Log Annonation例子

@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.PARAMETER, ElementType.FIELD, ElementType.METHOD})
public @interface LogIgnore {

}

@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.PARAMETER, ElementType.FIELD})
public @interface LogMask {
    LogMaskType value() default LogMaskType.SimpleMask;
}

public enum LogMaskType {
    /**
     * mask all chars
     */
    FullMask('*'), 
    
    /**
     * mask by LogUtils
     */
    SimpleMask(LogUtils.MARK_CHAR);
    
    private final char mask;


    /**
     * @param mask
     */
    private LogMaskType(char mask) {
        this.mask = mask;
    }
    
    public char getMask(){
        return mask;
    }
}