View criteria and LOVs

Hi I am very new to ADF and just getting started on view criteria and LOVs. Is it possible to create a query panel and table such that in the search section the fields have drop down boxes or select many shuttles ? Right now what ever criteria i give is coming as only text boxes. I want for some fields there must be values retrieved from database and shown as drop down list and for another field I need it to be shown as SelectManyShuttle.
Any suggestions or examples should be helpful.
Thanks,
Ravi.

Hi Ravi,
Sure, there is a way to do this. The attributes in your ViewCriteria should have LOV defined on them to show dropdown list for that attribute. When you include that attribute in your VC, it will show as selectOneChoice or whatever you have defined the LOV as.
This might help:
http://docs.oracle.com/cd/E23943_01/web.1111/b31974/web_search_bc.htm
Thanks.
-Nirav

Similar Messages

View Criteria and Transient fields

Hello, I was wondering, is it possible to have View Criteria set on a Transient field? I have created a Transient field named "Field1". I then go to the Query tab in my ViewObject and select the option "Create new view criteria". Here I select the option "Add Item" and from Attribute list I select my field "Field1". However what I notice is that the "View Object Where Clause" does not get updated when the attribute I select is a transient field - when it is a normal field (i.e. from an Entity) it does get updated. This means that I am unable to create view criteria for transient fields. Is there a way how I can manage to do this?

Transient attributes are not based on database columns. This means that WHERE-clause on transient attributes is a non-sense. It makes sense to add conditions on transient attributes only if the view criteria will be executed as a filter in memory (see the "Query Execution Mode" property in the "Create View Criteria" dialog).

Applying view criteria to LOV programmatically in ADF UI

Hi,
I have a LOV defined in model on VO. I want to populate this LOV programmatically based on some view criteria.
How can I do this?
Thanks
- Harish

Hi.
Welcome to OTN.
Check this http://www.oracle.com/technetwork/developer-tools/adf/learnmore/44-restrict-lov-169186.pdf

Named View Criteria and Range paging don't work together

Hi,
I am using a named view criteria for a view whose access mode is set to range paging.
When I use the named view criteria on my page to do a search I am getting the below error. If I don't use range paging as access mode for the view I don't get this error. Looks like when I use the search it doesn't pass the row numbers properly and they are not set in the query.
Is this a known issue or am I missing something?
Thanks
SQL error during statement preparation. Statement: Select *
From (Select /*+ FIRST_ROWS */
         IQ.*, ROWNUM As Z_R_N
          From (Select Persons.PRINCIPAL_NAME,
                       Persons.PERSON_ID,
                       Persons.TITLE,
                       Persons.FIRST_NAME,
                       Persons.LAST_NAME,
                       Persons.PHONE_NUMBER
                  From PERSONS Persons
                 Where ((((UPPER(Persons.FIRST_NAME) Like UPPER('%' || :p_name || '%')) Or (:p_name Is Null))))) IQ
         Where ROWNUM < :1)
Where Z_R_N > :2
Missing IN or OUT parameter at index:: 4 Message was edited by:
Muhammed Soyer

Hi Frank,
I didn't test it in 10g. It was something that I came across and thought that it might be a known issue..
The query is not something that I built manually. My entity is created from a table and my view is using the entity. I added a Named Criteria to the view and used Range Paging as access mode for the view.
The actual query is this
SELECT Persons.PRINCIPAL_NAME,
       Persons.PERSON_ID,
       Persons.TITLE,
       Persons.FIRST_NAME,
       Persons.LAST_NAME,
       Persons.PHONE_NUMBER
FROM PERSONS Persons

What is the best way to view Batman and Love Boat to see their transitions?

David Brewer, you mentioned Batman and Love Boat as providing bad examples of transitions, IYHO. How do you think I could most easily see them in this year? Netflix?
Other viewers - shy off from responding to this. This is for David Brewer.
LM

oh, i cannot not respond to this one.
"batman", the tv series? still, in my mind, one of the best produced shows ever. the "pow" cartoon box transitions were awesome! in many ways, i felt "sin city" drew a lot from the batman series. i have a batman movie in my dvd collection. i'm sure you can find dvds of the series. "google" springs to mind.
"the love boat" on the other hand, well, i have no idea where you'd find it and it's probably good that it's not resurrected.

