-/*\r
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.\r
- *\r
- * This program and the accompanying materials are made available under the\r
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
- * and is available at http://www.eclipse.org/legal/epl-v10.html\r
- */\r
-package org.opendaylight.yangtools.yang.model.api;\r
-\r
-import java.util.Set;\r
-\r
-/**\r
- * Interface for all nodes which are possible targets of augmentation. The\r
- * target node of augmentation MUST be either a container, list, choice, case,\r
- * input, output, or notification node.\r
- */\r
-public interface AugmentationTarget {\r
-\r
- /**\r
- * @return set of augmentations targeting this element.\r
- */\r
- Set<AugmentationSchema> getAvailableAugmentations();\r
-\r
-}\r
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.yangtools.yang.model.api;
+
+import java.util.Collection;
+import org.eclipse.jdt.annotation.NonNull;
+
+/**
+ * Interface for all nodes which are possible targets of augmentation. The
+ * target node of augmentation MUST be either a container, list, choice, case,
+ * input, output, or notification node.
+ */
+public interface AugmentationTarget {
+ /**
+ * Returns augmentations targeting this element.
+ *
+ * @return set of augmentations targeting this element.
+ */
+ @NonNull Collection<? extends @NonNull AugmentationSchemaNode> getAvailableAugmentations();
+}