Problem with clearing cache by identity class

Our application has requirement to have admin methods to clear/refresh objects of certain type from the toplink cache. We tried to use initializeIdentityMap(class) method, but it seems the objects stick around in the cache. But the initializeAllIdentityMaps() method worked. Unfortunately we need the granularity.
We are currently using toplink 9.0.4 and configured the cache to use FullIdentityMap as the data in cache are quiet static.
Any help is greatly appreciated.
Thanks,
zq

Doug,
Thank you very much for your reply. I understand that the initialize features are risky and we tried to use reader-writer lock for each entity type. We are using refresh policy to refresh cache for most of data. But for some types of data which are cached based on the user requests, we don't have queries to refresh all objects of that type in cache. I thought about using a query which will select from cache all the records of given type. But that would be fairly time-consuming if we need to loop through all the records and issue refreshing. What we really want is clear all the records in cache and build the cache again based on user requests.
What's your recommendation?
The initializeIdentityMap(class) is prefect for us if it works. Our application is very much like a data provider which get the data from either database or cache and send it over the wire using RMI. The entity we try to clear is very much on its own: no other records/application reference it. But the initialize method seems fail to remove them as we still see them through getAllFromIdentityMap() and subsequent request don't hit the database. What could be wrong?
When will 10.1.3 ready for production? I looked briefly on the cache related enhancement. A lot of nice new features. But I don't see it help much on the problem we face now: ad hoc clear all the records of an identity type from cache(without references to them). I could be wrong as I only browse through the API doc. Can you shield some light on this?
Really appreciate your insight.
zq

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Also, Apple's mobile YouTube app "Sharing" function is limited and doesn't tap into the real power of YouTube sharing (Facebook, Twitter etc.). It only allows you to share by sending the link in an email. This makes for a lot of extra work to share a video to friends. Perhaps they'll expand the sharing function in a future update to the app.
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Problem with the cache hit ratio

Hello,
I ma having a problem with the cache hit ratio I am geting. I am sure, 100% sure, that something has got to be wrong with the cache hit ratio I am fetching!
1) I will post the code that I am using to retrieve the cache hit ratio. I've seen about a thousand different equations, all equivalent in the end.
In oracle cache hit ratio seems to be:
cache hits / cache lookups,
where cache hits <=> logica IO - physical reads
cache lookups <=> logical IO
Now some people use the session logical Reads stat, from teh view v$sysstat; others use db block gets + db consistent gets; whatever. At the end of the day its all the same, and this is what i Use:
SELECT (P1.value + P2.value - P3.value) AS CACHE_HITS, (P1.value + P2.value) AS CACHE_LOOKUPS, P4.value AS MAX_BUFFS_SIZEB
FROM v$sysstat P1, v$sysstat P2, v$sysstat P3, V$PARAMETER P4
WHERE
P1.name = 'db block gets' AND
P2.name = 'consistent gets' AND
P3.name = 'physical reads' AND
P4.name = 'sga_max_size'
2) The problem:
The cache hit ratio I am retrieving cannot be correct. In this case i was benchamarking a HUGELY inneficient query, consisting of the Union of 5 Projections over the same source table, and Oracle is configured with a relatively small SGA of 300 MB. They query plan is awful, the database will read the source database table 5 times.
And I can see in the physical data statistics of the source tablespace, that total Bytes read is aproximatly 5 times the size of the text file that I used to bulk load data into the databse.
Some of the relevant stats, wait events:
db file scattered read     1129,93 seconds
Elapsed time: 1311,9 seconds
CPU time: 179,84
SGA max Size: 314572800 Bytes
And total bytes read: 77771964416 B (aproximatly 72 Gga bytes)
the source txt loaded to the database was aprox 16 G
Number of reads was like 4.5 times the source datafile.
I would say this, given the difference between CPU time and Elapsed Time, it is clear that the query spent almost all of its time doin DB file scattered reads. How is it possible that i get the following cache hit ratio:
Cache hit Ratio: 0,92
Cache hits: 109680186
Cache lookups: 119173819
I mean only 8% of that Logical I/O corresponded to physical I/O? It is just not possible.
3) Procedure of taking stats:
Now to retrieve these stats I snapshot the system 2 times. One before the query, one after the query.
But: this is not done in a single session. In total 3 sessions are created. One session two retrieve the stats before the query, one session to run the query, a last session to snapshot after the query.
Could the problem, assuming there is one, be related to this:
"The V$SESSTAT view contains statistics on a per-session basis and is only valid for the session currently connected. When a session disconnects all statistics for the session are updated in V$SYSSTAT. The values for the statistics are cleared until the next session uses them."
What does this paragraph mean. Does it mean that the v$sysstat only shows you the stats of the last session that closed? Or does it mean thtat v$sysstat is increamented with the statistics of each v$sessionstat once a session terminates? If so, then my procedure for gathering those stats should be correct.
Can anyone help me sort out the origin of such a high cache hit ratio, with so much I/O being done?

