Added more methods to 'Enriched'

SmartDataAnalytics · Sep 7, 2023 · d854861 · d854861
1 parent 10727f7
commit d854861
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/...ons-utils-parent/aksw-commons-utils/src/main/java/org/aksw/commons/util/obj/Enriched.java b/...ons-utils-parent/aksw-commons-utils/src/main/java/org/aksw/commons/util/obj/Enriched.java
@@ -6,7 +6,9 @@
 import com.google.common.collect.ClassToInstanceMap;
 import com.google.common.collect.MutableClassToInstanceMap;
 
-/** A class for holding an object together with a class to instance map for adding metadata of arbitrary types. */
+/**
+ * A class for annotating an 'item' with metadata of arbitrary types.
+ */
 public class Enriched<T> {
     protected T item;
     protected ClassToInstanceMap<Object> classToInstanceMap;
@@ -33,6 +35,14 @@ public <X> X getInstance(Class<X> type) {
         return classToInstanceMap.getInstance(type);
     }
 
+    public <X> X getInstanceOrDefault(Class<X> type, X defaultValue) {
+        X result = classToInstanceMap.getInstance(type);
+        if (result == null) {
+            result = defaultValue;
+        }
+        return result;
+    }
+
     public <X> X putInstance(X value) {
         Class<?> type = value.getClass();
         classToInstanceMap.put(type, value);