Refresh issue in LOV Switcher

Guys,
I facing a issue from LOV Switcher.
Let me explain the scenario:
I have search page (SearchPage.jsff), i have created page (CreateEditPage.jsff).
CreatePage.jsff has a LOV (Lov is implemented using LOV swither, displays either LOV 1 or LOV2 depnding on the attribute in the viewobject)
1. I navigate from SearchPage.jsff to CreateEditPage.jsff. As per the logic, Lov 1 is displayed. (as expected)
2. Now am back to SearchPage.jsff, and again navigate to CreateEditPage.jsff. As per the logic LOV 2 is displayed. (as expected)
3. Now am back to SearchPage.jsff, and again navigate to CreateEditPage.jsff. As per the logc, LOV 1 should be displayed, but it is displaying Lov 2. (when i refresh the page using F-5, the proper LOV is displayed).
There seems to be some issue with the LOV refresh.
Anybody faced similar issue??
Any suggestions are welcome....

would this help you:
http://jobinesh.blogspot.com/2011/09/programmatically-switching-lov-queries.html

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LOV refresh issue

Hi ,
I have a LOV switcher attribute in my VO. After saving my page, I need the getter of the switcher to be executed so that the page shows the correct LOV returned by the switcher.
How do I go abt it?
Appreciate your help on this.

Refreshing the switcher attribute can be taken care
1) By setting the dependent attributes
2) Groovy expression.
3) Based on the configuration for the switcher transient attribute (Always/Never/ Based on expression)
Hope you are using at least one of the above ways to refresh LOV switcher. You can debug the issue by generating the impl file and putting a break point at the getter of the variable. That might help you in getting more pointers.
Thanks,
Srini.

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Hi
I have a LOV switcher attached to one of the columns in the view object.
It works fine while switching the LOV's in mostly all conditions.
But its failing for one case.
We are using checkboxex to select a row , and do a operation in the row.
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Hi Timo ,
Thanks fr the reply..
Jdev 11.1.1.4
Code for checkbox selection
DCBindingContainer dcbindings =
(DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding iterator =
dcbindings.findIteratorBinding(iteratorName);
Row[] rowSet = iterator.getAllRowsInRange();
Integer selectCount = 0;
for (Row row : rowSet) {
Object selAtt = row.getAttribute(selectAttribName);
if (selAtt != null && (Boolean)selAtt == true) {
System.out.println("Row selected");
selectCount++;
if (selectCount > 1) {
System.out.println("More than one row selected!");
throw new ValidationException("More than one row selected");
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iterator.setCurrentRowWithKey(row.getKey().toStringFormat(true));
} else {System.out.println("Row not selected");}
I actually sorted the issue out
had to write
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Hi I'm using JDEV11.1.1.2
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Hello
As I said , I'm using transient field in the ViewObject and this transient field is set to be the "List of Values switcher" in the LOV.
So I change the value of the transient field with the name of the LOV i want to use and that's it.
Here is the whole scenario made as simple as possible:
ViewObject:
<ViewAttribute
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    <Properties>
      <SchemaBasedProperties> <CONTROLTYPE Value="input_text_lov"/></SchemaBasedProperties>
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</ViewAttribute>jspx:
<af:inputListOfValues id="kodId"
                      binding="#{mainMenuBean.lov}"
                      value="#{bindings.Kod.inputValue}"
                      partialTriggers="cb1"                        <-- I have partial trigger to the button.
                      model="#{bindings.Kod.listOfValuesModel}">
      <f:validator binding="#{bindings.Kod.validator}"/>
</af:inputListOfValues>
<af:commandButton text="Switch" actionListener="#{mainMenuBean.onTestBtn}" id="cb1"/>bean:
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Then I press the button
Second LOV - not OK - [http://www.flickr.com/photos/13808139@N02/5183723749/in/photostream/]
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Is this a bug?
Thanks
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5.1.0 sp11 Connection pool refresh issue, revisited....again...!!!

"Hello,
From reading of these newsgroups I've seen many different manifestations
of what seems to be the same root cause with connection pools and
connections which are refreshed/replaced when found broken. In our
case weblogic server hangs.
Kit: 2xWeblogic 5.1.0 sp11 (not clusterd), Solaris 8,
java 1.3.1_01, 1xoracle 8.1.6, latest JDBC 2.0 drivers from oracle. Each weblogic instance and oracle have their own machines.
We do indeed have a firewall employed to run our subnets, and hence
our weblogic servers and oracle databses are in different DMZ's, but are
allowed to communicate to each other via rules set up on the firewall and
inspection of the logs show no such connections being dropped.
As far as the db is concerned, lookups (no writes) never take more than a few
hundred milliseconds and are then closed and given back to the connection pool
immediately from within the 'finally' block of code, hence hard to see when,if ever, the db is
is closing them due to excessive idle time.
weblogic.jdbc.connectionPool.RecipeDBPool=\
url=jdbc:oracle:thin:@foo:1521:BAA,\
driver=oracle.jdbc.driver.OracleDriver,\
loginDelaySecs=1,\
initialCapacity=30,\
maxCapacity=50,\
capacityIncrement=1,\

