-pool cache.
This would be sort of redefining Identity to be a composite of current
definition (all persistent fields with primary-key=true) and jcdAlias
from the connection-pool.
Any thoughts about this? Has anyone tried a similar solution?
TIA,
Martin
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are not affected by those.)
-You just made my day! :-)
Cheers,
Martin
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/deployment.html for the OJB
deployment guide, or (more to the point)
http://db.apache.org/ojb/dependencies.html for a list of the JAR-files
you need to deploy with OJB.
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/PersistenceBroker.html#removeFromCache(java.lang.Object)
(And then a new load, of course.)
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') is the only one that would
match char[5]
(or addLike(pkAlias, 'FR%') but that is ambigous).
Cheers,
Martin
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follow
reference-descriptors and remove them from cache too in step 1). Or you
could just follow Armin Waibel's instructions about clearing the whole
cache if you would like _all_ objects to be reloaded.
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. Thanks!
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if Oracle kicked you out).
Cheers,
Martin
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from cache)
myRemoveFromCache(O) = removeFromCache(C);removeFromCache(O)
load(O) (loads O and C from database)
Thank you very much for your help.
NP; trying to learn myself. :-)
Cheers,
Martin
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-broker-cache. This can lead to java.lang.OutOfMemoryError if there
are circular auto-retrieve references in the repository.
ObjectCacheDefaultImpl can cope with this beacuse of it's static/global
cache and would not reveal this mapping problem.
Regards,
Martin
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/howto-work-with-clustering.html
Regards,
Martin
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Hennebelle wrote:
personnally, I put :
criteria.addSql(date = TO_DATE('2004', ''));
There's also:
criteria.addEqualTo(date, TO_DATE('2004', ''));
Works similar with all operators/'add'-methods on a Criteria.
Regards,
Martin
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}
conversion=com.mycompany.PrimitiveLong2LongFieldConversion/
HTH,
Martin
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with Oracle (or even different
versions on MySQL server).
Regards,
Martin
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on the
machine running OJB)
2. Update to OJB from CVS HEAD and use the new Oracle9i platform which
supports Oracle-style inserts of large LOB values with the thin driver.
If you switch to this platform both thin and OCI will work, but only OCI
will support batch-mode=true.
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this behaviour. (A two-level cache
has been in the works for some time, and my bet is that you will see one
in OJB 1.1).
However; I don't consider myself as one of the gurus so feel free to
disregard all of the above. :-D
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by changing the proxy-prefetching-limit to a value =0 in your
repository -- typically on the collection-descriptor causing problems.)
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. (If they are using Oracle at alla that is...)
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.
(But I would like to get a stab at this as soon as possible.)
Unfortunately there doesn't seem to be a huge number of OJB developers
with an Oracle server installation at hand, so development can be a bit slow
at times - please contribute all you can.
Regards,
Martin
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pointless =)
..it seems that your chances are slim getting reverse-db to work.
...does anyeone know how to get the last driver working?
Armin Waibel wrote on the comments for OJB154:
Work on reverseDB is halted, we recommend to use another tool, e.g. Druid
Regards,
Martin
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Bruno CROS bruno.cros at gmail.com writes:
it's important to note that mapping date attributes such as
java.sql.Time java.util.Date (with hours ...) and even
java.sql.Timestamp using DATE oracle type IS NOT POSSIBLE since
Oracle 9.2 !! (Hours are lost ... with all it can occurs too !)
FYI:
Danilo Tommasina dtommasina at risksys.com writes:
When using the Oracle9i platform storing Blobs/Clobs does not work when using
the DBCP connection factory
(org.apache.ojb.broker.accesslayer.ConnectionFactoryDBCPImpl)
Hi Danilo,
thank you for your patch and suggestions.
Unfortunately this
Thierry Hanot wrote:
Hello All just for info.
It does not look like bug but more like a small missing feature :) .
A support of Oracle thin driver 10 does not exist in Ojb. It could be nice
to have it in Obj 1.0 because normally ( just reading the documentation ) ,
there is is a lot of
Dougall Squair wrote:
Are you running within a managed environment? We seem to be getting a
similar exception
when we use the Oracle9i platform support class, I suspect it's caused by
WebLogic wrapping the Oracle connection object.
