Declarative components and DCIteratorBinding

Hi,
Can I add manually accessorIterator into the pagedefnition xml? When I add and if it is not binding to an UI component it fails. I want to use a declarative component that takes DCIteratorBinding as an attribute on page, but this makes it necessary to have an unused UI component on my page.
Thanks,
Manoj

Hi Manoj:
It worked for me to manually add bindings. A couple of days ago I manually added an existing Iterator into my page definition, just in order to call its 'createInsert' operation because the next page is supposed to work on the newly created record. It works clean and nice without any problem.
Thanks,
Alex

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When should use Declarative components?

What's the Declarative components and when should use them?

Frank,
According to the sentiment I get on this Forum sometimes, I thought ADF was supposed to automatically infuse into your brain while the JDeveloper installer ran - who needs documentation?
In all seriousness, however, The Fusion Developer's Guide is sitting right here on my desktop, and is open more often than not. I think it suffers from the "free is worthless" syndrome - it's got a lot of good information in it, and if it was a published physical book, I'd bet that people would pay for it.
John

JDeveloper 11.1.2.3, ADF Faces: aberrant behavior declarative components

Strange things have been happening with my research into declarative components.
1. declarative component cannot be used the within the same project it is defined. only in a separate project which consumes it as an adflib
2. periodically, in the componentdef property inspector for my declarative component would miss displaying all values I defined for "Facet Definitions, Method Signature, Methods". Closer inspection of the code reveals that somehow, the afc tags disappeared! so the code for something like a method attribute would look like:
<method-attribute>
<attribute-name>
commit
</attribute-name>
<method-signature>
void method(javax.faces.event.ActionEvent)
</method-signature>
</method-attribute>
...instead of:
<afc:method-attribute>
<afc:attribute-name>
commit
</afc:attribute-name>
<afc:method-signature>
void method(javax.faces.event.ActionEvent)
</afc:method-signature>
</afc:method-attribute>
...3. during design time, the ActionListener attribute of a button (in the declarative component definition) shows up under "warning node" and states "Reference comp.nameofactionlistener" not found.
Code will run but there are many warnings similar to this.
anyone else on 11.1.2.3 have similar issues working with declarative components? i'm trying to find steps to reproduce but havent stumbled upon it yet.

Wes,
1) is documented at http://docs.oracle.com/cd/E35521_01/web.111230/e16181/af_reuse.htm#autoId21
2) and 3) I personally have not stumbled upon, but if you have a reproducible test case you should open an SR or make an entry in the ADFEMF issue tracker (http://java.net/jira/browse/ADFEMG side is currently down :()
Timo

Lightweight alternative to Declarative Components?

Hi,
Is there a simpler, lighter way to extract part of an ADF page into a re-usable tag that can be used instead of the Declarative Components feature?
In my application, I have a table which displays some data from a VO. Some columns are links, and there are also various buttons in and around the table that allow the user to perform a set of common actions on the table contents. I don't want to have to replicate this into all my various pages, I want to extract this into a reusable 'tag'.
This is not a component that will be useful throughout the organisation, it's just a simple component that will be used a few times in this one application. My first idea was to use the ADF declarative component feature, but this requires deployment of a seperate JAR. I've followed various tutorials now on creating a jar then including it into my project, but I haven't succeeded so far (for some reason the jar I create doesn't seem to contain the Declarative Components I have defined). Can I not simply define some components in my own application and use them within that application without the JAR deployment step?
I've also tried going the JSP tag route, but I need to pass objects such as the backing bean and the view object iterator to the tag and when I try and add a tag attribute with deferredValue="true", I get an error from the app server like:
/WEB-INF/tags/attachments.tagx: Line # 9, <jsp:directive.attribute name="backingBean" required="true" deferredValue="true" type="java.lang.Object" xmlns:jsp="http://java.sun.com/JSP/Page"/>
Error: Invalid attribute "deferredValue", for the attribute directive with name " backingBean " when the tld version is not 2.1
 at oracle.jsp.parse.JspRTTag.<init>(JspRTTag.java:247)
 at oracle.jsp.parse.JspRTTag.<init>(JspRTTag.java:237)
 at oracle.jsp.parse.JspParseState.createTagParser(JspParseState.java:943)
 at oracle.jsp.parse.JspParseTag.genXMLSrcTag(JspParseTag.java:919)Even though my implicit.tld does have version="2.1".
My third and final idea was to create a jsff and include it in the page via f:subview and jsp:include, however I can then only pass string type parameters (jsp:param) to the fragment. This isn't adequate, since I need to pass backing bean, view object iterator, etc.
Surely I'm missing an easy way to do this. Any ideas?