sono99 wrote:
Hi,s
first of, let me start by saying that there were many things in your post that you mentioned that I could no understand. 1. Because i am not an Oracle Expert, i use whatever RDBMS whenever i need to. 2. Because another problem has come up and, right now, i cannot inform myself to be able to comprehend it all.Well, could it be that you need to understand the database you are working on in order to comprehend it? That is why we strongly advise you to read the concepts manual first, you need to understand the architecture that Oracle uses, as well as the basic concepts of how oracle does locking and maintains read consistency. It does these different than other database engines, and some things become nonsense if looked at from the viewpoint of a single user.
>
quote:
It would be useful to see the execution plan jhust in case you have simplified the problem so much that a critical detail is missing.
First, the query code:
2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:>SQL> CREATE TABLE FAVFRIEND
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 2 NOLOGGING TABLESPACE TARGET
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 3 AS
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 4 SELECT ID as USRID, FAVF1 as FAVF FROM PROFILE
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 5 UNION ALL
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 6 SELECT ID as USRID, FAVF2 AS FAVF FROM PROFILE
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 7 UNION ALL
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 8 SELECT ID as USRID, FAVF3 AS FAVF FROM PROFILE
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 9 UNION ALL
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 10 SELECT ID as USRID, FAVF4 AS FAVF FROM PROFILE
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 11 UNION ALL
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 12 SELECT ID as USRID, FAVF5 AS FAVF FROM PROFILE
[2009-10-20 15:11:59,141 INFO]: OUTPUT_GOBLER:> 13 ;
Now, Althought it is clear from the query that the statement is executed with the NOLOGGiNG, i have disabled the logging entirely for the tablespace.There are certain rules about nologging that may not be obvious. Again, this derives from the basic Oracle architecture, and if you use the wrong definitions of things like logging, you will be led down the primrose path to confusion.
>
Futhermore, yes, the RDBMS is a test RDBMS... I have droped the database a few times... And I am constantly deleting an re-inserting data into the source database table named PROFILE.>
I also make sure do check all the datafile statistics, and for this query the amount of RedoLog, Undo "Log", Templife used is negligible, practically zero.Create table is DDL, which has implied commits before and afterwards. There is a lot going on, some of it dependent on the volume of data returned. The Oracle database writer writes things out when it feels like it, there are situations where it might just leave it in memory for a while. With nologging, Oracle may not care that you can't perform recovery if it is interrupted. So you might want to look into statspack or EM to tell you what is going on, the datafile statistics may not be all that informative for this case.
>
Most of the I/O is reading, a few of the I/O is writing.
My idea is not to optimize this query, it is to understand how it performs. Well, have you read the Concepts manual?
I have other implementations to test, namely I having trouble with one of them.
Furthermore, I doubt the query Plan Oracle is using actually involves tablescans (as I I'd like it to do); because in the Wait Events, most of the wait time for this query is spent doing "db file scattered read". And I think this is different from a tablescan.Please look up the definition of [db file scattered read|http://download.oracle.com/docs/cd/B19306_01/server.102/b14211/instance_tune.htm#sthref703].
>
Do you really have to use sessions external to the query session ? Can you query v$mystat joined to v$statname from the session itself.
No, I don't want to that!
I avoid as much as possible having the code I execute being implemented in java. Why do you think java has anything to do with this? In your session, desc v$mystat and v$statname, these are views you can look at.
When i can avoid it I don't query the database directly through JDBC, i use the RDBMS command line client, which is supposed to be very robust. Er, is that sqlplus?
So yes, I only connect to the database with JDBC... in very last session.
Of course, I Could Have put both the gather stats before query and gathers stats after query a single script: the script that would be also runing the query.
