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kuni katsuya

Better JPA, Better JAXB, and Better Annotations Processing with Java SE 6 - 0 views

www.oracle.com/...marx-jse6-090753.html

java JPA XML

shared by kuni katsuya on 16 Oct 12 - No Cached
  • Better JPA, Better JAXB, and Better Annotations Processing with Java SE 6
kuni katsuya

Item 2: Consider a builder when faced with many constructor parameters | Creating and D... - 1 views

www.informit.com/...article.aspx

EfffectiveJava JoshuaBloch BuilderPattern

shared by kuni katsuya on 12 Oct 12 - No Cached
  • Item 2: Consider a builder when faced with many constructor parameters
  • kuni katsuya on 12 Oct 12
     
    "Item 2: Consider a builder when faced with many constructor parameters"
kuni katsuya

Generic CRUD Service aka DAO - EJB 3.1/0 Code - Only If You Really Needed : Adam Bien's... - 0 views

www.adam-bien.com/...generic_crud_service_aka_dao

javaee6 patterns GenericCrudService DAO ejb3.1

shared by kuni katsuya on 12 Oct 12 - Cached
  • Generic CRUD Service
  • The term Data Access Object (DAO)
  • is actually wrong
    • kuni katsuya
      kuni katsuya on 12 Oct 12
       
      this is one reason i hate using the term 'dao' in our ee6 project
  • ...7 more annotations...
  • easy with generics
  • create
  • find(
  • update(
  • delete(
  • CrudService
  • @TransactionAttribute(TransactionAttributeType.MANDATORY)
kuni katsuya

15 Tips on JPA Rich Domain Modelling - Thinking In Objects - Not Mappings [For Greenfie... - 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
kuni katsuya

12 Tips On JPA Domain Modelling - With Existing Database - Thinking In Structs Not Obje... - 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

Fetching Client IP Address and Header information in JBoss AS7 access log « J... - 0 views

middlewaremagic.com/jboss

jbossas7 AccessLog

shared by kuni katsuya on 11 Oct 12 - No Cached
  • Fetching Client IP Address and Header information in JBoss AS7 access log
  • “org.apache.catalina.valves.AccessLogValve”
  • More informations about this Valve can be found in the following link: http://tomcat.apache.org/tomcat-5.5-doc/config/valve.html#Access_Log_Valve
  • ...10 more annotations...
  • Some of the useful patterns
  • %h - Remote host name (or IP address if resolveHosts is false)
  • %a - Remote IP address
  • %u - Remote user that was authenticated (if any), else '-'
  • %r - First line of the request (method and request URI)
  • %s - HTTP status code of the response
  • %b - Bytes sent, excluding HTTP headers, or '-' if zero
  • %S - User session ID
  • %t - Date and time, in Common Log Format
  • %m - Request method (GET, POST, etc.)
  • kuni katsuya on 11 Oct 12
     
    "/subsystem=web/virtual-server=default-host/access-log=configuration:add(pattern="%h %l %u %t "%r" %s %b %{User-Agent}i %{JSESSIONID}c")"
kuni katsuya

Java Persistence/Relationships - Wikibooks, open books for an open world - 0 views

en.wikibooks.org/...Relationships

jpa cascade CascadeType.PERSIST

shared by kuni katsuya on 11 Oct 12 - No Cached
  • Cascading
  • following operations can be cascaded, as defined in the CascadeType enum:
  • PERSIST
  • ...11 more annotations...
  • If persist() is called on the
  • parent
  • and the
  • child
  • is also new, it will also be persisted
  • MERGE
  • REFRESH
  • REMOVE
  • . If remove() is called on the parent then the child will also be removed
  • . If merge() is called on the parent, then the child will also be merged
  • If refresh() is called on the parent then the child will also be refreshed
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