用于布尔字段的 Lombok 注释 @Getter

Question

I am using Java lombok annotation @Getter to generate getters for my POJO. I have a boolean field by the name isAbc .

The @Getter annotation in this case generates a method by the name isAbc() . Shouldn't it generate a method by the name isIsAbc() ?

Answer 1

Read the 'small print' section on the lombok page https://projectlombok.org/features/GetterSetter.html

For boolean fields that start with is immediately followed by a title-case letter, nothing is prefixed to generate the getter name.

So the behavior you experience is as specified.

Note that the behavior is different for boolean and Boolean :

@Getter
private boolean isGood; // => isGood()

@Getter
private boolean good; // => isGood()

@Getter
private Boolean isGood; // => getIsGood()

Answer 2

Lombok does not prefix with is if the name already starts with is followed by an uppercase letter as in isGood .

You might encounter names like canDelete which too some frustration will have a getter generated with the name isCanDelete . To avoid this you can use the fluent parameter as in:

@Getter(fluent = true)
private boolean canDelete;

or (depending on version):

@Getter
@Accessors(fluent = true)
private boolean canDelete;

In which case it will leave the name as is.

Answer 3

I do some tests against the lombok(1.16.8), and the conclusions are as below.

private Boolean good;

getter => getGood()              Boolean
setter => setGood(Boolean good)  void 


private boolean good;

getter => isGood()               boolean
setter => setGood(boolean good)  void 


private Boolean isGood;

getter => getIsGood()            Boolean
setter => setIsGood()            void 


private boolean isGood;

getter => isGood()               boolean
setter => setGood(boolean good)  void