Too long same methods chain
Reports long Reactive Streams transformation chains.
Each operator method call, such as map() or filter(), creates some objects for those operators. Calling a long chain of operators on each subscription, for each stream element, may cause performance overhead. To avoid it, combine a long chain of calls into one operator call wherever possible.
Example:
Flux.just(1, 2, 3)
.map(it -> it + 1)
.map(it -> it + 2)
.map(it -> it + 3)
After the quick-fix is applied:
Flux.just(1, 2, 3)
.map(it -> it + 1 + 2 + 3)
New in 2019.3
Inspection options
Option | Type | Default |
|---|---|---|
The longest allowed same methods chain length | Number | 2 |
Inspection Details | |
|---|---|
Available in: | IntelliJ IDEA 2023.3, Qodana for JVM 2023.3 |
Plugin: | Reactive Streams, 233.SNAPSHOT |
Last modified: 13 July 2023