Problem with binding components of fragments of page in bean managed when rendered as region

I detected a problem when I bind a component in a managed bean for a page fragment which is a view of a TaskFlow exposed to JSF as a region.

This problem happened when I exhibited same TaskFlow as region of two or more instances in the same Joint Strike Fighter. The component that is only returned in the latter region.

JDeveloper 12 c (12.1.2.0) ADF12c.

This is the code:

The page fragment:

<?xml version='1.0' encoding='UTF-8'?>
<ui:composition xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
  <af:panelGroupLayout id="pgl1">
    <af:inputText label="Label 1" id="it1" binding="#{bindingComponentBean.inputText}"/>
    <af:button text="button 1" id="b1"/>
  </af:panelGroupLayout>
</ui:composition>

Bean managed (within the scope of the request)

package com.edisa.test.errors.view.backing;


import oracle.adf.view.rich.component.rich.input.RichInputText;


public class BindingComponentBean {
    private RichInputText inputText;


    public BindingComponentBean() {
    }


    public void setInputText(RichInputText inputText) {
        this.inputText = inputText;
    }


    public RichInputText getInputText() {
        return inputText;
    }
}

TaskFlow

<?xml version="1.0" encoding="UTF-8" ?>
<adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
  <task-flow-definition id="TestTaskFlow">
    <default-activity>test_fragment</default-activity>
    <managed-bean id="__1">
      <managed-bean-name>bindingComponentBean</managed-bean-name>
      <managed-bean-class>com.edisa.test.errors.view.backing.BindingComponentBean</managed-bean-class>
      <managed-bean-scope>request</managed-bean-scope>
    </managed-bean>
    <view id="test_fragment">
      <page>/fragments/test_fragment.jsff</page>
    </view>
    <use-page-fragments/>
  </task-flow-definition>
</adfc-config>

JSF page

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html>
<f:view xmlns:f="http://java.sun.com/jsf/core" xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
    <af:document title="index.jsf" id="d1">
        <af:form id="f1">
            <af:pageTemplate viewId="/oracle/templates/threeColumnTemplate.jspx" id="pt1">
                <f:facet name="center">
                    <af:panelGridLayout id="pgl1" inlineStyle="border: 1px solid #eee;">
                        <af:gridRow marginTop="5px" height="auto" marginBottom="5px" id="gr1">
                            <af:gridCell marginStart="5px" width="50%" id="gc1" inlineStyle="border: 1px solid #eee;"
                                         halign="stretch">
                                <af:panelBox text="Region 1" id="pb1">
                                    <f:facet name="toolbar"/>
                                    <af:region value="#{bindings.TestTaskFlow2.regionModel}" id="r2"/>
                                </af:panelBox>
                            </af:gridCell>
                            <af:gridCell marginStart="5px" width="50%" marginEnd="5px" id="gc2"
                                         inlineStyle="border: 1px solid #eee;" halign="stretch">
                                <af:panelBox text="Region 2" id="pb2">
                                    <f:facet name="toolbar"/>
                                    <af:region value="#{bindings.TestTaskFlow1.regionModel}" id="r1"/>
                                </af:panelBox>
                            </af:gridCell>
                        </af:gridRow>
                    </af:panelGridLayout>
                </f:facet>
                <f:facet name="header"/>
                <f:facet name="end"/>
                <f:facet name="start"/>
                <f:facet name="branding"/>
                <f:facet name="copyright"/>
                <f:facet name="status"/>
            </af:pageTemplate>
        </af:form>
    </af:document>
</f:view>

Component to bind to the support extended to bean bean would be.

In fact, it is solely to support the scope of the bean - to distinguish two or more instances of the page fragment component.

It has the same duration of life as the requestScope, but for different instances of the components parts / declarative, you have separate instances of scope backingBean controlled beans.

http://adfpractice-Fedor.blogspot.com/2012/03/managed-bean-scopes-for-page-fragments.html

Tags: Java

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