Make ConstraintMetaDefition attributes Optional

[yangtools.git] / yang / yang-parser-impl / src / main / java / org / opendaylight / yangtools / yang / parser / stmt / rfc6020 / effective / MustEffectiveStatementImpl.java

diff --git a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/MustEffectiveStatementImpl.java b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/MustEffectiveStatementImpl.java
index 8415ea43f13e65ffc72342cdf4e488b63b1ed7ce..b6a3af42cd91f188b68c7673abedad23231f6276 100644 (file)
--- a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/MustEffectiveStatementImpl.java
+++ b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/MustEffectiveStatementImpl.java
@@ -8,6 +8,7 @@
 package org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective;
 
 import java.util.Objects;
+import java.util.Optional;
 import org.opendaylight.yangtools.yang.model.api.MustDefinition;
 import org.opendaylight.yangtools.yang.model.api.RevisionAwareXPath;
 import org.opendaylight.yangtools.yang.model.api.stmt.MustStatement;
@@ -50,13 +51,13 @@ public class MustEffectiveStatementImpl extends DeclaredEffectiveStatementBase<R
     }
 
     @Override
-    public String getErrorAppTag() {
-        return errorAppTag;
+    public Optional<String> getErrorAppTag() {
+        return Optional.ofNullable(errorAppTag);
     }
 
     @Override
-    public String getErrorMessage() {
-        return errorMessage;
+    public Optional<String> getErrorMessage() {
+        return Optional.ofNullable(errorMessage);
     }
 
     @Override