Creating TypeMap to use property mapping and converter class

java-collections-conversions-2/src/main/java/com/baeldung/modelmapper/MapperUtil.java

@@ -6,7 +6,7 @@ import java.util.List;
 import java.util.stream.Collectors;
 
 /**
- * This is a helper class that contains method for generic mapping of the users list.
+ * This is a helper class that contains method for custom mapping of the users list.
  * Initially, an instance of ModelMapper was created.
  *
  * @author Sasa Milenkovic

java-collections-conversions-2/src/main/java/com/baeldung/modelmapper/UserPropertyMap.java

@@ -1,37 +0,0 @@
-package com.baeldung.modelmapper;
-
-import org.modelmapper.AbstractConverter;
-import org.modelmapper.Converter;
-import org.modelmapper.PropertyMap;
-
-import java.util.List;
-import java.util.stream.Collectors;
-
-/**
- * UserPropertyMap class instantiates the converter to map the data from the UserList to the UsersLisDTO.
- * In the configuration method, we call a converter to do the mapping.
- *
- * @author Sasa Milenkovic
- */
-public class UserPropertyMap extends PropertyMap<UserList, UserListDTO> {
-
-
-    Converter<List<User>, List<String>> converter = new AbstractConverter<List<User>, List<String>>() {
-
-
-        @Override
-        protected List<String> convert(List<User> users) {
-
-            return users
-                    .stream()
-                    .map(User::getUsername)
-                    .collect(Collectors.toList());
-        }
-    };
-
-    @Override
-    protected void configure() {
-
-        using(converter).map(source.getUsers(), destination.getUsernames());
-    }
-}

java-collections-conversions-2/src/main/java/com/baeldung/modelmapper/UsersListConverter.java

@@ -0,0 +1,23 @@
+package com.baeldung.modelmapper;
+
+import org.modelmapper.AbstractConverter;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * UsersListConverter class map the property data from the list of users into the list of user names.
+ *
+ * @author Sasa Milenkovic
+ */
+public class UsersListConverter extends AbstractConverter<List<User>, List<String>> {
+
+    @Override
+    protected List<String> convert(List<User> users) {
+
+        return users
+                .stream()
+                .map(User::getUsername)
+                .collect(Collectors.toList());
+    }
+}