Dynamic view object and LOV

Here's the problem I've encountered. I need to create an input LOV, where list is taken from dynamically created view object (it is created using createViewObjectFromQueryStmt; query may be different, but it always has 3 columns with fixed names - that's the rule). The problem is quite similar to that described here: {thread:id=935344}
I've tried to create a "stub" LOV with a query like
select 1 ID, 1 RESULTVALUE, 'dynamic' SNAME from dual(all the queries will have 3 columns with names ID, RESULTVALUE and SNAME) and then changing it's query by using something like this
    public void recreateDynamicViewObject(String newSQL) {
        ApplicationModule am = ADFUtils.getApplicationModuleForDataControl(DATACONTROL);
        if (am.findViewObject(DYNAMIC_VO_NAME) != null)
            am.findViewObject(DYNAMIC_VO_NAME).remove();
        ViewObject vo = am.createViewObjectFromQueryStmt(DYNAMIC_VO_NAME,newSQL);
        vo.executeQuery();
    }but it didn't work (with the same results as it was mentioned in the post I've given reference to - the VO changes, but the new rows are not displayed).
My question is almost the same: is it possible to use a dynamically created VO in LOV? The option of creating a VO for each query is unacceptable in my case, because these queries in fact are created by end users, and there can be any number of these queries.
In case it is important - I use JDeveloper 11.1.1.2.0.

I am also looking for a similar solution.
Actually it works partially.
I have a created a permanent View Object with a dummy query and in the run time I am replacing the View Object query in the ProcessRequest in CO.
My problem is when you click on the LOV it works fine with the changed query results, but when I clicked again on the LOV, it shows the the dummy query results which I gave it in the VO.
Here is my AM method which is called in the CO.
BOSS_Parameter1_LOV_VOImpl parameterVO =
getBOSS_Parameter1_LOV_VO1();
parameterVO.clearCache();
parameterVO.executeQuery();
System.out.println(parameterVO.getQuery());
parameterVO.setWhereClause(null);
parameterVO.setWhereClauseParams(null);
parameterVO.setQuery(lovQuery); // this the dynamic query
parameterVO.setWhereClause(null);
System.out.println(parameterVO.getQuery());
Even though its showing the changed query in the getQuery, the LOV is not refreshed.
I am also changing the Query of the View Object in the ProcessFormRequest
if (pageContext.isLovEvent() || pageContext.getParameter(EVENT_PARAM).equals("lovPrepare")) {
call the above mentioned method in the AM.
But, still it doesn't work.
Any tips will be appreciated.
Thanks,

LOV view criteria missing in af:query field when AM pooling is disabled

Hi all,
Again, another strange behaviour with fields in af:query when AM pooling is disabled.
I have a field with a LOV in the af:query area. This LOV has a view criteria that involves a bind variable. In the VO, the view accessor for this LOV applies the view criteria and sets the bind variable. When AM pooling is disabled, double clicking a row or clicking the OK button in the LOV window removes the where clause defined by the view criteria. When activation occurs, the bind variable still exists but the framework doesn't know where to apply it...
Any help will be very appreciated,
Thanks
JDeveloper 11.1.1.3.0 with ADF BC
We've just realised that this behaviour occurs even when pooling is enabled. So this is becoming now a serious problem.
The scenario is as following: We have two LOVs in the search area (af:query). One of them is dependent on the other. Then, this second LOV has a view criteria and a bind variable representing the value selected for the first LOV. The query for the second LOV is filtered properly, but once a value has been selected and the LOV window dismissed, nothing is returned to the field.
We have observed that SecondLovViewImpl.executeQueryForCollection() method executes twice:
1. When LOV is opened: here, the bind variable is correctly setted.
2. When a row in the LOV table is selected: here, the bind variable is reset to null.
The log says (in Spanish):
<OracleSQLBuilderImpl><bindParamValue> [46062] Binding null of type 12 for "bindProgram"
<FacesCtrlLOVBinding$ListOfValuesModelImpl><_getRowFromSelectedRowKey> ADFv: No se ha encontrado ninguna fila para rowKey: [oracle.jbo.Key[P1 SP11 ]].
I would be very grateful if somebody asked me... even for saying "this is nonsense", "this is a known bug", "cascading LOVs are not supported by af:query", or anything else... If a code snippet is required, I'll put it as well.
Thanks in advance
Edited by: Marge on 02-sep-2010 5:41