But that would cause me a number of problems, namely some of the SQL i build has to be implemented dynamically. And I don't want to be replicating the snapshoting code into every query script I make. This way I have one sql with the snapshoting scripts; and multiple scripts for running each query. I avoid code replication in this manner.Instrumentation is a large subject; dynamic sql generation is something to be avoided if possible. Remember, Oracle is written with the idea that many people are going to be sharing code and the database, so it is optimized in that way. For SQL parsing in particular, if every SQL is different, you get a performance problem called "hard parsing." You can (and generally should, and sometimes can't avoid) use bind variables so that Oracle doesn't need to hard parse every SQL. In fact, this is one of those things that applies to other engines besides Oracle. I would recommend you read Tom Kyte's books, he explains what is going on in detail, including in some places the non-Oracle viewpoint.
>
Furthermore, Since the database is not a production database, it is there so I can do my tests. I don't have to be concerned with what other sessions may be doing to my system. There are only the sessions I control.No, there are sessions Oracle controls. If you are on unix, you can easily see this, but there are ways to see it on Windows, too. In some cases, your own sessions can affect themselves.
>
then what it the array fetch size ? If the array fetch size is large enough the number of block visits would be similar to the number of physical block reads.
I don't know what the arraysize you mention is. i have not touched that parameter. So whatever it is, it's the default.You should find out! You can go to http://tahiti.oracle.com and type array fetch size into the search box. You can also go to http://asktom.oracle.com and do the same thing, with some more interesting detail.
>
By the way, I don't get the query results into my client, the query results are dumped into a target output table.
So, if the arraysize has something to do with the number of rows that Oracle is returning the client in each step... I think it doesn't matter.You may hear this phrase a lot:
"It depends."
>
As for the query plan, If i am not mistaken you can't get get query plans for queries that are: create table as select.What?
JG@TTST> explain plan for create table jjj as select * from product_master;
Explained.
JG@TTST> select count(*) from plan_table;
COUNT(*)
         3
I can however commit the create table part and just call for the evalution of the Select part of the query; i believe it should be same.
"Optimizer"     "Cost"     "Cardinality"     "Bytes"     "Partition Start"     "Partition Stop"     "Partition Id"     "ACCESS PREDICATES"     "FILTER PREDICATES"
"SELECT STATEMENT"     "ALL_ROWS"     "2563"     "586110"     "15238860"     ""     ""     ""     ""     ""
"UNION-ALL"     ""     ""     ""     ""     ""     ""     ""     ""     ""
"TABLE ACCESS(FULL) SONO99.PROFILE"     ""     "512"     "117222"     "3047772"     ""     ""     ""     ""     ""
"TABLE ACCESS(FULL) SONO99.PROFILE"     ""     "513"     "117222"     "3047772"     ""     ""     ""     ""     ""
"TABLE ACCESS(FULL) SONO99.PROFILE"     ""     "513"     "117222"     "3047772"     ""     ""     ""     ""     ""
"TABLE ACCESS(FULL) SONO99.PROFILE"     ""     "513"     "117222"     "3047772"     ""     ""     ""     ""     ""
"TABLE ACCESS(FULL) SONO99.PROFILE"     ""     "513"     "117222"     "3047772"     ""     ""     ""     ""     ""
This query plan was taken from sql developer, exported to txt, and the PROFILE table here has only 100k tuples.
Right now I am more concerned with testing the MODEL query. Which Oracle doesn't seem to be able any more... but that is a matter for another thread.
Regarding this plan. The Union ALL seems to be more than just a binary Operator... IT seems to be Neray.
The union all on that execution plan seems to be taking as leaf tables 5 99sono.Profile tables, and be making a table scan to them all. So I'd say that the RDBMS should only scan each database block once and not 5 times.
But: It doesn't seem to be so. IT seems like what oracle is doing is scanning completly each the table, and then moving on to next select statement in the UNION ALL. Because given the amount of source table that was read, 5 times greater than the size of the source table. Oracle didn't reuse read blocks.
But this is just my feeling.Your feeling is uninteresting. Telling us what you really hope to accomplish might be more interesting.
Anyway, in terms of consistent gets, how many consistent gets should the RDBMS be doing? 5
One for each table block?It depends.
>
My best regards,
Nuno (99sono xp).

