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Quick start with GraniteDS | Granite Data Services - 0 views

granitedataservices.com/...quick-start-with-graniteds

graniteds tutorial eclipse-plugin quickstart example

shared by kuni katsuya on 05 Jun 12 - No Cached

install the GraniteDS wizard and builder plugins in Eclipse
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graniteds-tide-cdi-jpa
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you don’t need to have a Flex SDK installed as it will be retrieved from the Maven repository
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...12 more annotations...
3 separate projects: a Java project, a Flex project and a Webapp project.
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GraniteDS archetypes
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archetypeGroupId: org.graniteds.archetypes archetypeVersion: 1.1.0.GA archetypeArtifactId:
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Maven 3.x required
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mvn archetype:generate    -DarchetypeGroupId=org.graniteds.archetypes    -DarchetypeArtifactId=graniteds-tide-spring-jpa-hibernate    -DarchetypeVersion=1.1.0.GA    -DgroupId=org.example    -DartifactId=springgds    -Dversion=1.0-SNAPSHOT
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cd springgdsmvn clean package
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build the project
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CDI archetype requires a Java EE 6 server and uses an embedded GlassFish
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cd webappmvn embedded-glassfish:run
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With the Eclipse Maven integration (the M2E plugin), you can simply choose one of the archetypes when doing New Maven Project.
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mvn war:war
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two very easy ways to quickly create a new GraniteDS project
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Dynamic, typesafe queries in JPA 2.0 - 0 views

www.ibm.com/...j-typesafejpa

jpa metamodel typesafe query

shared by kuni katsuya on 07 Jun 12 - No Cached

java - Flex+JPA/Hibernate+BlazeDS+MySQL how to debug this monster? - Stack Overflow - 0 views

stackoverflow.com/...ysql-how-to-debug-this-monster

graniteds flex blazeds debugging

shared by kuni katsuya on 20 Sep 12 - No Cached

Set break points in my Java code Start up the Java application server with the appropriate debug JVM properties set (e.g. -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n) From Eclipse, I attach a remote debugger to the app server on the default port 8000. The Java Debugger will open up when a break point is hit. Set breakpoints in my Flex application (or one of its modules). From Eclipse (with Flash Builder) I launch a debug configuration for my Flex app. The Flex Debugger will open up when a break point is hit. At this point I have two debuggers open and everything work great. Two other things I do: a) extend the transaction system timeout, so it doesn't get trigger while I am sitting there think for a few minutes b) use Charles Proxy (in reverse proxy mode) inbetween the client and server to watch the AMF traffic and view payloads, etc.
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Flex+JPA/Hibernate+BlazeDS+MySQL how to debug this monster?
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Selling Weld and EE6 | Weld | JBoss Community - 0 views

community.jboss.org/...656586

javaee6 weld Spring GavinKing

shared by kuni katsuya on 28 Sep 12 - No Cached

regarding the issue of selling Weld and EE6 to developers/shops....
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How bout a JdbcTemplate Spring equivalent in the case of projects using legacy db schemas
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portable extension to Weld
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...32 more annotations...
William Drai
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Honestly I don't see any value in switching to CDI if it is
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to reproduce the same awful patterns
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please not this Dao/Template mess
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Gavin King
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Their template pattern is a solution in search of a problem
- kuni katsuya on 28 Sep 12
  
  gold! :)
  
  <div class="cArrow"> </div><div class="cContentInner">gold! :)</div>
  
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to reproduce the same awful patterns
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please not this Dao/Template mess
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Because, of course, there are no other well-known patterns for dealing with boiler-plate cleanup code and connection leaks.
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This is exactly the kind of
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brain-damage that Spring does to people!
- kuni katsuya on 28 Sep 12
  
  platinum!!!
  
