Support anonymous enum object that implement interface method

Related with gh-1489

Author: kazuki43zoo

src/main/java/org/apache/ibatis/type/TypeHandlerRegistry.java

@@ -242,6 +242,7 @@ private Map<JdbcType, TypeHandler<?>> getJdbcHandlerMap(Type type) {
     if (jdbcHandlerMap == null && type instanceof Class) {
       Class<?> clazz = (Class<?>) type;
       if (clazz.isEnum() || (clazz.isAnonymousClass() && clazz.getEnclosingClass().isEnum())) {
+        clazz = clazz.isAnonymousClass() ? clazz.getEnclosingClass() : clazz;
         jdbcHandlerMap = getJdbcHandlerMapForEnumInterfaces(clazz, clazz);
         if (jdbcHandlerMap == null) {
           register(clazz, getInstance(clazz, defaultEnumTypeHandler));

src/test/java/org/apache/ibatis/submitted/enum_interface_type_handler/EnumInterfaceTypeHandlerTest.java

@@ -65,4 +65,18 @@ void shouldInsertAUser() {
       assertEquals(Color.BLUE, result.getColor());
     }
   }
+
+  @Test
+  void shouldInsertAUserWithoutParameterTypeInXmlElement() {
+    try (SqlSession sqlSession = sqlSessionFactory.openSession()) {
+      XmlMapper mapper = sqlSession.getMapper(XmlMapper.class);
+      User user = new User();
+      user.setId(2);
+      user.setColor(Color.BLUE);
+      mapper.insertUser(user);
+      User result = sqlSession.getMapper(Mapper.class).getUser(2);
+      assertEquals(Color.BLUE, result.getColor());
+    }
+  }
+
 }

src/test/java/org/apache/ibatis/submitted/enum_interface_type_handler/XmlMapper.java

@@ -0,0 +1,20 @@
+/**
+ *    Copyright 2009-2019 the original author or authors.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+package org.apache.ibatis.submitted.enum_interface_type_handler;
+
+public interface XmlMapper {
+  int insertUser(User user);
+}

src/test/java/org/apache/ibatis/submitted/enum_interface_type_handler/XmlMapper.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+       Copyright 2009-2019 the original author or authors.
+
+       Licensed under the Apache License, Version 2.0 (the "License");
+       you may not use this file except in compliance with the License.
+       You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+       Unless required by applicable law or agreed to in writing, software
+       distributed under the License is distributed on an "AS IS" BASIS,
+       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+       See the License for the specific language governing permissions and
+       limitations under the License.
+
+-->
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="org.apache.ibatis.submitted.enum_interface_type_handler.XmlMapper">
+
+    <!-- without parameterType attribute -->
+    <insert id="insertUser">
+        insert into users (id, color) values (#{id}, #{color})
+    </insert>
+
+</mapper>

src/test/java/org/apache/ibatis/submitted/enum_interface_type_handler/mybatis-config.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <!--
 
-       Copyright 2009-2017 the original author or authors.
+       Copyright 2009-2019 the original author or authors.
 
        Licensed under the Apache License, Version 2.0 (the "License");
        you may not use this file except in compliance with the License.
@@ -39,5 +39,6 @@
   </environments>
   <mappers>
     <mapper class="org.apache.ibatis.submitted.enum_interface_type_handler.Mapper" />
+    <mapper class="org.apache.ibatis.submitted.enum_interface_type_handler.XmlMapper" />
   </mappers>
 </configuration>