diff options
Diffstat (limited to 'smcc/src/main/java/at/gv/egiz/smcc/PINProvider.java')
| -rw-r--r-- | smcc/src/main/java/at/gv/egiz/smcc/PINProvider.java | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/smcc/src/main/java/at/gv/egiz/smcc/PINProvider.java b/smcc/src/main/java/at/gv/egiz/smcc/PINProvider.java index e0104618..8fa80dcb 100644 --- a/smcc/src/main/java/at/gv/egiz/smcc/PINProvider.java +++ b/smcc/src/main/java/at/gv/egiz/smcc/PINProvider.java @@ -28,8 +28,30 @@ // package at.gv.egiz.smcc; +/** + * The number of retries is not fixed and there is no way (?) to obtain this value. + * A PINProvider should therefore maintain an internal retry counter or flag + * to decide whether or not to warn the user (num retries passed in providePIN). + * + * Therefore PINProvider objects should not be reused. + * + * (ACOS: reload counter: between 0 and 15, where 15 meens deactivated) + * + * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at> + */ public interface PINProvider { - - public String providePIN(PINSpec spec, int retries) throws InterruptedException; + + /** + * + * @param spec + * @param retries num of remaining retries or -1 if unknown + * (a positive value does <em>not</em> necessarily signify that there was + * already an unsuccessful PIN verification) + * @return pin != null + * @throws at.gv.egiz.smcc.CancelledException + * @throws java.lang.InterruptedException + */ + public char[] providePIN(PINSpec spec, int retries) + throws CancelledException, InterruptedException; } |