add resultmapId to @many and @one

Author: moonService

src/main/java/org/apache/ibatis/annotations/Many.java

@@ -33,6 +33,12 @@
 @Retention(RetentionPolicy.RUNTIME)
 @Target({})
 public @interface Many {
+  /**
+   * Returns the id that retrieves result map.
+   *
+   * @return the id that retrieves result map.
+   */
+  String resultMapId() default "";
   /**
    * Returns the statement id that retrieves collection.
    *

src/main/java/org/apache/ibatis/annotations/One.java

@@ -33,6 +33,12 @@
 @Retention(RetentionPolicy.RUNTIME)
 @Target({})
 public @interface One {
+  /**
+   * Returns the id that retrieves result map.
+   *
+   * @return the id that retrieves result map.
+   */
+  String resultMapId() default "";
   /**
    * Returns the statement id that retrieves single object.
    *

src/main/java/org/apache/ibatis/builder/annotation/MapperAnnotationBuilder.java

@@ -552,7 +552,7 @@ private void applyResults(Result[] results, Class<?> resultType, List<ResultMapp
           result.javaType() == void.class ? null : result.javaType(),
           result.jdbcType() == JdbcType.UNDEFINED ? null : result.jdbcType(),
           hasNestedSelect(result) ? nestedSelectId(result) : null,
-          null,
+          hasNestedResultMap(result) ? nestedResultMapId(result) : null,
           null,
           null,
           typeHandler,
@@ -564,6 +564,24 @@ private void applyResults(Result[] results, Class<?> resultType, List<ResultMapp
     }
   }
 
+  private String nestedResultMapId(Result result) {
+    String resultMapId = result.one().resultMapId();
+    if (resultMapId.length() < 1) {
+      resultMapId = result.many().resultMapId();
+    }
+    if (!resultMapId.contains(".")) {
+      resultMapId = type.getName() + "." + resultMapId;
+    }
+    return resultMapId;
+  }
+
+  private boolean hasNestedResultMap(Result result) {
+    if (result.one().resultMapId().length() > 0 && result.many().resultMapId().length() > 0) {
+      throw new BuilderException("Cannot use both @One and @Many annotations in the same @Result");
+    }
+    return result.one().resultMapId().length() > 0 || result.many().resultMapId().length() > 0;
+  }
+
   private String nestedSelectId(Result result) {
     String nestedSelect = result.one().select();
     if (nestedSelect.length() < 1) {