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It gives people a
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half-assed solution
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and somehow shuts down their brains so they
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stop asking themselves how this solution could be improved upon
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It's a very impressive magic trick, and I wish I knew how to do it myself. But then, I'm just not like that. I'm always trying to poke holes in things - whether they were Invented Here or Not.
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but that might be too high-level for your taste. Their are other, less-abstract options.
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exception handling, this is one area where Spring does a good job: "The Spring Framework's handling of SQLException is one of its most useful features in terms of enabling easier JDBC development and maintenance. The Spring Framework provides JDBC support that abstracts SQLException and provides a DAO-friendly, unchecked exception hierarchy."
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Utter nonsense and dishonest false advertising
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Automatic connection closing (and other boiler-plate code) is obviously a hard requirement to be handled by the fwk.
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Pffffff. It's a trivial requirement which I can solve in my framework with two lines of code in a @Disposes method. Did you see any connection handling in the code above?
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I mean, seriously guys. The Spring stuff is trivial and not even very elegant. I guess it's easier for me to see that, since I spent half my career thinking about data access and designing data access APIs. But even so...
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I don't understand. You hate the ability to write typesafw SQL that much?
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Gavin King
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Methods with long argument lists are a code smell.
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It's something Spring copied from Hibernate 1.x, back in the days before varargs
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It's something we removed in Hibernate2 and JPA.
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there are a bunch of people
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who don't want to use JPA.
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They don't understand, or see the value of, using managed objects to represent their persistent data.
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Um. Why? Why would that be a bad thing? I imagine that any app with 1000 queries has tens of thousands of classes already. What's the problem? Why is defining a class worse than writing a method?
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Are you working from some totally bizarre metric where you measure code quality by number of classes?
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Java Persistence/Inheritance - Wikibooks, open books for an open world - 0 views

en.wikibooks.org/...Inheritance

java jpa inheritance @Inheritance @MappedSuperclass

shared by kuni katsuya on 24 Sep 12 - No Cached

Inheritance
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hardest part of persisting inheritance is choosing how to represent the inheritance in the database
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There are three inheritance strategies defined from the InheritanceType enum,
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...101 more annotations...
SINGLE_TABLE
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TABLE_PER_CLASS
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JOINED
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Single table inheritance is the default
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@MappedSuperclass
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@Inheritance
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mapped superclass is
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not a persistent class
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but allow common mappings to be define for its subclasses
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Single Table Inheritance
- kuni katsuya on 24 Sep 12
  
  implemented as a sparse table. ie. all attributes from all entities end up as columns in the 'super' table
  
  <div class="cArrow"> </div><div class="cContentInner">implemented as a sparse table. ie. all attributes from all entities end up as columns in the 'super' table</div>
  
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single table is used to store all of the instances of the entire inheritance hierarchy
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table will have a column for
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every attribute
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every class
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in the hierarchy
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discriminator column
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is used to determine which class the particular row belongs to
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abstract
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Project
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extends Project
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extends Project
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@DiscriminatorValue("S")
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@DiscriminatorValue("L")
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@DiscriminatorColumn(name="PROJ_TYPE")
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@Inheritance
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@Table(name="PROJECT")
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single table inheritance
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Joined, Multiple Table Inheritance
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mirrors the object model in the data model
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table is defined for each class in the inheritance hierarchy to store only the local attributes of that class
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Each table in the hierarchy must also store the object's id (primary key), which is
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only defined in the root class
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share the same id attribute
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joined inheritance
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@Inheritance(strategy=
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InheritanceType.JOINED
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@DiscriminatorColumn(name="PROJ_TYPE")
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@Table(name="PROJECT")
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abstract
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Project
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@DiscriminatorValue("L")
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@Table(name=
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"LARGEPROJECT"
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LargeProject
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Project
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@DiscriminatorValue("S")
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@Table(name=
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"SMALLPROJECT"
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SmallProject
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Project
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Table Per Class Inheritance
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Advanced
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table is defined for
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each concrete class
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in the inheritance hierarchy to store
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all the attributes
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of that class and
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all of its superclasses
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table per class inheritance
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@Inheritance(strategy=
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InheritanceType.TABLE_PER_CLASS
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abstract
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Project
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@Table(name="LARGEPROJECT")
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LargeProject
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Project
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@Table(name="SMALLPROJECT")
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SmallProject
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Project
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Mapped Superclasses
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similar to table per class inheritance, but does not allow querying, persisting, or relationships to the superclass
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mapped superclass
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@MappedSuperclass
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abstract
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Project
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@Column(name="NAME")
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@Table(name="LARGEPROJECT")
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LargeProject
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Project
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@AttributeOverride
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"PROJECT_NAME"
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"name"
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@Table("SMALLPROJECT")
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SmallProject
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Project
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cannot have a relationship to a mapped superclass
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Joined, Multiple Table Inheritance
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oined, Multiple Table Inheritance
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abstract
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abstract c
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extends Project
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Mapped Superclasses
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Mapped Superclasses
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apped Superclasses
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allows inheritance to be used in the object model, when it does not exist in the data model
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@MappedSuperclass
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MappedSuperclass
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abstract
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abstract
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extends Project
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extends Project
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Java Persistence/JPQL BNF - Wikibooks, open books for an open world - 1 views

