1 files changed, 16 insertions, 0 deletions

diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/metadata/ClassDetail.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/metadata/ClassDetail.java
new file mode 100644
index 00000000..1d3190f5
--- /dev/null
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/metadata/ClassDetail.java
@@ -0,0 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.language.semantics.metadata;
+
+public record ClassDetail(boolean abstractClass) implements RelationDetail {
+        public static final ClassDetail CONCRETE_CLASS = new ClassDetail(false);
+
+        public static final ClassDetail ABSTRACT_CLASS = new ClassDetail(true);
+
+        public static ClassDetail ofAbstractClass(boolean abstractClass) {
+                return abstractClass ? ABSTRACT_CLASS : CONCRETE_CLASS;
+        }
+}