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kuni katsuya

ListCollectionView/ArrayCollection tip for using GraniteDS - Ross Henderson - 0 views

blog.rosshenderson.info/...ection-tip-for-using-graniteds

graniteds tip ListCollectionView ArrayCollection

shared by kuni katsuya on 06 Jun 12 - No Cached
  • The reason why GraniteDS generates properties of type ListCollectionView is simple : it internally uses collections implementations that extend ListCollectionView and not ArrayCollection. But as you have described when you manually assign collections, you should use ArrayCollection. It’s exactly the same as in Java when you do List list = new ArrayList().
  • ListCollectionView/ArrayCollection tip for using GraniteDS
  • new ListCollectionView();
  • ...4 more annotations...
  • instead of this:
  • do this:
  • new ArrayCollection();
  • I’m not really sure what the deal is
    • kuni katsuya
      kuni katsuya on 01 Nov 12
       
      see comment from william (wdrai) below (graniteds guy)
kuni katsuya

12 Tips On JPA Domain Modelling - With Existing Database - Thinking In Structs Not Objects : Adam Bien's Weblog - 0 views

www.adam-bien.com/...11_tips_on_jpa_domain

jpa best practices DomainModeling

shared by kuni katsuya on 24 Jul 12 - No Cached
  • think in structs. Try to as frictionless as possible export/generate the JPA-entities from the existing database
  • Implement a very thin facade / transaction boundary
  • @Stateless Bean (EJB 3)
  • ...10 more annotations...
  • If the JPA entities still do not look right, try to apply some JPA tricks like mapping a JPA-entity to several tables, or even map JPA-entities to DB-views, to improve the situation
  • Rename the classes into some more meaningful. The attribute, class names are in general everything but not fluent
  • Junit. Purpose: JPA mapping verification
  • Thinking In Structs Not Objects
  • 12 Tips On JPA Domain Modelling
  • - With Existing Database -
    • kuni katsuya
      kuni katsuya on 12 Oct 12
       
      strategy when constrained by baggage of *legacy database* schema, NOT for a green fields project!
  • Execute the "Unit" tests after every change
  • even better get rid of them
  • domain objects are
  • semi-objectoriented
kuni katsuya

In Relation To...  Some tips on using Hibernate in JBoss AS 7.0.0.Final - 1 views

relation.to/...singHibernateInJBossAS700Final

shared by kuni katsuya on 14 Jun 12 - No Cached
  • Some tips on using Hibernate in JBoss AS 7.0.0.Final
  • migrating Hibernate 3-based applications to JBoss AS7,
  • Container-deployed persistence units
  • ...6 more annotations...
  • Application-created persistence units
  • Native Hibernate applications
  • native (i.e. non-JPA)
  • JPA applications that create an EntityManagerFactory on their own, either using the PersistenceProvider SPI directly or through an intermediary mechanism such as Spring's LocalContainerEntityManagerFactoryBean
  • standard Java EE-applications may ignore the provider implementation and rely on the standard features provided by the container - JBoss AS7 supporting standard JPA 1.0 and 2.0
  • future versions of JBoss AS7 it will be possible to use alternative persistence provider implementations
kuni katsuya

Collaboration Best Practices - 3 Reasons Interruptions are Hurting Your Team's Productivity | Atlassian Blogs - 0 views

blogs.atlassian.com/...nterruptions-hurt-productivity

agile productivity anti-patterns

shared by kuni katsuya on 01 Nov 12 - No Cached
  • Interruptions Hurt Your Team’s Productivity
  • Productivity is futile in the face of constant interruptions
  • work is scattered through shared network drives, hard drives, and email
    • kuni katsuya
      kuni katsuya on 01 Nov 12
       
      or sharepoint, confluence, jira, word docs, pdf docs, spreadsheets, walled post-it notes, emails... not universally or easily searchable. arghhh...
  • ...17 more annotations...
  • Charging towards a common goal is difficult when:
  • center on meetings alone.
  • When disorganization and uncertainty is the norm, clarification and re-clarification is needed to regularly keep a team focused and working together
  •  waste A LOT of your time
  • Information isn’t located in a centralized place so it isn’t easily accessible to everyone.
  • It’s just easier to ask someone else because they are a Subject Matter Expert (SME). Both.
  • 2. Interruptions encourage multi-tasking, which is bad
  • 1. Most interruptions are trivial and could be avoided
  • it takes most people 16 minutes to refocus after sending an email while doing other work
    • kuni katsuya
      kuni katsuya on 01 Nov 12
       