Generic unwrapping of both Connection and PreparedStatement have
Thierry Hanot wrote:
Hello , i have a problem when loading some data from blob.
I use the standard support of lob in plateform Oracle 9i.
The problem is when i try to load object with a blob in different Thread.
I request a broker from thread 1 for loading objects with lob.
I request an other
Danilo Tommasina wrote:
I found out that there is the method getInnermostDelegate() on the DBCP
DelegatingPreparedStatement calling this will return the original
PreparedStatement independently on how many hierarchies of wrappers DBCP
is using.
That's perfectly right -- yesterday I added a
Danilo Tommasina wrote:
There is a problem with using Oracle and the default DBCP connection
factory, since PreparedStatement caching in DBCP will eat all your
Oracle cursors rather quickly. See the release notes for a work-around
(set PSPoolFactory==null). In OJB 1.1 the configuration
Don Lyon wrote:
I ran into a similar problem using JBoss as the managed environment. Could
we add that to the list for 1.0.2?
Hello Don, thank you for your report.
protected static final String UNWRAP_CONN_METHOD_NAMES[] =
getUnderlyingConnection /* JBoss */
[...]
Markus Wolf wrote:
is there a way to reuse existing connections for the whole OJB setup?
I've implemented a ConnectionFactory for OJB as Excalibur component, but
when I create a new database and open it (as stated in the tutorials)
the repository_database.xml part is always expected.
Are there
Hiller, Frank RD-AS2 wrote:
In the first table I have the machines and in the second one the
currently logged on persons. In the EMPLOYEES table I'm using a PK of
two columns (PERSONALID / MACHINEID). I'm not using ID. When a person
logs off, it is not deleted from EMPLOYEES table when using
Don Lyon wrote:
It looks like unwrapping the connection in initializeJdbcConnection() is
causing another problem for managed connections in JBoss. Trying to
setStatementCacheSize throws the exception:
Caused by: java.sql.SQLException: Statement Caching cannot be enabled for
this logical
Markus Wolf wrote:
So doesn't this log output mean the files are not found?...
Am I missing something here? Can anybody give me a hint how to
successful load the repository.xml from a jar-file?
I have all repository parts in the root (default-package) of my jar-file.
This setup works for me. OJB
Don Lyon wrote:
Here's the debug from the statement cache exception:
2005-03-17 10:23:32,546 DEBUG
[org.apache.ojb.broker.platforms.PlatformOracle9iImpl] PlatformOracle9iImpl
could not enable Oracle statement caching. Original/unwrapped connection
Hiller, Frank RD-AS2 wrote:
using p6spy was a good idea.
I tryed the way of using only pb.store(obj) with the following result.
I had a machine with three employees logged on. Now I let a fourth person log
on to the machine on my test system.
The person was added to the EMPLOYEES table, I can see
Geigl Maximilian, R235 wrote:
does the plattform setting 'Oracle9i' only affect the client side and can i use it together with an 8i database, or do i have to use 9i on either side if i use Oracle9i in my connection descriptor.
Very old post, but for the record I will answer anyway...
See this
Charles N. Harvey III wrote:
(MetadataManager.java:155) - No repository.xml file found, starting
with empty metadata and connection configuration
See also
http://nagoya.apache.org/eyebrowse/[EMAIL PROTECTED]msgNo=16025
This has been known to be working (see my reply to Markus). Are you
Charles N. Harvey III wrote:
I am using the binary release of OJB 1.0.1. And I don't know which
XML parser I am using. I don't even know where to specify that.
The only xml processing jar in my classpath is dom4j. Should something
else be there?
I just put xerces-2.4.0 in the WEB-INF/lib/ to no
Markus Wolf wrote:
So doesn't this log output mean the files are not found?...
Am I missing something here? Can anybody give me a hint how to
successful load the repository.xml from a jar-file?