en.wikibooks.org/...JPQL_BNF

jpa JPQL

shared by kuni katsuya on 02 Oct 12 - No Cached

Java 5 EnumUserType | Hibernate | JBoss Community - 0 views

community.jboss.org/...Java5EnumUserType

java Hibernate enum JPA parameterized EnumUserType

shared by kuni katsuya on 11 Nov 12 - No Cached

Java 5 EnumUserType
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[#DELTASPIKE-60] Review and discuss a generic DAO API - ASF JIRA - 1 views

issues.apache.org/...DELTASPIKE-60

java javaee6 CDI ApacheDeltaSpike JPA GenericCrudService GenericDAO

shared by kuni katsuya on 19 Nov 12 - No Cached

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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[#ANN-140] Discriminator column not supported with JOINED strategy - Hibernate JIRA - 0 views

hibernate.onjira.com/...ANN-140

java JPA inheritance mapping Hibernate

shared by kuni katsuya on 20 Nov 12 - No Cached

Hibernate does not need a discriminator
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because Hibernate is better than these other inferior implementations
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It is allowed for
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...2 more annotations...
inferior implementations
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of the JOINED mapping strategy which require a discriminator
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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
  
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Album containing Photos
- kuni katsuya on 21 Nov 12
  
  album:photo = 1:n
  
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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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Lazy Loading Entities In Views Challenge--Reader's Question And Answer : Adam Bien's We... - 0 views

www.adam-bien.com/...lazy_loading_entities_in_views

java javaee6 anti-patterns DesignPatterns lazy-loading EagerFetch JPA

shared by kuni katsuya on 12 Dec 12 - No Cached

Lazy Loading Entities In Views
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class User
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Address
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...10 more annotations...
Friend
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addresses are lazily loaded
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detached mode already in the controller
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eagerly loaded
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It gets ugly pretty quickly
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JXPath relations
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Use Fetch Joins they are designed to prefetch lazy relations
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Anti-Pattern
- kuni katsuya on 12 Dec 12
  
  DO NOT USE THE OPEN-SESSION-IN-VIEW *ANTI*-PATTERN
  
  <div class="cArrow"> </div><div class="cContentInner">DO NOT USE THE OPEN-SESSION-IN-VIEW *ANTI*-PATTERN</div>
  
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Use Stateful Session Beans
- kuni katsuya on 12 Dec 12
  
  do not penalty: death, or at least a public flogging
  
  <div class="cArrow"> </div><div class="cContentInner">do not penalty: death, or at least a public flogging</div>
  
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eager load the relations
- kuni katsuya on 12 Dec 12
  
  just don't hard-code this eager loading behavior by using jpa's FetchType.EAGER when annotating the entity beans if you do, you force all clients of said entity beans to *always* eager fetch everything, even if the client doesn't want/need the full depth/breadth of the object graph to eager load the relations when needed, try fetch joins (see item 5)
  
  <div class="cArrow"> </div><div class="cContentInner">just don't hard-code this eager loading behavior by using jpa's FetchType.EAGER when annotating the entity beans if you do, you force all clients of said entity beans to *always* eager fetch everything, even if the client doesn't want/need the full depth/breadth of the object graph to eager load the relations when needed, try fetch joins (see item 5)</div>
  
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Open Session in View | Hibernate | JBoss Community - 0 views

community.jboss.org/...OpenSessionInView

java javaee6 anti-patterns DesignPatterns lazy-loading EagerFetch JPA

shared by kuni katsuya on 12 Dec 12 - No Cached

Open Session in View
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- kuni katsuya on 12 Dec 12
  
  do not do this! this be an anti-pattern
  
  <div class="cArrow"> </div><div class="cContentInner">do not do this! this be an anti-pattern</div>
  
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Anemic domain model - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Anemic_Domain_Model

patterns AnemicDomainModel

shared by kuni katsuya on 12 Dec 12 - Cached

objects containing only data
- kuni katsuya on 12 Dec 12
  
  ie. dumb data structures with little or no behavior
  
  <div class="cArrow"> </div><div class="cContentInner">ie. dumb data structures with little or no behavior</div>
  
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objects containing only code
- kuni katsuya on 12 Dec 12
  
  ie. classes that are just containers for methods that implement the behavior part of the domain objects (aka the procedures)
  
  <div class="cArrow"> </div><div class="cContentInner">ie. classes that are just containers for methods that implement the behavior part of the domain objects (aka the procedures)</div>
  
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Martin Fowler, who considers the practice an anti-pattern
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...14 more annotations...
Benefit
- kuni katsuya on 12 Dec 12
  
  none
  
  <div class="cArrow"> </div><div class="cContentInner">none</div>
  
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Liabilities
- kuni katsuya on 12 Dec 12
  
  lots
  
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Logic cannot be implemented in a truly object-oriented way
- kuni katsuya on 12 Dec 12
  
  for example, polymorphic behavior
  
  <div class="cArrow"> </div><div class="cContentInner">for example, polymorphic behavior</div>
  
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- kuni katsuya on 12 Dec 12
  
  dammit, can't change highlight color if there's also a sticky note attached!!! arrgggghhhh!!! diigo plugin bug!!
  
