See full article here : https://cedricleruth.com/how-to-retreive-the-value-of-an-iterator-binding-variable-programmatically-in-adf/

retreiveValueOfAnAdfBindingProgrammatically.java

//Here is how to simply retreive the value of and ADF Binding from the view El Expression :

//Below is a view example with values taken from an ADF View Object
<af:inputText id="it1" autoSubmit="true" value="#{bindings.YOUR_VO.YOUR_VO_ATTRIBUTE.inputValue}" />
<af:table value="#{bindings.YOUR_VO.collectionModel}" var="row">
   <af:column sortProperty="#{bindings.YOUR_VO.hints.YOUR_VO_ATTRIBUTE.name}"
               id="c1">
        <af:outputText value="#{row.YOUR_VO_ATTRIBUTE}" id="ot1"/>
    </af:column>
</af:table>

//Using below function you can easily get any of those value in your ADF Bean as follow : 
//Note: replace String by the correct type
String inputTextValue= (String)resolveExpression("#{bindings.YOUR_VO.YOUR_VO_ATTRIBUTE.inputValue}");
String currentRowValue= (String)resolveExpression("#{row.YOUR_VO_ATTRIBUTE}");

/**
 * Method for taking a reference to a JSF binding expression and returning
 * the matching object (or creating it).
 * @param expression EL expression
 * @return Managed object
 * @author : Duncan Mills, Steve Muench and Ric Smith's JSFUtils class https://github.com/CedricL46/Oracle-ADF-and-JSF-Utils-libraries
 */
public static Object resolveExpression(String expression) {
    FacesContext facesContext = getFacesContext();
    Application app = facesContext.getApplication();
    ExpressionFactory elFactory = app.getExpressionFactory();
    ELContext elContext = facesContext.getELContext();
    ValueExpression valueExp = elFactory.createValueExpression(elContext, expression, Object.class);
    return valueExp.getValue(elContext);
}