kendal.annotations.Clone Maven / Gradle / Ivy
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package kendal.annotations;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
/**
* Applied to a method creates new method with name from {@link #methodName()} attribute and list of parameters same as original method.
* Generated method calls the original method, passes the result to an instance of {@link #transformer()}
* and returns transformed value. If {@link #methodName()} is not specified, clone with default name is created.
* Default name is: originalName + "Clone"
* Return type of generated method is extracted from declaration of {@link #transformer()} class.
*/
@Target(ElementType.METHOD)
public @interface Clone {
Class transformer();
/**
* Java does not allow putting {@link java.lang.annotation.Annotation}, which is the base type for all annotations, as annotation member.
* Let's just use this field as if it was defined.
* We remove onMethod parameter from AST after processing @Clone usage.
* */
// Annotation[] onMethod() default {};
/**
* Name of the generated method.
* Defaults to original method name + "Clone" suffix
* */
String methodName() default "";
interface Transformer {
R transform(T input);
}
}