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kuni katsuya

Data Source Configuration in AS 7 | JBoss AS 7 | JBoss Community - 0 views

community.jboss.org/...DataSourceConfigurationinAS7

jbossas7 datasource configuration jdbc

shared by kuni katsuya on 11 Jul 12 - No Cached
  • Data Source Configuration in AS 7
  • Using @DataSourceDefinition to configure a DataSource
  • This annotation requires that a data source implementation class (generally from a JDBC driver JAR) be present on the class path (either by including it in your application, or deploying it as a top-level JAR and referring to it via MANIFEST.MF's Class-Path attribute) and be named explicitly.
  • ...21 more annotations...
  • this annotation bypasses the management layer and as such it is recommended only for development and testing purposes
  • Defining a Managed DataSource
  • Installing a JDBC driver as a deployment
  • Installing the JDBC Driver
  • deployment or as a core module
  • managed by the application server (and thus take advantage of the management and connection pooling facilities it provides), you must perform two tasks.  First, you must make the JDBC driver available to the application server; then you can configure the data source itself.  Once you have performed these tasks you can use the data source via standard JNDI injection.
  • recommended way to install a JDBC driver into the application server is to simply deploy it as a regular JAR deployment.  The reason for this is that when you run your application server in domain mode, deployments are automatically propagated to all servers to which the deployment applies; thus distribution of the driver JAR is one less thing for administrators to worry about.
  • Note on MySQL driver and JDBC Type 4 compliance: while the MySQL driver (at least up to 5.1.18) is designed to be a Type 4 driver, its jdbcCompliant() method always return false. The reason is that the driver does not pass SQL 92 full compliance tests, says MySQL. Thus, you will need to install the MySQL JDBC driver as a module (see below).
  • Installing a JDBC driver as a module
  • <module xmlns="urn:jboss:module:1.0" name="com.mysql">  <resources>    <resource-root path="mysql-connector-java-5.1.15.jar"/>  </resources>  <dependencies>    <module name="javax.api"/>  </dependencies></module>
  • jboss-7.0.0.<release>/modules/com/mysql/main
  • define your module with a module.xml file, and the actual jar file that contains your database driver
  • content of the module.xml file
  • Under the root directory of the application server, is a directory called modules
  • module name, which in this example is com.mysql
  • where the implementation is, which is the resource-root tag with the path element
  • define any dependencies you might have.  In this case, as the case with all JDBC data sources, we would be dependent on the Java JDBC API's, which in this case in defined in another module called javax.api, which you can find under modules/javax/api/main as you would expect.
  • Defining the DataSource itself
  •    <datasource jndi-name="java:jboss/datasources/MySqlDS" pool-name="MySqlDS">      <connection-url>jdbc:mysql://localhost:3306/EJB3</connection-url>         <driver>com.mysql</driver>
  •     <drivers>      <driver name="com.mysql" module="com.mysql">        <xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>      </driver>    </drivers>
  • jboss-7.0.0.<release>/domain/configuration/domain.xml or jboss-7.0.0.<release>/standalone/configuration/standalone.xml
kuni katsuya

Seam Framework - Why is the constructor invoked twice when a normal scoped bean is crea... - 0 views

sfwk.org/...WhenANormalScopedBeanIsCreated

cdi constructor invocation @PostConstruct

shared by kuni katsuya on 12 Jul 12 - No Cached
  • Why is the constructor invoked twice when a normal scoped bean is created?
  • What you see is the instantiation of two objects: one is the actual bean instance, the other one is the proxy. Both likely invoke the default constructor.
  • That's why it's generally considered a bad idea to do initialization in class construction code. Instead, when using managed beans (objects managed by the EE container) to perform initialisation in a @PostConstruct or @Inject annotated method.
  • kuni katsuya on 12 Jul 12
     
    Why is the constructor invoked twice when a normal scoped bean is created?
kuni katsuya

The Future Of JBoss Seam And Apache DeltaSpike - 0 views

www.infoq.com/...seam-deltaspike

JBoss Seam ApacheDeltaSpike

shared by kuni katsuya on 01 Sep 12 - No Cached
  • The Future Of JBoss Seam And Apache DeltaSpike
  • Apache DeltaSpike (currently in incubation) is a set of extensions on Java CDI (Contexts and Dependency Injection)
  • Apr 11, 2012
  • ...2 more annotations...
  • We have no intention of releasing Seam 4
  • eventual aim is to migrate all of Seam 3 and MyFaces CODI to DeltaSpike
kuni katsuya

