Make RangeRestrictedTypeDefinition type-aware

[yangtools.git] / yang / yang-model-util / src / main / java / org / opendaylight / yangtools / yang / model / util / type / AbstractBaseType.java

diff --git a/yang/yang-model-util/src/main/java/org/opendaylight/yangtools/yang/model/util/type/AbstractBaseType.java b/yang/yang-model-util/src/main/java/org/opendaylight/yangtools/yang/model/util/type/AbstractBaseType.java
index ef9f97d0d1abf879791f23bc474b6a2819a209d2..8080b325746a43b040be8b9cc7953d8784b40c1f 100644 (file)
--- a/yang/yang-model-util/src/main/java/org/opendaylight/yangtools/yang/model/util/type/AbstractBaseType.java
+++ b/yang/yang-model-util/src/main/java/org/opendaylight/yangtools/yang/model/util/type/AbstractBaseType.java
@@ -9,6 +9,7 @@ package org.opendaylight.yangtools.yang.model.util.type;
 
 import com.google.common.collect.ImmutableList;
 import java.util.List;
+import java.util.Optional;
 import javax.annotation.Nonnull;
 import org.opendaylight.yangtools.yang.common.QName;
 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
@@ -31,23 +32,23 @@ abstract class AbstractBaseType<T extends TypeDefinition<T>> extends AbstractTyp
     }
 
     @Override
-    public final String getUnits() {
-        return null;
+    public final Optional<String> getUnits() {
+        return Optional.empty();
     }
 
     @Override
-    public final Object getDefaultValue() {
-        return null;
+    public final Optional<? extends Object> getDefaultValue() {
+        return Optional.empty();
     }
 
     @Override
-    public final String getDescription() {
-        return null;
+    public final Optional<String> getDescription() {
+        return Optional.empty();
     }
 
     @Override
-    public final String getReference() {
-        return null;
+    public final Optional<String> getReference() {
+        return Optional.empty();
     }
 
     @Nonnull