      it takes most software engineers *at least* 20-30 minutes to get back into 'the zone' following an unrelated distraction
  • No wonder people like to work from home!
  • To perform at your productive best, you need your best focus, something that’s unachievable when you’re constantly interrupted
  • 3. Recovering from interruptions takes longer than you think
  • Between email, meetings, and interruptions (both active and passive),
  • there’s hardly time to get any work done while you’re actually at work.
  • Pro-Tip: Only turn on email and instant message when you need to use them
    • kuni katsuya
      kuni katsuya on 01 Nov 12
       
      ie. never?  ;) though then, you end up with 5,932 unread emails in your inbox and 113 angry co-workers!
  • To combat such interruption, check these tools 3 times a day – when you first get into the office in the morning, around lunch, and before going home for the night – and turn them off otherwise.
  • reduce the rate at which interruptions occur
kuni katsuya

Chapter 15. Data Management - 0 views

www.graniteds.org/...graniteds.datamanagement.html

graniteds data jpa flex javaee6 javaee

shared by kuni katsuya on 19 May 12 - No Cached
  • Data Management
  • Tide provides an integration between the Flex/LCDS concept of managed entities and the server persistence context (JPA or Hibernate)
  • Tide maintains a client-side cache of entity instances and ensures that every instance is unique in the Flex client context
  • ...5 more annotations...
  • highly recommended to use JPA optimistic locking in a multi-tier environment (@Version annotation)
  • Tip The easiest and recommended way for getting Tide enabled managed entities is to generate them from Java classes with Gas3 or the GDS Eclipse builder using the tide="true" option.
  • In a typical Flex/app server/database application, an entity lives in three layers: the Flex client the Hibernate/JPA persistence context the database
  • only invariant is the id.
  • id reliably links the different existing versions of the entity in the three layers
kuni katsuya

Dependency Injection in Java EE 6: Conversations (Part 4) - 0 views

www.theserverside.com/...Java-EE-6-Conversations-Part-4

javaee6 DependencyInjection DI

shared by kuni katsuya on 13 Sep 12 - Cached
kuni katsuya

Dependency Injection in Java EE 6 (Part 6) - 0 views

www.theserverside.com/...-Injection-in-Java-EE-6-Part-6

injection tutorial javaee6 CDI examples

shared by kuni katsuya on 30 Jul 12 - No Cached
  • one of the most important value propositions for frameworks like Spring has been the ability to easily extend the framework or integrate third-party solutions
  • SPI allows you to register your own beans, custom scopes, stereotypes, interceptors and decorators with CDI even if is it not included in the automatic scanning process (such as perhaps registering Spring beans as CDI beans), programmatically looking up CDI beans and injecting them into your own objects (such as injecting CDI beans into Spring beans) and adding/overriding annotation-metadata from other sources (such as from a database or property file)
  • SPI can be segmented into three parts. Interfaces like Bean, Interceptor and Decorator model container meta-data (there are a few other meta-data interfaces such as ObserverMethod, Producer, InjectionTarget, InjectionPoint, AnnotatedType, AnnotatedMethod, etc). Each meta-data object encapsulates everything that the CDI container needs to know about the meta-data type
kuni katsuya

15 Tips on JPA Rich Domain Modelling - Thinking In Objects - Not Mappings [For Greenfields] : Adam Bien's Weblog - 0 views

www.adam-bien.com/...10_tips_on_jpa_rich

jpa best practices DomainModeling

shared by kuni katsuya on 20 Jul 12 - No Cached
  • [For Greenfields]
  • Try to identify concepts and abstractions from the target domain. Use them as candidates for entities.
  • Do not obfuscate them with additional technical naming conventions like XYZEntity or "BOs".
  • ...10 more annotations...
  • Write unit tests
  • without involving the EntityManager
  • - Thinking In Objects
  • JPA Rich Domain Modelling
    • kuni katsuya
      kuni katsuya on 12 Oct 12
       
      strategy to use when less or unconstrained by legacy db schema baggage. ie. the *proper* and *ideal* way to model domain classes... using oo, not dumb structs!  :)
  • Build objects, not structs
  • Think about builders
  • Let the tool (JPA-provider) generate the DDL
    • kuni katsuya
      kuni katsuya on 12 Oct 12
       
      generated ddl can be optimized by hand if required
    • kuni katsuya
      kuni katsuya on 12 Oct 12
       
      eg. see step 12 below
  • Provide a lean facade/service layer
  • only contain crosscutting concerns
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