package org.opendaylight.yangtools.yang.model.api.stmt;
import java.util.Collection;
-import javax.annotation.Nullable;
+import java.util.Optional;
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
+import org.opendaylight.yangtools.yang.common.QName;
-public interface ListStatement extends DataDefinitionStatement, MultipleElementsGroup,
- DataDefinitionContainer.WithReusableDefinitions {
-
- Collection<? extends MustStatement> getMusts();
-
- @Nullable KeyStatement getKey();
-
- Collection<? extends UniqueStatement> getUnique();
-
- @Nullable ConfigStatement getConfig();
+public interface ListStatement extends MultipleElementsDeclaredStatement,
+ DataDefinitionAwareDeclaredStatement.WithReusableDefinitions<QName>,
+ ConfigStatementAwareDeclaredStatement<QName>, ActionStatementAwareDeclaredStatement<QName>,
+ MustStatementAwareDeclaredStatement<QName>, NotificationStatementAwareDeclaredStatement<QName> {
+ default @Nullable KeyStatement getKey() {
+ final Optional<KeyStatement> opt = findFirstDeclaredSubstatement(KeyStatement.class);
+ return opt.isPresent() ? opt.get() : null;
+ }
+ default @NonNull Collection<? extends UniqueStatement> getUnique() {
+ return declaredSubstatements(UniqueStatement.class);
+ }
}