Java
'Set' can be replaced with 'EnumSet'
Warning
New
Last modified: 03 December 2024 Reports instantiations of java.util.Set
objects whose content types are enumerated classes. Such Set
objects can be replaced with java.util.EnumSet
objects.
EnumSet
implementations can be much more efficient compared to other sets, as the underlying data structure is a bit vector. Use the quick-fix to replace the initializer with a call to EnumSet.noneOf()
. This quick-fix is not available when the type of the variable is a sub-class of Set
.
Example:
enum MyEnum { FOO, BAR; }
Set<MyEnum> enums = new HashSet<MyEnum>();
After the quick-fix is applied:
enum MyEnum { FOO, BAR; }
Set<MyEnum> enums = EnumSet.noneOf(MyEnum.class);
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
SetReplaceableByEnumSet
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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