As Charles Harvey just pointed out, if your are using a repository with
a HTTP dtd-declaration the
Markus Wolf wrote:
Thanks for your help,
When the dtd is in the jar also (in the same directory) then it works.
Great - but it really shows that the error reporting needs to be shaped
up in that area.
When specifying then ConnectionFactoryManagedImpl then each and every
connection attempt is
Hiller, Frank RD-AS2 wrote:
is there a way to check if user uD was successfully associated to M?
Have add and remove of associations to be done manually?
What I was trying to say was just that you need to perform the
operations on the vector that OJB returns, not to make a new vector, add
an
Bruno CROS wrote:
I setup a repository.xml as ojb-blank project
description of my file is below. This file works very well on Tomcat
over windows, but not at all on AIX !
This is the third subject on the same issue in a pretty short time, the
other two were resolved by changing DTD declaration
Mike Jackson wrote:
I've been looking at the docs but I don't see one that screams here. Can
someone point me at something that tell me how to setup for composite
primary keys?
Use primarykey=true on multiple field-descriptor elements, and the key
will be composed as a composite of all those.
Greetings all,
first off - all the different hints of how not to leave open
connections at webapp shutdown (ie using DBCP in Tomcat and supply JNDI
DataSource to OJB, or explicitly calling release methods in OJB at
shutdown) are equally good ways of doing.
Danilo Tommasina wrote:
however it
krupa B wrote:
Can somebody suggest a good book or tutorials in easy to understand manner.
Did you try the Getting Started section?
http://db.apache.org/ojb/docu/getting-started.html
You can also find useful info in the FAQ:
Getting Started:
http://db.apache.org/ojb/docu/faq.html#gettingStarted
Philip Denno wrote:
Actually, I found the jar file, but now I get NullPointerExceptions.
Did you check the JDO tutorial?
http://db.apache.org/ojb/docu/tutorials/jdo-tutorial.html
Regards,
Martin
P.S. JDO support in OJB is not yet production-ready, or as stated
on the homepage: A full JDO
Danilo Tommasina wrote:
we just upgraded to OJB 1.0.2, the fixes in Oracle9i platform work like
a charm
many, many thanks again for the great work to everybody that contributed.
Hi Danilo,
that's great to hear! Thank you for contributing valuable feedback,
code suggestions and for reporting back
Charles Anthony wrote:
Dear Mr/Ms List Admin - could you please remove this address from the
mailing list.
In progress... Also see your welcome mail from the list and the footer
of every post for how to get in touch with the list owner directly.
It's beginning to get on my nerves - I don't think I
Philip Denno wrote:
I gave up as I ran into a bug with the implementation.
I am sure the OJB JDO developers will want to hear your feedback,
although the JDO layer is known not to be complete.
I then found an article which used the PersistenceBroker
(instead of the PersistenceManager) and it
Charles Anthony wrote:
Dear Mr/Ms List Admin - could you please remove this address from the
mailing list.
In progress...
Geir Magnusson Jr. (of the infrastructure team) has fixed this.
Regards,
Martin
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Bikram B Kapoor wrote:
I am facing a serious problem with Connection in OJB. The
situation this error occurs is when the site has been inactive for quite
some time
Use a validation query that just performs a fast/simple query to ping the
database server. This can be eg SELECT 1
Nils Liebelt wrote:
I need a simple Listener which methods get called after insert, update and
delete. I just found Listener for Transaction stuff in the API. Any
suggestions?
If it is an option for you to modify your persistence beans, you can
implement
Hari Om wrote:
hello I am using JDK1.4, OJB, and Oracle 9.2.0.2 on SuSE Linux 9.0
We ha dthis Web Application Running for few months... and there was NO
ACTIVITY on this web site in past 4-6 weeks... and now when I log on to
that I get following ERRORS...wonder why...
Oracle RDBMS will
Hari Om wrote:
Thanks Martin...any other input on this?
You're most welcome. Not sure what you mean with other input... Just click
the link below and read my previous reply in the mail archive, for more
detailed info on how to enable a validation query for OJB pooled connections:
See
Laran Evans wrote:
So is there some trick to running the create-db task in the generator to
create a database in Oracle?
