fixes #93 When autoMapping is set to true for a resultMap, autoMapping should be applied to the nested collection and/or association as well.

Author: harawata

src/main/java/org/apache/ibatis/executor/resultset/DefaultResultSetHandler.java

@@ -330,7 +330,7 @@ private Object getRowValue(ResultSetWrapper rsw, ResultMap resultMap, CacheKey r
     if (resultObject != null && !typeHandlerRegistry.hasTypeHandler(resultMap.getType())) {
       final MetaObject metaObject = configuration.newMetaObject(resultObject);
       boolean foundValues = resultMap.getConstructorResultMappings().size() > 0;
-      if (shouldApplyAutomaticMappings(resultMap, !AutoMappingBehavior.NONE.equals(configuration.getAutoMappingBehavior()))) {        
+      if (shouldApplyAutomaticMappings(resultMap, null, !AutoMappingBehavior.NONE.equals(configuration.getAutoMappingBehavior()))) {        
         foundValues = applyAutomaticMappings(rsw, resultMap, metaObject, null) || foundValues;
       }
       foundValues = applyPropertyMappings(rsw, resultMap, metaObject, lazyLoader, null) || foundValues;
@@ -341,8 +341,9 @@ private Object getRowValue(ResultSetWrapper rsw, ResultMap resultMap, CacheKey r
     return resultObject;
   }
 
-  private boolean shouldApplyAutomaticMappings(ResultMap resultMap, boolean def) {
-    return resultMap.getAutoMapping() != null ? resultMap.getAutoMapping() : def;
+  private boolean shouldApplyAutomaticMappings(ResultMap resultMap, Boolean parentAutoMapping, boolean def) {
+    return resultMap.getAutoMapping() != null ? resultMap.getAutoMapping()
+      : parentAutoMapping != null ? parentAutoMapping : def;
   }
 
   private ResultLoaderMap instantiateResultLoaderMap() {
@@ -725,9 +726,9 @@ private void handleRowValuesForNestedResultMap(ResultSetWrapper rsw, ResultMap r
           nestedResultObjects.clear();
           storeObject(resultHandler, resultContext, rowValue, parentMapping, rsw.getResultSet());
         }
-        rowValue = getRowValue(rsw, discriminatedResultMap, rowKey, rowKey, null, partialObject);
+        rowValue = getRowValue(rsw, discriminatedResultMap, rowKey, rowKey, null, partialObject, null);
       } else {
-        rowValue = getRowValue(rsw, discriminatedResultMap, rowKey, rowKey, null, partialObject);
+        rowValue = getRowValue(rsw, discriminatedResultMap, rowKey, rowKey, null, partialObject, null);
         if (partialObject == null) {
           storeObject(resultHandler, resultContext, rowValue, parentMapping, rsw.getResultSet());
         }
@@ -742,7 +743,7 @@ private void handleRowValuesForNestedResultMap(ResultSetWrapper rsw, ResultMap r
   // GET VALUE FROM ROW FOR NESTED RESULT MAP
   //
 
-  private Object getRowValue(ResultSetWrapper rsw, ResultMap resultMap, CacheKey combinedKey, CacheKey absoluteKey, String columnPrefix, Object partialObject) throws SQLException {
+  private Object getRowValue(ResultSetWrapper rsw, ResultMap resultMap, CacheKey combinedKey, CacheKey absoluteKey, String columnPrefix, Object partialObject, Boolean parentAutoMapping) throws SQLException {
     Object resultObject = partialObject;
     if (resultObject != null) {
       final MetaObject metaObject = configuration.newMetaObject(resultObject);
@@ -755,7 +756,7 @@ private Object getRowValue(ResultSetWrapper rsw, ResultMap resultMap, CacheKey c
       if (resultObject != null && !typeHandlerRegistry.hasTypeHandler(resultMap.getType())) {
         final MetaObject metaObject = configuration.newMetaObject(resultObject);
         boolean foundValues = resultMap.getConstructorResultMappings().size() > 0;
-        if (shouldApplyAutomaticMappings(resultMap, AutoMappingBehavior.FULL.equals(configuration.getAutoMappingBehavior()))) {
+        if (shouldApplyAutomaticMappings(resultMap, parentAutoMapping, AutoMappingBehavior.FULL.equals(configuration.getAutoMappingBehavior()))) {
           foundValues = applyAutomaticMappings(rsw, resultMap, metaObject, columnPrefix) || foundValues;
         }        
         foundValues = applyPropertyMappings(rsw, resultMap, metaObject, lazyLoader, columnPrefix) || foundValues;
@@ -792,7 +793,7 @@ private boolean applyNestedResultMappings(ResultSetWrapper rsw, ResultMap result
             boolean knownValue = (rowValue != null);
             final Object collectionProperty = instantiateCollectionPropertyIfAppropriate(resultMapping, metaObject);            
             if (anyNotNullColumnHasValue(resultMapping, columnPrefix, rsw.getResultSet())) {
-              rowValue = getRowValue(rsw, nestedResultMap, combinedKey, rowKey, columnPrefix, rowValue);
+              rowValue = getRowValue(rsw, nestedResultMap, combinedKey, rowKey, columnPrefix, rowValue, resultMap.getAutoMapping());
               if (rowValue != null && !knownValue) {
                 if (collectionProperty != null) {
                   final MetaObject targetMetaObject = configuration.newMetaObject(collectionProperty);