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Hi,
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ALERT: No such method getWidth.()I
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Thanks!!

Hello,
I'm having the exact same problem and I'd like to know what changes you made to your code to get it working. My class is not an inner class and is very much like yours and so follows the form:
class MyCanvas extends Canvas{
int element = getWidth()/10;
public void paint(Graphics g) {        //Clear the Display
g.setColor(0,0,0); //black
g.fillRect(0,0,getWidth(),getHeight());
I am also using WTK104. I did not have this problem until I renamed my file. I carried the renaming throughout the rest of the file in a consistent fashion and I don't see any problems with it. Any help appreciated.

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I've made changes and now my code looks like this:
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Hi,
I am similar problem with JCS indexed cache machanism for writing data to disk, but I am not successful with below cache.ccf configuration.
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Appriciate your quick response.
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jcs.auxiliary.DC.attributes=org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheAttributes
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com.solarmetric.kodo.DataCacheClass=com.solarmetric.kodo.runtime.datacache.p
lugins.CacheImpl
com.solarmetric.kodo.RemoteCommitProviderClass=com.solarmetric.kodo.runtime.
event.impl.SingleJVMRemoteCommitProvider
The exception I'm getting follows. I'm curious if anyone has any insight
into what's going on? I'm sure there is a problem with my code, I'm
forgetting to close something or other but since it works fine without the
cache I'm really stuck as to what it is.
Thanks
Michael
22:17:32,792 ERROR ObjectFinder - Exception =
com.solarmetric.kodo.runtime.FatalUserException: The ResultList has been
closed.
NestedThrowables:
com.solarmetric.kodo.runtime.ClosurePoint: Closure point of object held in
embedded stack trace.
com.solarmetric.kodo.runtime.FatalUserException: The ResultList has been
closed.
NestedThrowables:
com.solarmetric.kodo.runtime.ClosurePoint: Closure point of object held in
embedded stack trace.
at
com.solarmetric.kodo.runtime.objectprovider.EagerResultList.checkClosed(Eage
rResultList.java:66)
at
com.solarmetric.kodo.runtime.objectprovider.EagerResultList.get(EagerResultL
ist.java:84)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.get(Cac
hingRandomAccessList.java:124)
at java.util.AbstractList$Itr.next(AbstractList.java:416)
at java.util.AbstractList.equals(AbstractList.java:604)
at serp.util.WeakCollection$WeakValue.equals(WeakCollection.java:123)
at java.util.HashMap.eq(HashMap.java:270)
at java.util.HashMap.removeEntryForKey(HashMap.java:525)
at java.util.HashMap.remove(HashMap.java:507)
at java.util.HashSet.remove(HashSet.java:198)
at serp.util.RefValueCollection.removeFilter(RefValueCollection.java:272)
at serp.util.RefValueCollection.remove(RefValueCollection.java:235)
at
com.solarmetric.kodo.runtime.datacache.query.QueryCacheImpl.unregisterClassC
hangeListener(QueryCacheImpl.java:160)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.abortCa
ching(CachingRandomAccessList.java:103)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.get(Cac
hingRandomAccessList.java:149)
at java.util.AbstractList$Itr.next(AbstractList.java:416)
at java.util.AbstractList.hashCode(AbstractList.java:624)
at serp.util.WeakCollection$WeakValue.<init>(WeakCollection.java:93)
at serp.util.WeakCollection.createRefValue(WeakCollection.java:64)
at serp.util.RefValueCollection.addFilter(RefValueCollection.java:193)
at serp.util.RefValueCollection.add(RefValueCollection.java:166)
at serp.util.RefValueCollection.add(RefValueCollection.java:157)
at
com.solarmetric.kodo.runtime.datacache.query.QueryCacheImpl.registerClassCha
ngeListener(QueryCacheImpl.java:151)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.<init>(
CachingRandomAccessList.java:76)
at
com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery.wrapList(CacheA
wareQuery.java:146)
at
com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery.execute(CacheAw
areQuery.java:270)
at
com.verideon.veriguard.persistence.ObjectFinder.getObjects(ObjectFinder.java
:62)
at
com.verideon.veriguard.persistence.ObjectFinder.getObject(ObjectFinder.java:
44)
at
com.verideon.veriguard.persistence.ObjectFinder.getRole(ObjectFinder.java:91
at
com.verideon.veriguard.services.VeriguardService.createCustomerAccount(Verig
uardService.java:210)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.createTestUser(
TestVeriguardServiceMonitors.java:133)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.setUp(TestVerig
uardServiceMonitors.java:80)
at junit.framework.TestCase.runBare(TestCase.java:125)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:392)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.
java:276)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner
..java:167)
NestedThrowablesStackTrace:
com.solarmetric.kodo.runtime.ClosurePoint: Closure point of object held in
embedded stack trace.
at
com.solarmetric.kodo.runtime.objectprovider.EagerResultList.close(EagerResul
tList.java:78)
at com.solarmetric.kodo.impl.jdbc.query.JDBCQuery.close(JDBCQuery.java:127)
at com.solarmetric.kodo.query.QueryImpl.closeAll(QueryImpl.java:637)
at
com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery.closeAll(CacheA
wareQuery.java:343)
at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.closeQueries(Persistence
ManagerImpl.java:934)
at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.close(PersistenceManager
Impl.java:914)
at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.close(PersistenceManager
Impl.java:884)
at com.verideon.veriguard.services.PMService.close(PMService.java:120)
at com.verideon.veriguard.services.PMService.close(PMService.java:111)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.deleteTestUser(
TestVeriguardServiceMonitors.java:127)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.tearDown(TestVe
riguardServiceMonitors.java:103)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:392)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.
java:276)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner
..java:167)