Just make sure that database hostname, port number and Oracle SID are all
set in the oracle or oracle9i profile you are using in OJB.
When I run the task I get a The Network
Martin Kalén wrote:
So is there some trick to running the create-db task in the generator
to create a database in Oracle?
Just make sure that database hostname, port number and Oracle SID are all
set in the oracle or oracle9i profile you are using in OJB.
P.S. I assume you performed check 1A
Andreas Bohnert wrote:
Postgres (for example) don't use cursors on default. The PG jdbc driver
loads the entire ResultSet all at once and keeps it in memory! So, even
if you do a getIteratorByQuery the memory load on a large resultset is
huge!
You can get around this, if you set the fetchsize
Martin Kalén wrote:
Postgres (for example) don't use cursors on default. The PG jdbc
driver loads the entire ResultSet all at once and keeps it in memory!
So, even if you do a getIteratorByQuery the memory load on a large
resultset is huge!
You can get around this, if you set the fetchsize
Martin Kalén wrote:
Postgres (for example) don't use cursors on default. The PG jdbc
driver loads the entire ResultSet all at once and keeps it in memory!
So, even if you do a getIteratorByQuery the memory load on a large
resultset is huge!
You can get around this, if you set the fetchsize
Martin Kalén wrote:
It might be possible to use fetch size 1 explicitly only for iterators,
I will have a look at this too.
This is a bigger refactoring since it affects internal statement creation
and would need many internal methods' signature to be expanded with a flag
and/or explicit size
Bobby Lawrence wrote:
Nevermind - it seems that I needed to set the useAutoCommit='0' in my
connection descriptor.
That's right - WebLogic (and other EJB-containers) needs to handle this
globally so that OJB does not commit a global transaction and breaks
the container-managed transaction
Mike Jackson wrote:
I'm running on an Oracle database (8i) with insert triggers to create
artifical keys for my table records. The howtos seemed to indicate that
SequenceManagerNativeImpl might be the proper sequence manager to use but
the keys are coming out goofy, so clearly I'm not
Bobby Lawrence wrote:
It seems that my database has triggers on it that insert the nextval
from the sequence upon insert.
So OJB determines the sequence, and then Oracle does the same thing.
Thats why my sequences are being called twice...
Also beware of Oracle sequence caching if your
Alessandro Colantoni wrote:
Change are really written to the database.
I get an error of MsSQLServer.
Beware that MySQL using MYISAM storage in early versions [*]
does not implement database transactions.
Either use InnoDB if your licensing requirements permit it or
try to upgrade to a newer MySQL
Lemke, Wesley wrote:
Anyone have any luck setting up p6spy with Websphere 5.1? This is kind
of on-topic because Thomas suggested I try it for debugging the OJB
issue.
Anyone familiar with this error:
[4/15/05 10:07:48:319 CDT] 68779cc2 FreePool E J2CA0046E: Method
[EMAIL PROTECTED] wrote:
I belive some of this stuff was changed for them in 5.5 and the dbcp part is
called:
naming-factory-dbcp.jar
I am not using another dbcp library.
OJB is at the moment directly dependent on Commons DBCP to work at run-time,
even if you don't use the Commons
[EMAIL PROTECTED] wrote:
I thought I would not need or even want the commons dbcp because of this speicific link:
I was a bit unclear in my last post. Rephrase:
* unless you change the default OJB.properties, OJB will not use DBCP
* unfortunately there is a class-dependency at run-time from
Stijn de Witt wrote:
We have developed a web application using OJB. All seems to work fine,
but after some hours of being deployed we run into a problem.
snip/
java.io.EOFException
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1394)
snip/
I have seen a number of solutions mentioned:
1)
Maksimenko Alexander wrote:
I have tree like structure (with parent,children relationships). I'm
using proxies to lazy materialize them. Everything works well but in
particular cases I have to materialize the whole tree because
folder.getChildren().get(0).getParent() is not the same as folder
Lemke, Wesley wrote:
Our problem occurs when we save a GenericGroup. It will first save the
ClientBillingInfo object, so it puts -1 in the generic_grp_id field of
the client_billing table (We are using database generated keys).
