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Transcript of Google Guava
What is Guava?
Image by Tom Mooring
What is Guava
What is Google Guava
The Google Guava is a set of common libraries for Java
Developed by core library team of Google
Battle-tested on production
guava-tests package includes over 286,000 individual test cases
Guavas (singular guava, /ˈɡwɑː.və/) are plants in the Myrtle family (Myrtaceae) genus Psidium, which contains about 100 species of tropical shrubs and small trees.
BSc in YTU
MSc in SU
Pros & Cons
Well designed and consistent
Is in active development
Functional support before Java 8
Less boiler-plate code
Functional programming support can be abused
Does not support JDK 1.4 and below
Functions Goin' Wild
Excessive use of Guava's functional programming idioms can lead to verbose, confusing, unreadable, and inefficient code. These are by far the most easily (and most commonly) abused parts of Guava, and when you go to preposterous lengths to make your code "a one-liner," the Guava team weeps.
JDK 8 Lambda Exp
is waiting for your questions
~Map<? extends Object, Integer>
Doesn't need to support mutation, and can make time and space savings with that assumption
Can be used as a constant