  <div class="cArrow"> </div><div class="cContentInner">dammit, can't change highlight color if there's also a sticky note attached!!! arrgggghhhh!!! diigo plugin bug!!</div>
  
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Violation of the encapsulation
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domain model's objects cannot guarantee their correctness
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validation and mutation logic is placed somewhere outside
- kuni katsuya on 12 Dec 12
  
  instead of, say, attaching validation 'behavior' directly on, but still decoupled from domain classes themselves (eg. validation rule annotations on jpa entity beans)
  
  <div class="cArrow"> </div><div class="cContentInner">instead of, say, attaching validation 'behavior' directly on, but still decoupled from domain classes themselves (eg. validation rule annotations on jpa entity beans)</div>
  
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- kuni katsuya on 12 Dec 12
  
  dammit, can't change highlight color if there's also a sticky note attached!!! arrgggghhhh!!! diigo plugin bug!!
  
  <div class="cArrow"> </div><div class="cContentInner">dammit, can't change highlight color if there's also a sticky note attached!!! arrgggghhhh!!! diigo plugin bug!!</div>
  
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Necessitates a service layer when sharing domain logic across differing consumers of an object model.
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Makes a model less expressive and harder to understand.
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Facilitates code duplication among transactional scripts and similar use cases, reduces code reuse.
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Liabilities
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Liabilities
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Liabilities
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Liabilities
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Liabilities
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3. Gas3 Code Generator - Confluence - 0 views

www.graniteds.org/...3.+Gas3+Code+Generator

graniteds Gas3 documentation CodeGeneration

shared by kuni katsuya on 21 Jan 13 - No Cached

3. Gas3 Code Generator
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Known Limitations
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Gas3 does not support inner classes
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...26 more annotations...
except of enum type
- kuni katsuya on 21 Jan 13
  
  not quite sure what this means...
  
  <div class="cArrow"> </div><div class="cContentInner">not quite sure what this means...</div>
  
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must declare your classes in separated source files if you want them to be correctly handled by the generator
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Java enums
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enum.gsp
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JPA entity beans
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entity.gsp
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Java interfaces
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interface.gsp
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Java services
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remote.gsp
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Java events
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bean.gsp
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All other Java classes
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bean.gsp
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beanBase.gsp
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beanBase.gsp
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remoteBase.gsp, or tideRemoteBase.gsp
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entityBase.gsp, or tideEntityBase.gsp
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@Entity
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@MappedSuperclass
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@RemoteDestination
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@TideEvent
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templates are bundled in the granite-generator.jar
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accessible as resources via the class loader
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GraniteDS comes with an ActionScript3 code generator that writes AS3 beans for all externalized JavaBeans, with specific support for lazily loaded EJB 3 entities
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3. Gas3 Code Generator
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tiainen: Easy OAuth using DaliCore and Glassfish: the service provider - 0 views

tiainen.sertik.net/...ng-dalicore-and-glassfish.html

authentication OAuth DaliCore SocialNetwork

shared by kuni katsuya on 27 Mar 13 - No Cached

Easy OAuth using DaliCore and Glassfish: the service provider
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CDI configuration
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use CDI to inject a reference to the UserBean and the OAuthBean
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...2 more annotations...
JPA configuration
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dalicore-oauth persistently stores its request and access tokens, its users and its list of service consumers
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Chapter 3. Configuration - 0 views

docs.jboss.org/...ch03.html

JPA Hibernate NamingStrategy

shared by kuni katsuya on 03 Apr 13 - No Cached

3.6. Implementing a NamingStrategy
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adding mappings:
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calling Configuration.setNamingStrategy()
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...3 more annotations...
setNamingStrategy(ImprovedNamingStrategy.INSTANCE)
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before
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3.6. Implementing a NamingStrategy
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Hibernate Naming Strategies | Hints and Kinks - 0 views

matthew.mceachen.us/...nate-naming-strategies-20.html