If I understand you correctly, your problem is that your DB will set
Stas Ostapenko wrote:
org.apache.commons.lang.SerializationException: java.lang.ClassNotFoundException
: Domain
So, java.lang.ClassNotFoundException occurs. But Domain.class is in
the same directory with test_copyOfGlobalRepository. class ! At
Jakob Braeuchi wrote:
i just comitted a patch (OJB 1.1) to solve this problem. please have a
look at it.
FYI: the setFetchSize hint is available in OJB_1_0_RELEASE branch
(as beta-status, with refactoring warning!) waiting to be merged
with the trunk.
Whenever I get a free timeslot I will look
[EMAIL PROTECTED] wrote:
I've always (in OJB ODMG) used
cascading delete bounded by appropriate auto-delete settings; now it looks
as if I have no choice but to delete each individual object by hand. True?
Setting the cascading delete settings by relationship type (1:1, 1:n,
m:n) seems
Stas Ostapenko wrote:
So, here is new code
public class Domain implements java.io.Serializable
SerializationUtils needs Serializable classes by contract,
this should probably be better documented. Any suggestions
as to where in the docs/config files you would first look
for this? (So we could
Stijn de Witt wrote:
The advantage of mastering the Commons Pool options is that this will
work with all database servers that OJB supports, not just MySQL.
Do you know if the autoReconnect=true option alone will fix it? I have
seen mention of autoReconnectForPools option? We are not planning
Stas Ostapenko wrote:
Hi Martin !
I`m using the following JVM
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
Java HotSpot(TM) Client VM (build 1.4.2_04-b05, mixed mode)
and no app servers or other software for this simple (work or not) test.
Info
Stas Ostapenko wrote:
Hi Martin !
I`m using the following JVM
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
Java HotSpot(TM) Client VM (build 1.4.2_04-b05, mixed mode)
and no app servers or other software for this simple (work or not) test.
I just
Greetings,
as some of you know there have been previous discussions on the list
about the responsibility for validation of discarded Connection instances
in the object pools in OJB's default ConnectionManagerPooledImpl and
ConnectionManagerDBCPImpl.
A user-submitted patch applied to OJB's pooling
Andreas Bohnert wrote:
Postgres (for example) don't use cursors on default. The PG jdbc driver
loads the entire ResultSet all at once and keeps it in memory! So, even
if you do a getIteratorByQuery the memory load on a large resultset is
huge!
You can get around this, if you set the fetchsize
Andreas Bohnert wrote:
I have just run several tests with different hints. It works very well,
however, if I don't set a hint, no cursors are used, even with
getIteratorByQuery!
Good to hear that it's working well!
But maybe that's not too bad. If you enable cursors on iterators by
default,
Cesar Leite wrote:
the project OJB will be interrupted?
I certainly do not hope so! In that case, they forgot to tell me. ;)
Cheers,
Martin
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Alessandro Vincelli wrote:
I have tried, but I have had great problems.
Tomcat always says:
Message: Scheduler with name 'Cocoon' already exists.
This is only the effect of a previous error.
Cocoon has the following web.xml configuration:
load-on-startup1/load-on-startup
This means that Tomcat
Vagula wrote:
I have an identity column in my database.
Lets day for example in Activity table we have identity
column act_code.
What are the steps I should be following?
Do you want to:
a) just map ACTIVITY.ACT_CODE as primary key in OJB?
b) use database
Bobby Lawrence wrote:
Nevermind on any of this...
I have found the solutioneither upgrade to = OJB 1.0.2, or use
WLOracle9i platform.
Hi Bobby, since I have been working a bit in this area
I do actually mind - even if it now works for you. :)
I am interested in feedback from users running OJB
Charles Anthony wrote:
Just a note on p6spy which may, or may not, be relevant : I've often had
problems with processes finding the p6spy.properties file - it always seems
to work for me if the file is in the current directory when the process
starts.
So, for tomcat, for example, it seems to read
Nils Liebelt wrote:
Having some trouble with the OJB caching. I use the default implementation
which should give a global cache for all Brokers.
