*/
package org.opendaylight.yangtools.yang.data.api.schema.tree;
+import java.util.Optional;
+import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-
-import com.google.common.base.Optional;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextProvider;
/**
- * Read-only snapshot of a {@link DataTree}. The snapshot is stable and isolated,
- * e.g. data tree changes occurring after the snapshot has been taken are not
- * visible through the snapshot.
+ * Read-only snapshot of a {@link DataTree}. The snapshot is stable and isolated, e.g. data tree changes occurring after
+ * the snapshot has been taken are not visible through the snapshot.
*/
-public interface DataTreeSnapshot {
+public interface DataTreeSnapshot extends EffectiveModelContextProvider {
/**
* Read a particular node from the snapshot.
*
* @param path Path of the node
* @return Optional result encapsulating the presence and value of the node
*/
- Optional<NormalizedNode<?, ?>> readNode(YangInstanceIdentifier path);
+ Optional<NormalizedNode> readNode(YangInstanceIdentifier path);
/**
* Create a new data tree modification based on this snapshot, using the
*
* @return A new data tree modification
*/
- DataTreeModification newModification();
+ @NonNull DataTreeModification newModification();
}