Day 3 HTML 5 rocks!!

Death of the slow: 7 Reasons to love JBoss AS7
(Dan Allen and Andrew Rubinger)

#1 - Speed
#2 - Modular Design
#3 - Exceptionally lightweight
- define servlet-configuration to trim for ex. servlet container
#4 - Domain Management
- keyword: Domain Controller, Server group
#5 - Elegant administration
#6 - First class components
ex.: Ruby on JBoss (TorqueBox for Java and Ruby!)
#7 - Developer productivity
-JBoss Forge
-ShrinkWrap
-Arquillian

Bleeding Edge HTML5
(Paul Kinlan)
http://updates.html5rocks.com/
chromesatus.com
bleedinghtml5.appspot.com

- < details > / < summary > - to expand and collapse content
- < output > - no need for onclick or onchange
- < mark > - for highlights
- speech input - x-webkit-speech

>> Intelligent Web Apps
- smarter animations (browser gets more control, on how often call back functions are called) -> window.requestAnimation
- Page visibility API/Rendering -> detect if user is on the page tab or not
- know when you are connected -> so you can do diferent things accordingly

Some other keywords:
- Web Intents (see android intents)
- Rich Media: full screen API
- Web RTC

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Basically from what I saw, I have to agree with the speaker, it is just Craaaazy cool!! I want it too!
Great speaker! :))))


Performance anti-patterns in Hibernate
(Patrycja Wegrzynowicz)

Anti-patterns
#1 - premature optimization
#2 - lost proxy on owning sid -> prefer field access mappings
#3 - temporary changes -> flush to database
#4 - inadequate collection type on the owning side
one-to-many relationships
- bag semantic :(
- set semantic :)
- list semantic :(
#5 - OneToMany as owning side
-> use ManyToOne as the owning side and OneToMany as the inverse side
#6 - inadequate collection onb the inverse side
#7 - OneByOne processing

Conclusion: read the documentation!

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Interesting and scary were some examples she showed about how many updates hibernate does in the background if one uses inadequate types. Eeeeeerie!


Productivity enhancements in Spring 3.1
(Costin Leau)

>> Spring 3.1
> Environment abstraction: Bean Profiles
- group objects by target environment (ex. test,dev,prod,..)
- activate profiles - when beans are not active, they are not validated :)

> Java based App Config (for those who curse XML)
- can use it instead of XML or alongside it
XML JavaConfig
Namespaces @enable*
FactoryBean Builder
GenericXMLContextLoader AnnotationContextLoader

> c: namespace (analogue to p: namespace)

> Cache Abstraction

> @MVC improvements
- was introduced in 2.5 - improvements in 3 for REST

> Consumers and producers

> Refined JPA support

- RC1 out in October
- RC2 next week
- GA soon after