Chapter 14. Tide client framework - 0 views

www.graniteds.org/...graniteds.tideframework.html

graniteds Tide framework Flex

shared by kuni katsuya on 12 Sep 12 - No Cached
  • Tide client framework
  • framework features
  • Dependency Injection
  • ...18 more annotations...
  • Event Bus
  • Contextual Components and Conversations
  • Contexts and Components
  • two main kinds of contexts:
  • global context
  • unique context that exists during the whole lifetime of the Flex application
  • compared to to the server-side session
  • conversation contexts
  • temporary contexts that can be created and destroyed at any time during the lifetime of the application
  • can exist simultaneously
  • isolated from each other
  • Components are stateful objects that can be of any ActionScript 3 class with a default constructor
  • have a name
  • A context is mostly a container for component instances
  • three available scopes:
  • session scope
  • conversation scope
  • event scope
  • kuni katsuya on 12 Sep 12
     
    "Tide client framework"
kuni katsuya

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

en.wikibooks.org/...Transactions

jpa transactions

shared by kuni katsuya on 20 Jul 12 - No Cached
  • JTA transactions are
  • implicitly defined through SessionBean usage/methods. In a SessionBean normally each SessionBean method invocation defines a JTA transaction.
  • JTA Transactions
  • ...10 more annotations...
  • In JEE managed mode, such as an EntityManager injected into a SessionBean, the EntityManager reference, represents a new persistence context for each transaction. This means objects read in one transaction become detached after the end of the transaction, and should no longer be used, or need to be merged into the next transaction. In managed mode, you never create or close an EntityManager.
  • Transactions
  • operations that are committed or rolled back as a single unit
  • JPA provides two mechanisms for transactions
  • JTA (Java Transaction API
  • EntityTransaction
  • all changes made to all persistent objects in the persistence context are part of the transaction.
  • Nested Transactions
  • do not support nested transactions
  • JPA and JTA
kuni katsuya

How To Deal With Interfaces In Java EE 6 (or no more Impl) : Adam Bien's Weblog - 0 views

www.adam-bien.com/...how_to_deal_with_interfaces

CodingStandards

shared by kuni katsuya on 04 Aug 12 - No Cached
  • How To Deal With Interfaces In Java EE 6 (or no more Impl)
  • In Java EE 6 interfaces became absolutely optional. Neither in EJB 3.1, nor CDI / JSR-330 you need interfaces. You can inject classes directly. They will be still proxied, so all aspects like persistence, transactions, interceptors, decorators are still available. So you are no more forced to implement interfaces by the container
  • used for: Strategy Pattern: there are already several implementations of an algorithm or concept Layering: there is a clear need to hide e.g. an ugly implementation of a legacy framework API (not very common): you have to expose a API, which gets implemented by SPI (e.g. JDBC)
  • ...4 more annotations...
  • If you introduce interfaces intentionally - and not as a general rule, you will considerably reduce the number of files. Your code becomes easier to understand and so maintain
  • Even for decoupling purposes, interfaces are no more needed
  • "Contract First", "Coding To Interfaces" or "Decoupling"
  • is not a reason to introduce an interface for everything
kuni katsuya

JPA Reference Guide - JBoss AS 7.1 - Project Documentation Editor - 0 views

docs.jboss.org/...JPA+Reference+Guide

jbossas7 jpa reference

shared by kuni katsuya on 12 Jun 12 - No Cached
  • Troubleshooting The org.jboss.as.jpa logging can be enabled to get the following information: INFO - when persistence.xml has been parsed, starting of persistence unit service (per deployed persistence.xml), stopping of persistence unit service DEBUG - informs about entity managers being injected, creating/reusing transaction scoped entity manager for active transaction TRACE - shows how long each entity manager operation took in milliseconds, application searches for a persistence unit, parsing of persistence.xml
  • Container-managed Extended Persistence context
  • extended persistence context can
  • ...20 more annotations...
  • span multiple transactions
  • and allows data modifications to be queued up (like a shopping cart),
  • without an active JTA transaction
  • EXTENDED
  • entity lifecycle
  • is managed by the underlying persistence provider.
  • New (transient):
  • an entity is new if it has just been instantiated using the new operator, and it is not associated with a persistence context. It has no persistent representation in the database and no identifier value has been assigned.
  • Managed (persistent):
  • a managed entity instance is an instance with a persistent identity that is currently associated with a persistence context.
  • Detached:
  • the entity instance is an instance with a persistent identity that is no longer associated with a persistence context, usually because the persistence context was closed or the instance was evicted from the context.
  • Removed:
  • a removed entity instance is an instance with a persistent identity, associated with a persistence context, but scheduled for removal from the database.
  • Replacing the current Hibernate 4.0.x jars with a newer version
  • update the current as7/modules/org/hibernate/main folder
  • Delete *.index files in as7/modules/org/hibernate/main and as7/modules/org/hibernate/envers/main folders
  • Remove the older jars and copy new Hibernate jars into as7/modules/org/hibernate/main + as7/modules/org/hibernate/envers/main.
  • Update the as7/modules/org/hibernate/main/module.xml
  • as7/modules/org/hibernate/envers/main/module.xml to name the jars that you copied in.
kuni katsuya

