import com.google.common.base.Optional;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
import org.opendaylight.yangtools.yang.data.api.schema.tree.StoreTreeNode;
import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.TreeNode;
import org.opendaylight.yangtools.yang.data.api.schema.tree.spi.Version;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
/**
- *
* Operation responsible for applying {@link ModifiedNode} on tree.
*
* Operation is composite - operation on top level node consists of
*
* Hierarchical composite operation which is responsible for applying
* modification on particular subtree and creating updated subtree
- *
- *
*/
-interface ModificationApplyOperation extends StoreTreeNode<ModificationApplyOperation> {
-
+abstract class ModificationApplyOperation implements StoreTreeNode<ModificationApplyOperation> {
/**
*
* Implementation of this operation must be stateless and must not change
* node, {@link Optional#absent()} if {@link ModifiedNode}
* resulted in deletion of this node.
*/
- Optional<TreeNode> apply(ModifiedNode modification, Optional<TreeNode> storeMeta, Version version);
+ abstract Optional<TreeNode> apply(ModifiedNode modification, Optional<TreeNode> storeMeta, Version version);
+
+ /**
+ *
+ * Checks if provided node modification could be applied to current metadata node.
+ *
+ * @param modification Modification
+ * @param current Metadata Node to which modification should be applied
+ * @return true if modification is applicable
+ * false if modification is no applicable
+ * @throws DataValidationFailedException
+ */
+ abstract void checkApplicable(YangInstanceIdentifier path, NodeModification modification, Optional<TreeNode> current) throws DataValidationFailedException;
/**
*
* @param modification to be verified.
* @throws IllegalArgumentException If provided NodeModification does not adhere to the structure.
*/
- void verifyStructure(ModifiedNode modification) throws IllegalArgumentException;
+ abstract void verifyStructure(ModifiedNode modification) throws IllegalArgumentException;
/**
- * Returns a suboperation for specified tree node
+ * Return the tracking policy for this node's children.
*
- * @return Reference to suboperation for specified tree node, {@link Optional#absent()}
- * if suboperation is not supported for specified tree node.
+ * @return Tracking policy, may not be null.
*/
- @Override
- Optional<ModificationApplyOperation> getChild(PathArgument child);
+ abstract ChildTrackingPolicy getChildPolicy();
/**
+ * Returns a suboperation for specified tree node
*
- * Checks if provided node modification could be applied to current metadata node.
- *
- * @param modification Modification
- * @param current Metadata Node to which modification should be applied
- * @return true if modification is applicable
- * false if modification is no applicable
- * @throws DataValidationFailedException
+ * @return Reference to suboperation for specified tree node, {@link Optional#absent()}
+ * if suboperation is not supported for specified tree node.
*/
- void checkApplicable(YangInstanceIdentifier path, NodeModification modification, Optional<TreeNode> current) throws DataValidationFailedException;
+ @Override
+ public abstract Optional<ModificationApplyOperation> getChild(PathArgument child);
}