src/test/java/org/apache/ibatis/submitted/automapping/AutomappingTest.java

@@ -63,6 +63,22 @@ public void shouldGetAUser() {
 		}
 	}
 
+	@Test
+	public void shouldGetAUserWithPets() {
+	  SqlSession sqlSession = sqlSessionFactory.openSession();
+	  try {
+	    Mapper mapper = sqlSession.getMapper(Mapper.class);
+	    User user = mapper.getUserWithPets(2);
+	    Assert.assertEquals(Integer.valueOf(2), user.getId());
+	    Assert.assertEquals("User2", user.getName());
+	    Assert.assertEquals(2, user.getPets().size());
+	    Assert.assertEquals(Integer.valueOf(12), user.getPets().get(0).getPetId());
+	    Assert.assertEquals("Kotetsu", user.getPets().get(1).getPetName());
+	  } finally {
+	    sqlSession.close();
+	  }
+	}
+
 	@Test
 	public void shouldGetBooks() {
 		//set automapping to default partial

src/test/java/org/apache/ibatis/submitted/automapping/CreateDB.sql

@@ -28,6 +28,17 @@ create table books (
   name varchar(20)
 );
 
+create table pets (
+  id int,
+  owner int,
+  name varchar(20)
+);
+
 insert into users (id, name) values(1, 'User1');
+insert into users (id, name) values(2, 'User2');
+
+insert into books (version, name) values(99, 'Learn Java');
 
-insert into books (version, name) values(99, 'Learn Java');
+insert into pets (id, owner, name) values(11, 1, 'Ren');
+insert into pets (id, owner, name) values(12, 2, 'Chien');
+insert into pets (id, owner, name) values(13, 2, 'Kotetsu');

src/test/java/org/apache/ibatis/submitted/automapping/Mapper.java

@@ -21,6 +21,8 @@ public interface Mapper {
 
   User getUser(Integer id);
 
+  User getUserWithPets(Integer id);
+
   List<Book> getBooks();
 
   Article getArticle();

src/test/java/org/apache/ibatis/submitted/automapping/Mapper.xml

@@ -26,6 +26,19 @@
 
 	<resultMap type="org.apache.ibatis.submitted.automapping.User" id="result" autoMapping="true">
 	</resultMap>
+
+	<select id="getUserWithPets" resultMap="resultWithPets">
+		select users.id, users.name, pets.id as petId, pets.name as petName from users
+		left join pets on pets.owner = users.id
+		where users.id = #{id}
+	</select>
+
+	<resultMap type="org.apache.ibatis.submitted.automapping.User" id="resultWithPets" autoMapping="true">
+		<id column="id" property="id"/>
+		<collection property="pets" ofType="org.apache.ibatis.submitted.automapping.Pet">
+			<id column="petId" property="petId"/>
+		</collection>
+	</resultMap>
 
 	<resultMap type="org.apache.ibatis.submitted.automapping.Book" id="bookResult">
 		 <result property="name" column="name"/>

src/test/java/org/apache/ibatis/submitted/automapping/Pet.java

@@ -0,0 +1,38 @@
+/*
+ *    Copyright 2009-2013 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.automapping;
+
+public class Pet {
+
+  private Integer petId;
+  private String petName;
+
+  public Integer getPetId() {
+    return petId;
+  }
+
+  public void setPetId(Integer petId) {
+    this.petId = petId;
+  }
+
+  public String getPetName() {
+    return petName;
+  }
+
+  public void setPetName(String petName) {
+    this.petName = petName;
+  }
+}

src/test/java/org/apache/ibatis/submitted/automapping/User.java

@@ -15,10 +15,13 @@
  */
 package org.apache.ibatis.submitted.automapping;
 
+import java.util.List;
+
 public class User {
 
   private Integer id;
   private String name;
+  private List<Pet> pets;
 
   public Integer getId() {
     return id;
@@ -35,4 +38,12 @@ public String getName() {
   public void setName(String name) {
     this.name = name;
   }
+
+  public List<Pet> getPets() {
+    return pets;
+  }
+
+  public void setPets(List<Pet> pets) {
+    this.pets = pets;
+  }
 }