BUG-4295: instantiate MERGE operations lazily

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

diff --git a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ModificationApplyOperation.java b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ModificationApplyOperation.java
index cdeaa7c01adee901b4be7663c3b10afd37caaddf..933bf9c5704a9f788d0882dd2b1e6d4d06966bd5 100644 (file)
--- a/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ModificationApplyOperation.java
+++ b/yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/ModificationApplyOperation.java
@@ -88,6 +88,17 @@ abstract class ModificationApplyOperation implements StoreTreeNode<ModificationA
      */
     abstract ChildTrackingPolicy getChildPolicy();
 
+    /**
+     * Stage a merge operation into a {@link ModifiedNode} such that it will be processed correctly by
+     * {@link #apply(ModifiedNode, Optional, Version)}. This method is the context which is introducing this operation,
+     * and so any overheads are charged to whoever is in control of the access pattern.
+     *
+     * @param modification Original modification node
+     * @param value Value which should be merge into the modification
+     * @param version Data version as carried in the containing {@link InMemoryDataTreeModification}
+     */
+    abstract void mergeIntoModifiedNode(ModifiedNode modification, NormalizedNode<?, ?> value, Version version);
+
     /**
      * Returns a suboperation for specified tree node
      *
@@ -96,4 +107,6 @@ abstract class ModificationApplyOperation implements StoreTreeNode<ModificationA
      */
     @Override
     public abstract Optional<ModificationApplyOperation> getChild(PathArgument child);
+
+    abstract void recursivelyVerifyStructure(NormalizedNode<?, ?> value);
 }