advanced-java-20130122

Class Design

"Value class" recipe:

• private final fields
• constructor
• getters (and setters if absolutely necessary)
• hashCode/equals (implemented using only immutable state)

Immutability

• safer class inheritance: easier to reason about polymorphism
• safe structural (value) identity
• sometimes provides performance benefits due to sharing

Concurrency

• using built-in concurrency primitives (synchronized, wait/notify) is too hard
• implement the producer-consumer pattern using BlockingQueue
• don't reinvent the wheel: use akka!

Design Patterns

• decorator: add behavior to existing object instances (e.g. java.io)
• composite: build recursive data structures (e.g. abstract syntax trees)
• visitor: apply arbitrary computation recursively over composite structures

Videos

Day 1:

• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/1.1.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/1.2.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/1.3.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/1.4.mov

Day 2:

• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/2.1.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/2.2.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/2.3.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/2.4.mov

Day 3:

• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/3.1.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/3.2.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/3.3.mov
• https://mrkn.s3.amazonaws.com/recordings/advanced-java-20130122/3.4.mov