Michael,
Could you send your test case to [email protected] so that we
can take a look at what's going on to cause this exception?
Thanks,
-Patrick
On Thu, 22 May 2003 17:18:50 -0400, Michael wrote:
I'm testing out the data cache to see if it helps some of my performance
problems, but I now get lots of exceptions that I didn't get before I
enabled the cache. Here's how I enabled it:
# CACHE
com.solarmetric.kodo.DataCacheClass=com.solarmetric.kodo.runtime.datacache.p
lugins.CacheImpl
com.solarmetric.kodo.RemoteCommitProviderClass=com.solarmetric.kodo.runtime.
event.impl.SingleJVMRemoteCommitProvider
The exception I'm getting follows. I'm curious if anyone has any
insight into what's going on? I'm sure there is a problem with my code,
I'm forgetting to close something or other but since it works fine
without the cache I'm really stuck as to what it is.
Thanks
Michael
22:17:32,792 ERROR ObjectFinder - Exception =
com.solarmetric.kodo.runtime.FatalUserException: The ResultList has been
closed.
NestedThrowables:
com.solarmetric.kodo.runtime.ClosurePoint: Closure point of object held
in embedded stack trace.
com.solarmetric.kodo.runtime.FatalUserException: The ResultList has been
closed.
NestedThrowables:
com.solarmetric.kodo.runtime.ClosurePoint: Closure point of object held
in embedded stack trace.
at
com.solarmetric.kodo.runtime.objectprovider.EagerResultList.checkClosed(Eage
rResultList.java:66)
at
com.solarmetric.kodo.runtime.objectprovider.EagerResultList.get(EagerResultL
ist.java:84)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.get(Cac
hingRandomAccessList.java:124)
at java.util.AbstractList$Itr.next(AbstractList.java:416) at
java.util.AbstractList.equals(AbstractList.java:604) at
serp.util.WeakCollection$WeakValue.equals(WeakCollection.java:123) at
java.util.HashMap.eq(HashMap.java:270) at
java.util.HashMap.removeEntryForKey(HashMap.java:525) at
java.util.HashMap.remove(HashMap.java:507) at
java.util.HashSet.remove(HashSet.java:198) at
serp.util.RefValueCollection.removeFilter(RefValueCollection.java:272)
at serp.util.RefValueCollection.remove(RefValueCollection.java:235) at
com.solarmetric.kodo.runtime.datacache.query.QueryCacheImpl.unregisterClassC
hangeListener(QueryCacheImpl.java:160)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.abortCa
ching(CachingRandomAccessList.java:103)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.get(Cac
hingRandomAccessList.java:149)
at java.util.AbstractList$Itr.next(AbstractList.java:416) at
java.util.AbstractList.hashCode(AbstractList.java:624) at
serp.util.WeakCollection$WeakValue.<init>(WeakCollection.java:93) at
serp.util.WeakCollection.createRefValue(WeakCollection.java:64) at
serp.util.RefValueCollection.addFilter(RefValueCollection.java:193) at
serp.util.RefValueCollection.add(RefValueCollection.java:166) at
serp.util.RefValueCollection.add(RefValueCollection.java:157) at
com.solarmetric.kodo.runtime.datacache.query.QueryCacheImpl.registerClassCha
ngeListener(QueryCacheImpl.java:151)
at
com.solarmetric.kodo.runtime.datacache.query.CachingRandomAccessList.<init>(
CachingRandomAccessList.java:76)
