How to get Selected Value of SelectOneChoice rather than in Index value in ADF

By default always <af:selectOneChoice> - ValueChangeListener() method gives the index rather than selected value.

Scenario : Get the selected short code of <af:selectOneChoice> component rather than getting index value in valueChangeListener() method binds to <af:selectOneChoice> component

Resolution
- Define ValueChangeListener for the <af:selectOneChoice> component as shown below

Perform below logic