Intent++

data-mapper/index.md

@@ -1,26 +1,25 @@
----
-layout: pattern
-title: Data Mapper
-folder: data-mapper
-permalink: /patterns/dm/
-categories: Persistence Tier
-tags:
- - Java
- - Difficulty-Beginner
----
-
-## Intent
-Object provides an abstract interface to some type of database or
-other persistence mechanism.
-
-![alt text](./etc/data-mapper.png "Data Mapper")
-
-## Applicability
-Use the Data Mapper in any of the following situations
-
-* when you want to consolidate how the data layer is accessed
-* when you want to avoid writing multiple data retrieval/persistence layers
-
-## Credits
-
-* [Data Mapper](http://richard.jp.leguen.ca/tutoring/soen343-f2010/tutorials/implementing-data-mapper/)
+---
+layout: pattern
+title: Data Mapper
+folder: data-mapper
+permalink: /patterns/dm/
+categories: Persistence Tier
+tags:
+ - Java
+ - Difficulty-Beginner
+---
+
+## Intent
+A layer of mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself
+
+![alt text](./etc/data-mapper.png "Data Mapper")
+
+## Applicability
+Use the Data Mapper in any of the following situations
+
+* when you want to consolidate how the data layer is accessed
+* when you want to avoid writing multiple data retrieval/persistence layers
+
+## Credits
+
+* [Data Mapper](http://richard.jp.leguen.ca/tutoring/soen343-f2010/tutorials/implementing-data-mapper/)