at
com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery.wrapList(CacheA
wareQuery.java:146)
at
com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery.execute(CacheAw
areQuery.java:270)
at
com.verideon.veriguard.persistence.ObjectFinder.getObjects(ObjectFinder.java
:62)
at
com.verideon.veriguard.persistence.ObjectFinder.getObject(ObjectFinder.java:
44)
at
com.verideon.veriguard.persistence.ObjectFinder.getRole(ObjectFinder.java:91
at
com.verideon.veriguard.services.VeriguardService.createCustomerAccount(Verig
uardService.java:210)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.createTestUser(
TestVeriguardServiceMonitors.java:133)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.setUp(TestVerig
uardServiceMonitors.java:80)
at junit.framework.TestCase.runBare(TestCase.java:125) at
junit.framework.TestResult$1.protect(TestResult.java:106) at
junit.framework.TestResult.runProtected(TestResult.java:124) at
junit.framework.TestResult.run(TestResult.java:109) at
junit.framework.TestCase.run(TestCase.java:118) at
junit.framework.TestSuite.runTest(TestSuite.java:208) at
junit.framework.TestSuite.run(TestSuite.java:203) at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:392)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.
java:276)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner
.java:167)
NestedThrowablesStackTrace:
com.solarmetric.kodo.runtime.ClosurePoint: Closure point of object held
in embedded stack trace.
at
com.solarmetric.kodo.runtime.objectprovider.EagerResultList.close(EagerResul
tList.java:78)
at
com.solarmetric.kodo.impl.jdbc.query.JDBCQuery.close(JDBCQuery.java:127)
at com.solarmetric.kodo.query.QueryImpl.closeAll(QueryImpl.java:637) at
com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery.closeAll(CacheA
wareQuery.java:343)
at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.closeQueries(Persistence
ManagerImpl.java:934)
at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.close(PersistenceManager
Impl.java:914)
at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.close(PersistenceManager
Impl.java:884)
at com.verideon.veriguard.services.PMService.close(PMService.java:120)
at com.verideon.veriguard.services.PMService.close(PMService.java:111)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.deleteTestUser(
TestVeriguardServiceMonitors.java:127)
at
com.verideon.veriguard.services.TestVeriguardServiceMonitors.tearDown(TestVe
riguardServiceMonitors.java:103)
at junit.framework.TestCase.runBare(TestCase.java:130) at
junit.framework.TestResult$1.protect(TestResult.java:106) at
junit.framework.TestResult.runProtected(TestResult.java:124) at
junit.framework.TestResult.run(TestResult.java:109) at
junit.framework.TestCase.run(TestCase.java:118) at
junit.framework.TestSuite.runTest(TestSuite.java:208) at
junit.framework.TestSuite.run(TestSuite.java:203) at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:392)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.
java:276)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner
.java:167)--
Patrick Linskey
SolarMetric Inc.