JPA Reference Guide - JBoss AS 7.0 - Project Documentation Editor - 0 views

docs.jboss.org/...JPA+Reference+Guide

jbossas7 jpa reference documentation persistence-unit jpaprovider

shared by kuni katsuya on 14 Jun 12 - No Cached
  • Persistence unit properties
  • Should be hibernate3-bundled if Hibernate 3 jars are in the application archive (adapterModule and adapterClass will automatically be set for hibernate3-bundled).
  • org.jboss.as.jpa.hibernate:3 (Hibernate 3 integration classes)
  • ...14 more annotations...
  • jboss.as.jpa.adapterModule
  • jboss.as.jpa.adapterClass
  • org.jboss.as.jpa.hibernate3.HibernatePersistenceProviderAdaptor
  • Working with other persistence providers
  • A project to build integration for persistence providers like EclipseLink, is here.
  • Troubleshooting
  • “org.jboss.as.jpa” logging can be enabled to get the following information: INFO - when persistence.xml has been parsed, starting of persistence unit service (per deployed persistence.xml), stopping of persistence unit service DEBUG - informs about entity managers being injected, creating/reusing transaction scoped entity manager for active transaction TRACE - shows how long each entity manager operation took in milliseconds, application searches for a persistence unit, parsing of persistence.xml
  • To enable TRACE, open the as/standalone/configuration/standalone.xml (or as/domain/configuration/domain.xml) file. Search for <subsystem xmlns="urn:jboss:domain:logging:1.0"> and add the org.jboss.as.jpa category
  • Packaging the Hibernate 3.5 or greater 3.x JPA persistence provider with your application
  • jboss.as.jpa.providerModule needs to be set to hibernate3-bundled.
  • <property name="jboss.as.jpa.providerModule" value="hibernate3-bundled" />
  • Sharing the Hibernate 3.5 or greater JPA persistence provider between multiple applications
  • Applications can share the same Hibernate3 (for Hibernate 3.5 or greater) persistence provider by manually creating an org.hibernate:3 module (in the AS/modules folder). Steps to create the Hibernate3 module:
  • <property name="jboss.as.jpa.providerModule" value="org.hibernate:3" />
kuni katsuya

Comparison - 0 views

openejb.apache.org/comparison.html

apache tomcat tomee tomee+ openejb comparison

shared by kuni katsuya on 16 May 12 - No Cached
  • TomEE is a superset of OpenEJB
  • Tomcat
  • TomEE
  • ...5 more annotations...
  • TomEE+
  • OpenEJB
  • Java API for XML Web Services (JAX-WS) Java API for RESTful Web Services (JAX-RS) Java EE Connector Architecture Java Messaging Service (JMS)
  • Java Servlets Java ServerPages (JSP) Java ServerFaces (JSF) Java Transaction API (JTA)
  • Java Persistence API (JPA) Java Contexts and Dependency Injection (CDI) Java Authentication and Authorization Service (JAAS) Java Authorization Contract for Containers (JACC) JavaMail API Bean Validation Enterprise JavaBeans
kuni katsuya

Plummer's Mind: GraniteDS Tutorial: Intro to The Tide Client Framework - 0 views

plummersmind.blogspot.ca/...rial-intro-to-tide-client.html

graniteds tide client framework tutorial

shared by kuni katsuya on 15 May 12 - No Cached
  • GraniteDS Tutorial: Intro to The Tide Client Framework
  • only one per Application
  • Tide Context
  • ...2 more annotations...
  • Tide will automatically inject shared data and correctly route events without requiring the application developer to write their own mechanism for sharing information or explicitly registering event listeners
  • Tide events are a simplification on the already existing Flex event framework
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