Hi,
there are two bugs associated with bind variables in successors that I am aware of. One of them is supposed to be fixed in the next patch set, another one is still open. However, both problems were found with AM pooling enabled as well, so I don't know this is the same problem (though it sounds like). If you can, I suggest to create a reproducible testcase on one of the Oracle database schema, like HR or OE, and file a bug. If you don't have a time for or access to support, send the test case in a zip file (rename ".zip" to ".unzip") to the mail Id you find in my OTN profile. However, be aware that when I file the bug then it wont be visible for you, nor can it be escalated on your behalf. Anyway, at least it would get filed
Frank

Query regarding bind variables and LOVs

HI,
I am new to ADF.Last day I learnt about LOVS,View Criteria and bind variables.Now, I was trying to develop a sample application.I created some EOs,VOs and an AM.
I also defined a view criteria which takes a bind variable as parameter and resolves the condition at runtime.Then I created a query panel based on my view criteria.In that Query Panel,when I enter a student's name in an input box(which is bound to the bind variable I guess), the info about the student is displayed in a table.Now, instead of an input box, I want a choice list based on a model driven LOV which will contain all the student names available.Is it possible in ADF 11g?
Thanks in advance

You need to open the VO , you are using , go to the Overview section and in overview section go to the Attributes section.
In attributes section select the attribute by which you are searching or doing your operation, click the add button of List of values: Attribute name
Select the vo object to populate the value.
You will get the data in bind variable you have created in view criteria.
For detailed reference you can follow the bolg
http://saumoinak.blogspot.com/2011/02/showing-data-based-on-list-of-values.html

Is it even possible to dynamically apply view criteria in an ADF Web App?

This is one of those situations where something that should take an hour ends up taking days.
* I have a view.
* The view has Bind Variables associated with it.
* The view has View Criteria associated with it.
* Each of the View Criteria use different Bind Variables.
* I have a search criteria input page that receives from the user what will ultimately be used to set the bind variables.
* I have a search results page that uses the view to display a table.
* I have the code that dynamically sets view criteria and parameters. It is based on the following:
http://download.oracle.com/docs/cd/E15523_01/web.1111/b31974/bcadvvo.htm#BCGFHAGA
* This code works great, until the iterator associated with the table binding to the view is initialized. At that time, the view is reset to its defaults, and all of my code's doings are discarded. How do I know this? Because I have gone so far as to run my code that sets view criteria and binding variables dynamically in a phase event handler for the search results page in the render response phase. There is no other point at which to dynamically modify the view.
This is turning into a situation where it seems I will need 5 different views and 5 different pages in order to show a single set of query results. I cannot get dynamically applied view criteria to work in an ADF web app. Has anyone else done it? Can anyone relate to this? Are there any other suggestions before I conclude that it's not possible for this framework to handle this simple scenario?
Thanks