I've now succeeded in creating a Declarative Components library and importing those components into my project. It's a rather long winded process but if it works I guess it'll do.
I've created a component called 'attachments', but I'm now getting the following exception when attempting to use the components in my page:
java.io.FileNotFoundException: MDS-00013: no metadata found for metadata object "/components/attachments.jspx"
 at oracle.mds.jsp.MDSJSPProviderHelper.fromStream(MDSJSPProviderHelper.java:120)
 at oracle.adf.library.webapp.ADFJspResourceProvider.fromStream(ADFJspResourceProvider.java:333)
 at oracle.jsp.parse.XMLUtil.getFromStream(XMLUtil.java:280)
 at oracle.jsp.runtimev2.JspPageCompiler.compileBothModes(JspPageCompiler.java:477)
 at oracle.jsp.runtimev2.JspPageCompiler.parseAndGetTreeNode(JspPageCompiler.java:454)
 at oracle.jsp.runtimev2.JspPageInfo.compileAndLoad(JspPageInfo.java:653)
 at oracle.jsp.runtimev2.JspPageTable.compileAndServe(JspPageTable.java:643)
 at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)
 at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:722)
 at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:646)
 ...Another post on the forum says the solution is to create a pageDef file for the jspx, however I can't create a pageDef for a component as far as I can tell.
Is there a solution here? Can MDS and Declarative Components be used together?

How to access/identify components in JSF Declarative Components?

Hi,
I am beginner on ADF. Trying to build first Declarative Components.
Use Case is as follows -
I have put 2 InputTexts in Declarative Component.
Want to set some value in second InputText (txtAddressLine2) in Validator/ValueChangeListner method of first InputText(txtAddressLine2).
<?xml version='1.0' encoding='windows-1252'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=windows-1252"/>
<af:componentDef var="attrs" componentVar="component">
<af:xmlContent>
<component xmlns="http://xmlns.oracle.com/adf/faces/rich/component">
<display-name>Test</display-name>
<attribute>
<attribute-name>
AddressLine2
</attribute-name>
<attribute-class>
java.lang.String
</attribute-class>
</attribute>
<component-extension>
<component-tag-namespace>Address3</component-tag-namespace>
<component-taglib-uri>/Address3</component-taglib-uri>
</component-extension>
</component>
</af:xmlContent>
<af:inputText label="Address Line 1"
binding="#{backing_Address3.txtAddressLine1}"
id="txtAddressLine1"
validator="#{backing_Address3.txtAddressLine1_validator}"
autoSubmit="true" immediate="true" rendered="true"
valueChangeListener="#{backing_Address3.txtAddressLine1_valueChangeListener}"/>
<af:inputText label="Address Line 2" binding="#{backing_Address3.txtAddressLine2}"
id="txtAddressLine2"
validator="#{backing_Address3.txtAddressLine2_validator}"
autoSubmit="true" immediate="true"/>
</af:componentDef>

</jsp:root>
This is sample I am working on.
I am trying following approaches in bean of Component itself.
Approach I: This does not give any error, value is not set in txtAddressLine2
this.getTxtAddressLine2().setValue("Some Value");
Approach II: Not able to access txtAddressLine2 using findComponent() method
UIViewRoot uiViewRoot = facesContext.getViewRoot();
RichInputText inputText;
inputText = null;
if (uiViewRoot.findComponent("txtAddressLine2") != null) {
System.out.println("Found ");
inputText = (RichInputText)uiViewRoot.findComponent("txtAddressLine2");
inputText.setValue("my value");
} else {
System.out.println("Not Found "); //Always not found
Can anybody tell me correct way to access components and set their values inside Declarative Components itself?

