InterfaceTypeParameterName
Since Checkstyle 5.8
Description
Checks that interface type parameter names conform to a specified pattern.
Properties
name | description | type | default value | since |
---|---|---|---|---|
format | Sets the pattern to match valid identifiers. | Pattern | "^[A-Z]$" |
5.8 |
Examples
To configure the check:
<module name="Checker">
<module name="TreeWalker">
<module name="InterfaceTypeParameterName"/>
</module>
</module>
Code Example:
class Example1 {
interface FirstInterface<T> {}
interface SecondInterface<t> {} // violation
}
An example of how to configure the check for names that are only a single letter is:
<module name="Checker">
<module name="TreeWalker">
<module name="InterfaceTypeParameterName">
<property name="format" value="^[a-zA-Z]$"/>
</module>
</module>
</module>
Code Example:
class Example2 {
interface FirstInterface<T> {}
interface SecondInterface<t> {}
interface ThirdInterface<type> {} // violation
}
Example of Usage
Violation Messages
All messages can be customized if the default message doesn't suit you. Please see the documentation to learn how to.
Package
com.puppycrawl.tools.checkstyle.checks.naming