gaspersic/java-design-patterns
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
java-design-patterns/repository
History
Alexander Ivanov 4904d7eea0 #1021: Fix checkstyle warnings by changing the license header template (#1027) 
* Add custom license header style in order to comply with Google's Checkstyle format

* Update license headers to comply with Google's Checkstyle format
2019-10-22 08:15:35 +03:00
..
etc
#190 Remove urm plugin
2017-11-28 20:55:52 +02:00
src
#1021: Fix checkstyle warnings by changing the license header template (#1027)
2019-10-22 08:15:35 +03:00
pom.xml
Update license headers
2019-10-12 20:05:54 +03:00
README.md
Added one more Credit/Article about the benefits of Repository pattern (#882)
2019-07-29 21:31:42 +03:00

README.md

layout, title, folder, permalink, categories, tags
layout title folder permalink categories tags
pattern Repository repository /patterns/repository/ Persistence Tier
Java
Difficulty-Intermediate
Spring

Intent

Repository layer is added between the domain and data mapping layers to isolate domain objects from details of the database access code and to minimize scattering and duplication of query code. The Repository pattern is especially useful in systems where number of domain classes is large or heavy querying is utilized.

alt text

Applicability

Use the Repository pattern when

  • the number of domain objects is large
  • you want to avoid duplication of query code
  • you want to keep the database querying code in single place
  • you have multiple data sources

Real world examples

Credits