Thanks buddies....its resolved!
This is how I have done it -
Components have these 2 Input Texts :
<af:inputText label="Label 1" id="txt1" autoSubmit="true" immediate="true"
binding="#{DC2.txt1}" validator="#{DC2.txt1_validator}"/>
<af:inputText label="Label 2" binding="#{DC2.txt2}" id="txt2"
immediate="true" autoSubmit="true" partialTriggers="txt1"/>
Code in Component Bean setting value is as follows:
RichInputText txt22;
txt22 = getTxt2();
txt22.setSubmittedValue("Some Value");

Declarative Components field binding

Can we bind a View Object to declarative component? I want to have a declarative component and whenever that declarative component would be used, it would be used with the same view object so i feel it extra work to bind all the attributes to view object's attributes whenever declarative component has to use. I want t create the component (declarative) and get bind it with a view object somehow and use it without every time going through to bind to view object or bind individual fields to view object's attributes. Any suggestions??
Edited by: Mamoona on Jun 24, 2011 4:56 PM

Hi,
this is not what declarative components are for. Think of declarative components as standard JSF components, which you would not build tied to a specific model. If you need to wire a declarative component to a View Object then you expose an attribute on the declarative component that the consumer of the component the uses EL on to bind it e.g. to the ADF binding layer
Frank

How to set the disable,visible property in declarative components.

We have used one declarative component. It consists of 5 buttons (add,delete,save,delete,print). In all of our pages, this declarative component is used. We could bind methods and was able to use each pages seperately (by linking the methods in the backing bean)
But for implementing the DISABLE,VISIBLE properties, we have added the attributes for this and refered this to the corresponding disable and visible property of the button. In the page all these properties where reflected. But at the runtime these buttons are not coming.
Can anyone advise how can we set the disable,visible property in declarative components.

Hi vikram ,
i hvnt initialized the properties ,
in my declarative component i have one button say Save button and i want to config 2 properties Disable and Visible
i added two attributes ( java.lang.Boolean ) say disablr_btn ,*visible_btn* and mapped wth the Save button Properties Disabled and Visible using expressions
Now the button is invisible while running the page.
if i remove the mapping from properties Disable and visible , the button is visible
should i init the properties in faces config , i dnt knw hw to init the properties
pls advice

ADF 11g Declarative Components

Declarative components rock! now is there a way to use them with a managed bean, for example click a button to load a table of data. After you wire this up with the managed bean, partial rendering and deploy as library it will work in a new project as a new component. However the partial submit and trigger doesn't seem to stick. It does a full page submit. Is there a solution for this???
thanks.

Hi,
I have a DC, which contains a panelCollection with a toolbar and buttons in it. The panelCollection's child is a facetRef. On a consuming page I insert into the facet a table.
How can I get the toolbar's buttons get updated, once the table's contents have changed?
Particularly, disabled properties of the buttons are exposed as attributes of the DC. On the consuming page the attributes are bound to enabled properties of a commit and a rollback binding actions. Initially the buttons are disabled. When I change a cell's value it would be nice, if the buttons would be enabled in response without refreshing the page or invoking an execute on an undelying VO/iterator.
Regards,
Y.

ADF Mobile: Templates, Reusable regions, Declarative components

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Srini

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Hi Vali
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right.
For one, the bindings are not showing up right. I have 2
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http://help.adobe.com/en_US/AS2LCR/Flash_10.0/help.html?content=00001977.html#3654189
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Declarative components and DCIteratorBinding

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