MAF or ADF reusable scope POJO class

layout.amx

<panelFormLayout xmlns:amx="http://xmlns.oracle.com/adf/mf/amx">
  <inputText label="key" value="#{scope.key}"/>
  <inputText label="value" value="#{scope.value}"/>
  <commandButton text="Update" actionListener="#{scope.update}"/>
</panelFormLayout>

<iterator var="key" value="#{scope.properties.keySet}">
  <iterator var="properties" value="#{scope.properties.valMap}">
    <inputText label="#{key}" value="#{properties[key]}" changeListener="#{scope.update}"/> 
  </iterator>
</iterator>

Scope.java

public class Scope {
  private Map<Object, Object> properties = (new HashMap<>(){{ 
    // initialize: put(1, "A");
  }})
  .forEach( (key, value) ->
    // emit: somefunction(key, value)
  );
  
  private RichInputText key;
  private RichInputText value;
  
  public void setKey(RichInputValue key){ this.key = key; }
  public RichInputValue getKey(){ return key; }
  
  public void setValue(RichInputValue value){ this.value = value; }
  public RichInputText getValue(){ return value; }
  
  public void update(ActionEvent action){
    properties.put(key.getValue(), value.getValue());
  }
}