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java-design-patterns/dao
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Ilkka Seppälä 9ec0935a1c Merge pull request #532 from leogtzr/master 
Adding initialization-on-demand idiom and noninstantiable class instead of interface constant idiom
2017-01-23 08:21:07 +02:00
..
etc
Update URM Version to 1.4.4 and regenerated all puml files
2016-11-26 12:51:06 +01:00
src
Changing constant interface pattern with a Noninstantiable class
2016-12-24 14:49:41 -07:00
pom.xml
Set version for next development iteration
2016-12-31 10:24:26 +02:00
README.md
Work on #190: Commit initial pumlId's added by the script
2016-08-30 15:10:34 +02:00

README.md

layout, title, folder, permalink, pumlid, categories, tags
layout title folder permalink pumlid categories tags
pattern Data Access Object dao /patterns/dao/ 5SR14OKW30N0LhG0oVrt4o6ZE12Ov4NR_thQNQlc5aN2sd82qtz4naywAixOmyNoK8WYvT6fjdWOR7JnpLiHhuTkam4nTUhiRwZm847-J64zpUZj3m00 Persistence Tier
Java
Difficulty-Beginner

Intent

Object provides an abstract interface to some type of database or other persistence mechanism.

alt text

Applicability

Use the Data Access Object 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