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In this document we cover problematic linked to structural decomposition done using Pattern Matching.

Basic Cases, Capture and Conditional

• Type checking and object equality,
• Defining and using variables

In addition matching can be done with conditionals. Then matching case can be specialized using predicates.

Matching core Java objects

• Matching string and Regular expressions
• List decomposition,
• Map decomposition,

Complex cases for XML and POJOs

• Matching Object.

Ad-Hoc cases: Design on demand

A description explaining how case class is designed is given in the Case class design.

Pattern Matching in action: Akka event handler

Using this mechanism Akka actors receiver can be done easily for Java implementation of course since Scala already provides case class paradigm in the language.