There must be a setting or something that I am still missing here. If I write code just like this and make sure it is executed, I still only see the results of my view executed without the view criteria applied using the default bind variable values that I supplied in the view object.
It's like the fact that I set the bind variables, the view criteria, and executed the view query programmatically is lost on the iterator -- it's like it never happened. What setting is used to ensure that the iterator uses the outcome of what I executed programmatically? There has to be a critical set or setting that I am missing.
Here is the iterator and search region definitions defined in the page def "executables" section:
<executables>
     <iterator Binds="CustomSearchView1" RangeSize="25"
              DataControl="AppModuleDataControl"
              id="CustomSearchView1Iterator"/>
    <searchRegion Binds="CustomSearchView1Iterator"
                  Customizer="oracle.jbo.uicli.binding.JUSearchBindingCustomizer"
                  id="CustomSearchView1Query"/>
    </executables>Here's the "tree" binding in the page def file:
<bindings>
   <tree IterBinding="CustomSearchView1Iterator" id="CustomSearchView1">
      <nodeDefinition DefName="Model.CustomSearchView" Name="CustomSearchView10">
        <AttrNames>
          <Item Value="CustomId"/>
          <Item Value="CustomProjectNumber"/>
          <Item Value="CustomName"/>
          <Item Value="CustomStatus"/>
          <Item Value="CustomStatusDate"/>
        </AttrNames>
      </nodeDefinition>
    </tree>
</bindings>In an effort to take page flow out of this mess, I had modified this to include the search criteria and search results on a single page. So, I now have a "Search" button. When the "Search" button is clicked, the action method does the following:
    public String searchActionListener ()
          // Get search criteria from select one choice and text input controls.
          AppModule appModule =
                ( AppModule ) Configuration.createRootApplicationModule (
                    "Model.AppModule",
                    "AppModuleLocal");
          appModule.customSearch( searchCriteria1,
                                               searchCriteria2,
                                               searchCriteria3 );
    }In my application module this translates to:
    public void customNoticeSearch ( String searchCriteria1, String searchCriteria2, String searchCriteria3)
       CustomSearchViewImpl searchViewImp =
           ( CustomSearchViewImpl ) this.getCustomSearchView1 ();
       searchViewImp.customExecuteQuery ( searchCriteria1, searchCriteria2, searchCriteria3);
    }Finally, in my custom view object implementation code:
    public void customExecuteQuery ( String searchCriteria1, String searchCriteria2, String searchCriteria3 )
        // Set-up the parameters that are part of the core query.
        this.setp_searchCriteria1( searchCriteria1);
        this.setp_searchCriteria2( searchCriteria2);
        if ( searchCriteria3 != null )
            ViewCriteriaManager vcm = this.getViewCriteriaManager();
            ViewCriteria vc = vcm.getViewCriteria ( "WithLastCriteria" );
            this.setp_searchCriteria3( new Number ( searchCriteria3 ) );
            this.applyViewCriteria( vc );
        System.out.println ("This is fun.");
        this.executeQuery();
    }This code executes, but the results table is empty, and I know that there are results, because I can execute use execute with params to execute the base query and get the correct results back.
Thanks for taking a look at this.

Bug in View Criteria for EXISTS operator

Hello!
I have two VO:
DEP (ID, TITLE, STATUS)
EMP (ID, ID_DEP, NAME)
and viewlink DEP.ID <- EMP.ID_DEP
in DEP VO i create view criteria and add two items:
* DEP.STATUS <> 1000
* the EMPVO with EXISTS operator (and after that add condition EMP.NAME contain :nName (bind var))
start app, set "john" in search field, press button "search" and in debug console i found sql for searching in DEP:
SELECT *
FROM (SELECT DEP.ID,
DEP.TITLE,
FROM DEP DEP
where (DEP.STATUS is null OR DEP.STATUS <> 1000)) QRSLT
WHERE ((((EXISTS (SELECT 1
FROM EMP EMP
WHERE ((UPPER(EMP.NAME) LIKE
UPPER('%' || :nName || '%')))
AND (ID = EMP.ID_DEP))))))
in last row present error, must be:
AND (QRSLT.ID = EMP.ID_DEP))))))
coz if no "QRSLT", sql parser think what need compare EMP.ID and EMP.ID_DEP.
Present in JDeveloper 11.1.1.2.0, 11.1.1.3.0.

We have implemented our own ViewCriteriaAdater (derived from oracle.jbo.server.OracleSQLBuilderImpl) and some custom properties to handle this. Overwrite the getFormattedRHSCompareFragment to your needs.
Btw. I think this posting should go to the JDev forum.

