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java-design-patterns/data-mapper/README.md
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Ilkka Seppälä 4108f86177 docs: Prepare for new website launch (#2149)
* Changed database implementation. Removed static objects.

* Fix Logs

* Fix 40 errors from checkstyle plugin run. 139 left))

* Fix CacheStore errors from checkstyle plugin 107 left

* Fix last errors in checkstyle.

* Fix sonar issues

* Fix issues in VALIDATE phase

* Fix Bug with mongo connection. Used "Try with resources"

* Add test

* Added docker-compose for mongo db. MongoDb db work fixed.

* Provided missing tests

* Comments to start Application with mongo.

* Fix some broken links

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* Update filename

* Fix some links in localization folders

* Fix link

* Update frontmatters

* Work on patterns index page

* Work on index page

* Fixes according PR comments. Mainly Readme edits.

* fix frontmatter

* add missing png

* Update pattern index.md

* Add index.md for Chinese translation

* update image paths

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* add generated puml

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* Update the rest of the EN and ZH patterns to conform with the new website

Co-authored-by: Victor Zalevskii <zvictormail@gmail.com>
2022-10-23 16:29:49 +03:00

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title, category, language, tags
title category language tags
Data Mapper Architectural en
Decoupling

Intent

A layer of mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself

Class diagram

alt text

Applicability

Use the Data Mapper in any of the following situations

  • when you want to decouple data objects from DB access layer
  • when you want to write multiple data retrieval/persistence implementations

Credits