Run page with cleared cache after edit in application builder

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Is there an easier way to do this?
There are currently two "run" buttons in the application builder. There is the button that says "run" and there is the "traffic light". Maybe one of those can be used the run the page with a cleared cahche and the other one with the cache still intact.
Edited by: Rene W. on Dec 23, 2010 6:26 AM

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public interface Mutator<T extends Individual<S>, S> {
     public void apply( T<S> ind );
public abstract class AbstractMutator<T extends Individual<S>, S> implements Mutator<T, S> {
     public abstract void apply( T<S> ind );
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I am trying to download Apex report in CSV format, but, as I have Clear cache After Region data gets cleared and nothing the saved in CSV file. If I remove Clear Cache option I am able to download report in CSV format, but, as cache entries are not cleard it is fetching all records related to previous entry which is not intended. This is all happening in single session. If I logout and login again, then cache is cleard. But in single session when I move from one report to another cache entries are not cleared.
Appreciate your help.

Hi,
I am trying to download Apex report in CSV format, but, as I have Clear cache After Region data gets cleared and nothing the saved in CSV file. If I remove Clear Cache option I am able to download report in CSV format, but, as cache entries are not cleard it is fetching all records related to previous entry which is not intended. This is all happening in single session. If I logout and login again, then cache is cleard. But in single session when I move from one report to another cache entries are not cleared.
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We recently changed our program to use statement cache, but we found a problem and not yet a solution.
We have problems in this situation:
OCIEnvCreate();
OCIHandleAlloc();
OCILogon2(..... OCI_LOGON2_STMTCACHE);
OCIStmtPrepare2("CREATE TABLE db_testeSP (cod_usuario INTEGER, usuario CHAR(20), dat_inclusao DATE)")
OCIStmtExecute();
OCIStmtRelease(... OCI_DEFAULT);
OCIStmtPrepare2("INSERT INTO db_testeSP (1,\'user\',CURRENT_DATE");
OCIStmtExecute();
OCIStmtRelease(... OCI_DEFAULT);
OCIStmtPrepare2("SELECT * FROM db_testeSP");
OCIStmtExecute();
OCIStmtRelease(... OCI_DEFAULT);
OCIStmtPrepare2("DROP TABLE db_testeSP");
OCIStmtExecute();
OCIStmtRelease(... OCI_DEFAULT);
OCIStmtPrepare2("CREATE TABLE db_testeSP (cod_usuario INTEGER, usuario CHAR(20), idade INTEGER, dat_inclusao DATE)");
OCIStmtExecute();
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OCIStmtPrepare2("INSERT INTO db_testeSP (1,\'user\',20,CURRENT_DATE");
OCIStmtExecute();
OCIStmtRelease(... OCI_DEFAULT);
OCIStmtPrepare2("SELECT * FROM db_testeSP");
OCIStmtExecute();
OCIStmtRelease(... OCI_DEFAULT);
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This situation above is just an example, but I think that this will cause other problems too.
Our program is a gateway from the main program and database, so I don't know the SQL instructions before executing. How can we resolve this problem?
I have tested this issue with Oracle 10g (10.2.0.4.0) and 11g (11.2.0.1.0) both 64 bits and the result is the same (the OCI is version 11.2.0).
We appreciate any help.
Thanks in advance,
Daniel

After long time searching for answers, apparently this is expected to happen and the program should not use Statement caching in this situation.
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