Dynamic Region:VO with a view criteria does not filter data

Hi all,
I am using Jdeveloper 11.1.1.0
I have a page with two section: the first section contains a table, the second contains a region that changes depending on the row choosed in the table of the first table.
Starting from a VO a I have defined some view criterias and in my application module I have created some data control components based on that VO and those view criterias.
So, in my application module, I have a components for every view criteria defined in the VO.
In every fragments visualized in the dynamic region I have a table derived from a view object derived from view criterias defined before.
The problem is that in the fragment I always see all the data and not filtered data.
Instead, if I run my application module, in those view objects, I see the filtered data.
I have noted that (after dragging and dropping the component to the fragment) in the "Bindings" schede, in "Executable" editing myVOFilteredQuery, the field "Criteria" is empty.
Is this the problem? How have I to fill it?
Or the problem is another?
Thank you so much
Andrea

This issue is fixed.
Thanks and Regards
Sameer

Bizarre behavior of a View Criteria for a View Object

Hey,
I remarked quite a bizarre behavior of the View criteria that I created for my view object, using bind variables.
lets say I have the generated query in the View object:
SELECT Paquet.ID,
Paquet.WEIGHT,
Paquet.VALUE,
Paquet.ORIGIN,
Paquet.DESTINATION
FROM PAQUET Paquet
I want to use the executeWithParams with bind variables for this View object.
I create a bind variable:p_o
I create the View Criteria vith the visual editor that generates an additional view clause:
( ( ( Paquet.ORIGIN LIKE ('%' || :p_o || '%') ) OR ( :p_o IS NULL ) ) )
test query works and explain plan as well.
Now, when I execute the view object on a page with the bind variable properly set, I get the error: java.sql.SQLException: Attempt to set a parameter name that does not occur in the SQL: p_o
Then I copy the where clause generated by view criteria visual edito directly to the query and delete the View Criteria, and it ALL WORKS FINE
If has to work like that, then what is the View Criteria useful for? I still think that there is a problem.
Thanks!
Taavi

Hi,
ViewCriterias are not accessed with ExecuteWith Params. For this the bind variable needs to be in the where clause. Named ViewCriterias are listed separately in the DC list
Frank

Using SYSDATE in Pre-Defined View Criteria ADF BC

I’m trying to setup a View Criteria to find records between two dates. So I create a View Criteria and Select my date field from the table and then choose the “Between” operator and then my operand is a Bind Variable. Then in my Bind variables I have SYSDATE and SYSDATE-7. So in my view.xml I have the following:
<Variable
Name="SystemDate"
Kind="viewcriteria"
Type="java.sql.Date">
<TransientExpression><![CDATA[SYSDATE]]></TransientExpression>
</Variable>
<Variable
Name="Bind_SystemDateMinusSeven"
Kind="viewcriteria"
Type="java.sql.Date">
<TransientExpression><![CDATA[SYSDATE-7]]></TransientExpression>
</Variable>
However, when I try to run this View Criteria (using on an af:query component), I get the following error.
Messages for this page are listed below.
Error
Unexpected exception caught: java.lang.reflect.UndeclaredThrowableException, msg=null
Error
Name SYSDATE not found in the given object: ViewRow [oracle.jbo.Key[877 ]
Does anyone know how to do this using ADF BC and View Criterias? I've tried making my bind variables Strings and this doesn't work either. I basically want a predefined query that finds records within a specific week given the system date. Any ideas on how to make this work? Thanks.

You can achieve SYSDATE in ADF BC View Criteria using IsSqlFragment="true".
Below is the VO source code snippet for the same.
<ViewCriteriaItemValue
            Name="ViewObjCriteria_ViewObjSubCriteria1_vcrow40_HireDate_vcval0"
            Value="sysdate-350" IsSqlFragment="true"/>
          <ViewCriteriaItemValue
            Name="ViewObjCriteria_ViewObjSubCriteria1_vcrow40_HireDate_vcval1"
            Value="sysdate" IsSqlFragment="true"/>
</ViewCriteriaItem>

