Java Reference
In-Depth Information
tions in another way than direct inheritance, aggregation, or AOP. Overused, it can make
your code heavy, drive pre-Java 8 developers crazy, and lead to chaos.
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If you ever have to do this kind of thing where the data is stored in a relational database using the
Java Persistence API (see
Easy Database Access with JPA and/or Hibernate
)
, you should check out
Apache DeltaSpike Data
,
which allows you to define an interface with method names like
findCamer-
aByInterchangeableTrueAndPriceLessThan(double price)
and have DeltaSpike Data
implement
these methods for you
. There are also template projects for CDI+DeltaSpike on GitHub:
Java SE
and
Java Web
.
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If you're just not that into cameras, the description “Interchangeable Lens Camera (ILC)” includes
two categories of what you might find in a camera store in 2014: traditional DSLR (digital single lens
reflex) cameras, and the newer category of “Compact System Cameras” like the Nikon 1, Sony ILCE
(formerly known as NEX), and the Canon EOS-M, all of which are smaller and lighter than the older
DSLRs.
