X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=yang%2Fyang-model-api%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fyangtools%2Fyang%2Fmodel%2Fapi%2FDataNodeContainer.java;h=2658835321d1205ad9c3aa9ef0660325e098ec26;hb=d0dbb419174786ae930c5a6838d032f0975add38;hp=c6ad90375bfbd3266483ae571e05a0deff08ff6d;hpb=f4212253d03d6917ce6317d99c4d47a1e5028905;p=yangtools.git

diff --git a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/DataNodeContainer.java b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/DataNodeContainer.java
index c6ad90375b..2658835321 100644
--- a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/DataNodeContainer.java
+++ b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/DataNodeContainer.java
@@ -82,6 +82,34 @@ public interface DataNodeContainer {
      */
     Optional<DataSchemaNode> findDataChildByName(QName name);
 
+    /**
+     * Returns the child node corresponding to the specified name.
+     *
+     * <p>
+     * Note that the nodes searched are <strong>NOT</strong> {@code data nodes}, but rather {@link DataSchemaNode}s,
+     * hence {@link ChoiceSchemaNode} and {@link CaseSchemaNode} are returned instead of their matching children.
+     *
+     * @param first QName of first child
+     * @param others QNames of subsequent children
+     * @return child node of this DataNodeContainer if child with given name is present, empty otherwise
+     * @throws NullPointerException if any argument is null
+     */
+    default Optional<DataSchemaNode> findDataChildByName(QName first, QName... others) {
+        Optional<DataSchemaNode> optCurrent = findDataChildByName(first);
+        for (QName qname : others) {
+            if (optCurrent.isPresent()) {
+                final DataSchemaNode current = optCurrent.get();
+                if (current instanceof DataNodeContainer) {
+                    optCurrent = ((DataNodeContainer) current).findDataChildByName(qname);
+                    continue;
+                }
+            }
+
+            return Optional.empty();
+        }
+        return optCurrent;
+    }
+
     /**
      * Returns grouping nodes used ny this container.
      *