Alkesh wrote:
Hi Joe,
The fix you suggested has been implemented and has been running fine
now for the past 3 days. I'm delighted with the result,Great. Glad to help.
but am concerned as to why this problem wasnt highlighted during our
load-testing phases...It's a possibility that your load-testing didn't present the same sort
of load that your actual runtime does.
Thanks for your time on this.Well sure. We want you successful.
Joe
Alkesh
At 01:52 PM 2/22/2002 +0000, you wrote:
Hi Joe,
Thanks for your reply
Please find attached a copy of the jvm thread dump we got from thelast time
that weblogic blocked upon trying to refresh a broken connection.
We have turned off JIT with the environment settingJAVA_COMPILER=NONE.
FYI hotspot is enabled with '-hotspot', these settings can be foundin the
attached 'startWeblogic.sh'.Hi. I found a serious problem by reading the thread dump:
"ExecuteThread-11" daemon prio=5 tid=0x179d40 nid=0x19 waiting for
monitor entry
[0xeee80000..0xeee819e0]
at java.sql.DriverManager.getConnection(DriverManager.java:144)
- waiting to lock <f8e77ad0> (a java.lang.Class)
at com.akqa.sainsburys.jv_recipe.ejb.session.RecipeBean.getConnection(Re
cipeBean.java:759)
It is important to never call DriverManager methods in a multithreaded
application
such as Weblogic, because these JVM methods are alloverly synchronized
at
the class level. One such method, DriverManager.println(), is called
continuously
by all JDBC drivers as well as the SQLException constructor. If one
server thread
makes a long-lasting or hanging call to DriverManager.getConnection(),
it can halt
all JDBC in the whole JVM including work on other open driver
connections.
Please show me the code for RecipeBean.java, and I will send you an
altered version
that should solve this problem. In fact, I can infer from the thread
dump what is needed.
Change the one method getConnection() to this:
// Make once and re-use a driver instance directly, avoiding
DriverManager
Driver d = (Driver)class.forName("weblogic.jdbc.jts.Driver").newInstance();
public Connection getConnection()
return d.connect("jdbc:weblogic:jts:yourPoolNameHere", null );
Also, change your pool definition. I assume you have
testConnsOnReserve set to true.
(You should). Also, you should change your refresh minutes to
something huge, like
9999999. The refresh is interfering with your online performance and
is unnecessary
if you have testConnsOnReserve set. I recommend:
weblogic.jdbc.connectionPool.RecipeDBPool=\
url=jdbc:oracle:thin:@foo:1521:BAA,\
driver=oracle.jdbc.driver.OracleDriver,\
loginDelaySecs=1,\
initialCapacity=50,\ <------ note that this should be the
same as max, so all cons are made at startup
maxCapacity=50,\
testTable=dual,\
testConnsOnReserve=true,\
refreshTestMinutes=9999999,\
etc.
Joe
I've also attached some firewall logs around the time of weblogicblocking
(12.09). I could only get screen dumps for you, this may or maynot be
useful.
For the firewall logs use the following legend :-
195.110.64.205 - DNS
172.16.160.195 - host webserver 1 (i.e. what our licenses are boundto)
172.16.160.196 - host webserver 2
172.16.160.220 - website 1
172.16.160.230 - website 2
Thanks
Alkesh
-----Original Message-----
From: Joe [mailto:[email protected]]
Sent: 20 February 2002 22:09
To: [email protected]
Subject: Re: 5.1.0 sp11 Connection pool refresh issue,
revisited....again...!!!
At 02:47 PM 2/20/2002 +0000, you wrote:
Hi Joe,
Please find attached a copy of our thread dumps for the most recentoccasion
that weblogic server has stopped.
Apologies for any misunderstandings with my previous post, it appears to
have been cropped. Full posting below (yes we do have testConnOnReserve and
testTable properties set).
Thanks for your time.sure, but first let's get you running OK. These dumps seem to be
very cryptic, as if you're running a highly optimized JVM that
loses almost all of the Java class references I'd normally see.
Can you run again with a more basic JVM? I am beginning to suspect
the JIT JVM...
Joe
Alkesh
Joseph Weinstein wrote:
Hello,
From reading of these newsgroups I've seen many
different manifestations of what seems to be the sameroot cause with connection pools and connections
which are refreshed/replaced when found broken. In our
case weblogic server hangs.
Kit: Weblogic 5.1.0 sp11 (not clusterd),
Solaris 8, java 1.3.1_01, oracle 8.1.6,
latest JDBC 2.0 drivers from oracle.
We do indeed have a firewall employed to run our subnets,
and hence our weblogic servers and oracle databses are
in different DMZ's, but are allowed to communicate to each
other via rules set up on the firewall and inspection of
the logs show no such connections being dropped.
As far as the db is concerned, lookups (no writes) never
take more than a few hundred milliseconds and are then
closed and given back to the connection pool immediately
from within the 'finally' block of code, hence hard to
see when,if ever, the db is is closing them due to excessive idle time.
weblogic.jdbc.connectionPool.RecipeDBPool=\
url=jdbc:oracle:thin:@foo:1521:BAA,\
driver=oracle.jdbc.driver.OracleDriver,\
loginDelaySecs=1,\
initialCapacity=30,\
maxCapacity=50,\
capacityIncrement=1,\
allowShrinking=false,\
testTable=dual,\
testConnsOnReserve=true,\
shrinkPeriodMins=1,\
refreshTestMinutes=10,\ // has been 1 and 5 but 10 'more' stable.
Fequently however, connections are found to be broken
(either by periodical refresh - refreshTestMinutes or
testing connection before granting it to the
application - testConnsOnReserve=true), this has been
confirmed by viewing JDBC.log .
When this is so, weblogic attempts to replace these
broken connections with new ones and then proceeds
to grant it to the application. Once in a while however
(and by no means 'x' refreshes later), weblogic will not
come back.
One of 2 errors occur in our deployment which cuase weblogic
to refresh a connection.
<JDBC Pool RecipeDBPool> java.sql.SQLException: No more data to read fromsocket
and
<JDBC Pool RecipeDBPool> java.sql.SQLException: Io exception: Broken pipe
I believe these settings to all be correct, JDBC drivers
in the correct point BEFORE weblogic.aux in classpath, yet
still have the issue of broken connections.
Any ideas ? I've been reading a lot into this probelm
on various postings now, and i'm completely stumped.
Thanks for your time.
Alkesh

