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Handy code snippets: Oracle ADF


Get Binding Container:

 BindingContainer bind = BindingContext.getCurrent().getCurrentBindingsEntry();

 Call and refresh Iterator from UI (Managed Bean):

 DCBindingContainer dcBindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding iterBinding = bindings.findInteratorBinding("IteratorName");
iterBinding.executeQuery();

Get all rows from iterator:

 Row[] rows = iterBinding.getAllRowsInRange();

Call MethodAction:

  BindingContainer binding = BindingContext.getCurrent().getCurrentBindingsEntry();
OperationBinding opBinding = binding.getOperationBinding("methodName");
opBinding.getParamsMap().put("params", "values");
opBinding.execute();

User details:

 //username
ADFContext.getCurrent().getSecurityContext().getUserName();
//user role
ADFContext.getCurrent().getSecurityContext().getUserRoles();
//check user in security group
SecurityContext secContext = ADFContext.getCurrent().getSecurityContext();
if(secContext != null){
    Boolean access = secContext.isUserInRole("hrGroup");
}

PPR Refresh:

 AdfFacesContext.getCurrentInstance().addPartialTarget(UIComponent);

FacesMessage:

public String showMessage() {
    String msg = "Message for user.";
    FacesMessage fmsg = new FacesMessage(msg);
    FacesContext context = FacesContext.getCurrentInstance();
    fmsg.setSeverity(FacesMessage.SEVERITY_INFO);
    context.addMessage(null, fmsg);
    return null;
}

//To show message next to a specific component replace below line in above code.

context.addMessage(getEmailId().getClientId(context), fmsg); // replace emailId with your component.

Resolve EL:

    public static Object resolveEL (String exp) {
         FacesContext fCntxt = getFacesContext();
         Application app = fCntxt.getApplication();
         ExpressionFactory eFactory = app.getExpressionFactory();
         ELContext elCntxt = fCntxt.getELContext();
         ValueExpression vExp = eFactory.createValueExpression(elCntxt, exp, Object.class);
         return vExp.getValue(elCntxt);
    }

Set Session Variables:

    public static void setSessionValue(String key, Object obj) {
        FacesContext fCntxt = getFacesContext();
        Map sessionMap = fCntxt.getExternalContext().getSessionMap();
        sessionMap.put(key, obj);
    }

Get value from Session:

     public static Object getSessionValue(String key){
            FacesContext fCntxt = getFacesContext();
            Map sessionMap = fCntxt.getExternalContext().getSessionMap();
            return sessionMap.get(key);

        }

Store and Retrieve value from MDS back ended preferences repository:

         Save:

         ADFPreferencesFactory adfp = new ADFPreferencesFactory();
        adfp.userRoot().put("mVal", "someValue");

        Retrieve:

         ADFPreferencesFactory adfp = new ADFPreferencesFactory();
        String val = adfp.userRoot().get("mVal", null);



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