+ +

@Getter and @Setter

Laziness is a virtue!

Overview

+ NEW IN Lombok 0.10: You can let lombok generate a getter which will calculate a value once, the first time this getter is called, and cache it from then on. This can be useful + if calculating the value takes a lot of CPU, or the value takes a lot of memory. To use this feature, create a private final variable, + initialize it with the expression that's expensive to run, and annotate your field with @Getter(lazy=true). The field will be hidden from the + rest of your code, and the expression will be evaluated no more than once, when the getter is first called. There are no magic marker values (i.e. even + if the result of your expensive calculation is null, the result is cached) and your expensive calculation need not be thread-safe, as lombok + takes care of locking. +

With Lombok

@HTML_PRE@

Vanilla Java

@HTML_POST@

Small print

+ Lombok actually creates a few fields all prefixed with $lombok$ to cache the value. You should not rely on the exact type, name, and structure + of these fields as future implementations may change them. To access the lazily initialized value, always use the generated getter. +

+ Other Lombok annotations such as @ToString always call the getter even if you use doNotUseGetters=true. +

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