Group items matching "Java" in title, tags, annotations or url - SoftwareEngineering

intellij-java-google-style.xml - google-styleguide - Style guides for Google-originated... - 1 views

shared by kuni katsuya on 15 Aug 13 - No Cached

Effective Java - Still Effective After All These Years - YouTube - 0 views

www.youtube.com/watch java EfffectiveJava JoshuaBloch youtube presentations

shared by kuni katsuya on 12 Oct 12 - No Cached

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java - what is difference between EntityManager.find() and EntityManger.getReference()?... - 0 views

stackoverflow.com/...-and-entitymanger-getreference java JPA EntityManager find getReference

shared by kuni katsuya on 20 Nov 12 - No Cached

what is difference between EntityManager.find() and EntityManger.getReference()?
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find()
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return an initialized instance of your object
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...6 more annotations...
If it is not already loaded in the EntityManager, it is retrieved from the database
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getReference()
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is allowed to return a proxy instread of an initialized instance, if the entity has not been loaded in the EntityManager before
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In this proxy,
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only the primary key attribute is initialized
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Proxies can be created without hitting the database
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Package Design Checklist, General « The Amiable API - 0 views

theamiableapi.com/java-cl-section-1-1 java BestPractices ApiDesign

shared by kuni katsuya on 17 Nov 12 - No Cached

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VineetReynolds / Java EE 6-Galleria / wiki / DataModel - Bitbucket - 1 views

bitbucket.org/...DataModel javaee6 example jpa ejb jsf junit4 arquillian DomainDrivenDesign ddd DataModel

shared by kuni katsuya on 21 Nov 12 - No Cached

Many users can be associated with a group
- kuni katsuya on 21 Nov 12
  
  user:group = n:m (ie. many-to-many)
  
  <div class="cArrow"> </div><div class="cContentInner">user:group = n:m (ie. many-to-many)</div>
  
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Groups
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groupId.
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...5 more annotations...
A User
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userId
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Users can have many Albums
- kuni katsuya on 21 Nov 12
  
  user:album = 1:n
  
  <div class="cArrow"> </div><div class="cContentInner">user:album = 1:n</div>
  
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Album containing Photos
- kuni katsuya on 21 Nov 12
  
  album:photo = 1:n
  
  <div class="cArrow"> </div><div class="cContentInner">album:photo = 1:n</div>
  
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Physical Data Model
- kuni katsuya on 21 Nov 12
  
  ie. er model in database
  
  <div class="cArrow"> </div><div class="cContentInner">ie. er model in database</div>
  
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kuni katsuya on 21 Nov 12

Logical Data Model

<div class="cArrow"> </div><div class="cContentInner">Logical Data Model</div>

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Dependency injection discourages object-oriented programming? @ Blog of Adam Warski - 0 views

www.warski.org/...es-object-oriented-programming java javaee6 CDI CdiDependencyInjection OO Object-Oriented procedural DI DependencyInjection

shared by kuni katsuya on 12 Dec 12 - No Cached

Dependency injection discourages object-oriented programming?
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if you’re using DI, and you have an X entity, do you have an XService or XManager with lots of method where X is the first argument?
- kuni katsuya on 12 Dec 12
  
  evidence of the anti-pattern of procedural design in a java ee6 cdi application
  
  <div class="cArrow"> </div><div class="cContentInner">evidence of the anti-pattern of procedural design in a java ee6 cdi application</div>
  
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previous way is more procedural
- kuni katsuya on 12 Dec 12
  
  ie. ProductService.ship(Product,Customer)
  
  <div class="cArrow"> </div><div class="cContentInner">ie. ProductService.ship(Product,Customer)</div>
  
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service/manager is a set of procedures you can run, where the execution takes a product and a customer as arguments
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better
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OO approach
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not saying that achieving the above is not possible with a DI framework
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only that DI
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encourages the ProductService approach
- kuni katsuya on 12 Dec 12
  
  well, dependency injection, but moreover, the soa approach to service design tends to force otherwise intelligent software engineers into doing procedural design the services just end up being bags of method calls that implement any type of behavior, with the domain objects or entity beans being reduced to mere data structures with little responsibility or behavior beyond persistence. (which, in this anti-pattern, is typically mostly provided by the repository or dao class! ie. domain object crud)
  
  <div class="cArrow"> </div><div class="cContentInner">well, dependency injection, but moreover, the soa approach to service design tends to force otherwise intelligent software engineers into doing procedural design the services just end up being bags of method calls that implement any type of behavior, with the domain objects or entity beans being reduced to mere data structures with little responsibility or behavior beyond persistence. (which, in this anti-pattern, is typically mostly provided by the repository or dao class! ie. domain object crud)</div>
  
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it’s just easier
- kuni katsuya on 12 Dec 12
  
  ... if you just blindly follow the anti-pattern, of course ;)
  
  <div class="cArrow"> </div><div class="cContentInner">... if you just blindly follow the anti-pattern, of course ;)</div>
  
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many benefits
- kuni katsuya on 12 Dec 12
  
  with the procedural approach, you also cannot implement polymorphic behavior, for instance
  
  <div class="cArrow"> </div><div class="cContentInner">with the procedural approach, you also cannot implement polymorphic behavior, for instance</div>
  
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builder
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fluent interface
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it’s not for small projects
- kuni katsuya on 12 Dec 12
  
  fuckwhat? small or big matters not. if di is applied poorly, regardless of project size, it's an anti-pattern! disregard these comments!
  
  <div class="cArrow"> </div><div class="cContentInner">fuckwhat? small or big matters not. if di is applied poorly, regardless of project size, it's an anti-pattern! disregard these comments!</div>
  
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problems with DI frameworks:
- kuni katsuya on 12 Dec 12
  
  not sure i agree with these points, but will refuse in a later sticky note
  
  <div class="cArrow"> </div><div class="cContentInner">not sure i agree with these points, but will refuse in a later sticky note</div>
  
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Listing Directory Contents with JDK 1.7 and NIO.2 : Adam Bien's Weblog - 0 views

www.adam-bien.com/...ng_directory_contents_with_jdk java lazy-loading java7 NIO.2

shared by kuni katsuya on 12 Dec 12 - No Cached

Listing Directory Contents with JDK 1.7 and NIO.2
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DirectoryStream
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"lazy" Iterable
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...2 more annotations...
NIO.2 version is better suitable for
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directories with lots of contents
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jsonschema2pojo - 0 views

www.jsonschema2pojo.org JSON JSONSchema Java CodeGeneration

shared by kuni katsuya on 20 Mar 13 - No Cached