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I wish to know if there are any refresh issues in the following scenario.
Consider the same application running in 2 distinct VM, jvm1 and jvm2 in a
simple
configuration without L2 cache.
In jvm1 I have:
PersistenceManager pm = pmf.getPersistenceManager();
pm.currentTransaction().begin();
Object oid = xxx;
Object o = pm.getObjectById(oid)
System.err.println(o.xxxx);
pm.currentTransaction().commit();
pm.close():
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pm.currentTransaction().begin();
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pm.close():
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Guido Anzuoni.
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Guido,
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commit object ID X in JVM2, and then continue to reference it in JVM1
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When this situation is intolerable, you can use pessimistic
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In article <[email protected]>, Guido Anzuoni wrote:
No, no, just for confirmation. I have read some posts on this topic and I
have only shown my tipical usage.
Is this behaviour somehow dependent on optimistic settings ?
What if the DB schema is a preexisting one and there is no column for
optimistic locking check ?
Thanks again,
Guido.
"Stephen Kim" <[email protected]> ha scritto nel messaggio
news:[email protected]...
Yes. Are you not seeing this behavior?
As for oid and class keywords, I'm not sure if the feature has been
resolved one way or another yet.
Guido Anzuoni wrote:
I wish to know if there are any refresh issues in the following
scenario.
Consider the same application running in 2 distinct VM, jvm1 and jvm2 ina
simple
configuration without L2 cache.
In jvm1 I have:
PersistenceManager pm = pmf.getPersistenceManager();
pm.currentTransaction().begin();
Object oid = xxx;
Object o = pm.getObjectById(oid)
System.err.println(o.xxxx);
pm.currentTransaction().commit();
pm.close():
Then in jvm2:
PersistenceManager pm = pmf.getPersistenceManager();
pm.currentTransaction().begin();
Object oid = xxx;
Object o = pm.getObjectById(oid)
o.setSomeAttribute(xxxx);
pm.currentTransaction().commit();
pm.close():
Now if I execute in jvm1 the first code fragment, do I see themodification
applied in
jvm2 ?
Thanks in advance,
Guido Anzuoni.
BTW, are you going to include oid (and hopefully, class) keyword in
projection in kodo3 ?
Stephen Kim
[email protected]
SolarMetric, Inc.
http://www.solarmetric.com
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com

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Hi All,
I am trying to use a dynamic LOV switcher for two LOVs which are cascading LOVs. The second dependant LOV has to conditionally switch between 3 data sources.
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