View Criteria

Hi,
I am new to adf exploring by doing one POC ,my requirement is, i need to call the application module impl through backing bean to search based on 2 inputs form DB table and the result set i need to store into session.
for this i wrote view criteria and how to call
I need to get through backing bean
this i wrote in VOImpl class under one method which i am calling from Application module impl class
Proj_name and PA_name are bind variables of View criteria in VOimpl class(Generated View Object class)
ViewCriteria vc =getViewCriteria("ProjectViewObjVOCriteria");
setPA_name(ProjName);
setProj_name(PANumber);
applyViewCriteria(vc);
executeQuery();
error :oracle.jbo.InvalidObjAccessException: JBO-25036: An invalid object operation was invoked on type View Object with name ProjectViewObjVOImpl_19 at first line( setPA_name(ProjName);) setting in above stmts
is it correct what i m doing? if not can anyone guide me in this
Thanks in advance
Praveen
Edited by: user13584306 on Feb 6, 2012 3:20 AM

hi,
just go through the links
http://udayarocks.wordpress.com/2011/06/08/how-to-reuse-a-view-object-vo-for-different-search-criteria-in-multiple-pages-in-adf/
Set the view criteria bind variable from backing bean
http://adfpractice-fedor.blogspot.in/2011/08/how-to-apply-view-criteria.html
regards,
Ranjith

Passing two values in two different views using view criteria in adf bc

I have two tables. Message and MessageProperties. Message table is connected with itself as same as Employee table of HR. Means a Message can have various child message. MessageProperties contains the message properties. A message can have various properties. I want to show the message only if it has a particular value in MessageProperties,then its properties,its child message. If its child message have the same value in MessageProperties,then it shows that. Likewise it should give me a tree structure with its all properties.
When I am hardcode the value then its shows fine.
SELECT Message.MESSAGE_ID,
Message.MSG_CONTENT_ID,
FROM MESSAGE Message, MESSAGE_PROP MessageProp
WHERE (MessageProp.Message_Id=Message.Message_Id) AND ((MessageProp.Key='From' OR MessageProp.Key='To') AND (MessageProp.value='B'))
But when I use the Bind variable in view criteria then I am not able to achieve this.
1. How to do that in adf bc and how to link message and messageprop with this condition?
2. How to pass two parameters in serviceinterface FIndViewCriteria method i.e. messageId and value so that it will show only that message having that value?

Thanks Timo,
It helps me a little bit.
It only shows me the parent message id and its properties. But it is not showing its child message id and its properties.
Let me explain you step by step what I have done.
1> I have created a view MessageView with two entities i.e Message and MessageProp and include the value attribute of MessageProp in it.
2> I have created the default MessagePropView from MessageProp Entity.
3> In MessageView I have modified the query which you have given.
4> I have created the Bind variables.
5> I have created a view criteria and in that view criteria I have included Message_Id=:Bind_MessageId and Value=:Bind_Value.
6> I have created an association connecting Message.Message_Id and Message.Parent_Id(1 to * cardinality) because a message can be a parent of many messages.
7> I have created a viewlink between Message and MessageProp using Message_Id.
8> I have created a view link between Message and Message using the association which I have created in step 6.
9> I have created the Application Module. In that,my Data Model looks like
---MessagePropView2
---MessageView1
---------MessagePropView1
---------MessageView2
10> Then I have created the service interface. In service interface view instances,I include these two view and select the GetByKey operation from basic operations.
11> From View Criteria find operations I have included the view criteria which I have created in message view in step 5.
12> Then I run the AppModuleServiceImpl.java and select the view criteria operation which I have created in step 11.
13> There I find two bind variables i.e. Bind_MessageId and Bind_Value. I give the values there.
But it checks whether that message Id(Bind_MessageId) which I have given have that value(Bind_Value) or not. If it has then it shows only that message along with its properties but it is not showing me its childs and their properties.
I want to show only those child message who have the MessageProp.value as (Bind_Value).
I hope you understand with the scenario.
I'll be very thankfull to you if you help me to do this.
Rohit.

View criteria and LOVs

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