  /** check if instance is empty*/
+  public boolean isEmpty()
+  {
+	if(this == getEmptyRegistry())
+	{
+		return true;
+	}
+	else return false;
+  }
 
 
   /** Returns an unmodifiable view of the registry. */