BUG-4295: instantiate MERGE operations lazily

[yangtools.git] / yang / yang-data-impl / src / main / java / org / opendaylight / yangtools / yang / data / impl / schema / tree / OrderedMapModificationStrategy.java

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedMapModificationStrategy.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedMapModificationStrategy.java
index 686258a7909ee2a9db52e847f534dbd54811cdc9..c69a170f246550b8a2f53ef5899ad47c7cc86ce0 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedMapModificationStrategy.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedMapModificationStrategy.java
@@ -39,6 +39,13 @@ final class OrderedMapModificationStrategy extends AbstractNodeContainerModifica
         return ImmutableOrderedMapNodeBuilder.create((OrderedMapNode) original);
     }
 
+    @Override
+    protected NormalizedNode<?, ?> createEmptyValue(NormalizedNode<?, ?> original) {
+        checkArgument(original instanceof OrderedMapNode);
+        return ImmutableOrderedMapNodeBuilder.create().withNodeIdentifier(((OrderedMapNode) original).getIdentifier())
+                .build();
+    }
+
     @Override
     public Optional<ModificationApplyOperation> getChild(final YangInstanceIdentifier.PathArgument identifier) {
         if (identifier instanceof YangInstanceIdentifier.NodeIdentifierWithPredicates) {