My Business objects have a store() method that inserts/updates this object
towards the db and removes this object from the cache with the
wilson lists wrote:
I need to run a plain SQL Update inside a PersistenceBroker
transaction. The DBMS is Oracle 8.
Trimming your example a bit:
broker = PersistenceBrokerFactory.createPersistenceBroker(pbKey);
broker.beginTransaction();
conn =
Bobby Lawrence wrote:
I am currently working on another project for a short time, but I am
going back to our OJB/WebLogic/Oracle9i project soon.
We are currently on OJB 1.0.1, but I am planning on upgrading to 1.0.3
soon.
When I get a chance, I will test the regular Oracle9i platform and tell
[EMAIL PROTECTED] wrote:
Martin,
Can you elaborate on this a bit? Why does the change in location of
spy.properties solve the problem? Should deregister work on its own?
Also, would a similar consideration apply if Tomcat is using a JDBC-based
realm? I've never had any luck getting p6spy to
Edson Carlos Ericksson Richter wrote:
Could someone point me to a change log or something else (if exists), or
if this not exist, just tell me - so I don't stay looking for something
that I'll never find ;-)
You could try eg:
Júlio Cesar de Melhado e Lima wrote:
I'm using Tomcat 5.0.28, Postgres 7.4 and OJB 1.0.1.
So, I made available a JNDI Resource mydatasource, and this resource
is accessable ( I wrote a tiny jsp page to lookup for this object and
everything looks fine ).
Then a change the file
Bobby Lawrence wrote:
I just upgraded from OJB 1.0.1 to 1.0.3 and I keep getting an
java.io.InvalidClassException:
snip/
I have NOT changed my OJB.properties file, could this have something to
do with it?
Without looking to deeply into the stacktrace you sent;
it is always recommended to
Rahul Srivastava wrote:
Hi
i am having a rpoblem with JDO . please help me for this.
snip/
[java] com.sun.jdori.enhancer.util.InternalError: assertion failed:
cannot
find class file for class: org/apache/ojb/tutorial5/Product
snip/
BUILD FAILED
D:\ojb-blank\ojb-blank\build.xml:226: Java
Philippe Guillard wrote:
Thanks Charles,
Unfortunately i get the same result without parameter. ( I use JDO 1.01
form Sun, OJB as integrated in cocoon framework).
You guess right i 've built the DB by hand before and adapted a
repository later. It is not supposed to be used at runtime, but i
Martin Kalén wrote:
The index-descriptor is (as Charles pointed out) only used if you generate
DDL/SQL with OJB using Torque.
If you create your database by hand, you can remove all index-descriptor
attributes to get a cleaner OJB repository.
Clarification: The index-descriptor attribute
Nils Liebelt wrote:
I get a wired Exception thrown by a OJB application seems like something
deep out of the MySQL JDBC.
snip/
The error only occures when the system
isn't answering any request for a while.
snip/
java.sql.SQLException: Communication link failure: java.io.EOFException,
You
Armin Waibel wrote:
Well -
The OJB jar is not in the web-app classpath.
I have the jar in the EJB classpath.
I have removed it and I get the desired effect...the app server can't
find the PersistenceBroker class.
When I use ANY version of 1.0.1, I get this exception.
you mentioned that you
Alessandro Colantoni wrote:
I'm trying to use the ojb implementation of PropertySet (a framework of
opensymphony.com http://opensymphony.com)
There is a piece of code
Criteria critere = new Criteria();
critere.addEqualTo(globalKey, globalKey);
critere.addLike(itemKey, key);
When executing
Philippe Guillard wrote:
Then i red somthing i should read before in FAQ section 3.3 I recommend
to not use JDO now, but to use the existing ODMG api for the time being
and wonder if this would affect my problem too...
Any suggestion / what i should do next?
If you have any doubts about the
Dennis Riedel wrote:
repository_database.xml:
#
jdbc-connection-descriptor default-connection=true jcd-alias=postgres-pool
platform=postgresql subprotocol=postgresql
Is it a MUST DO to configure OJB for a specific database before BUILD ? I just
compiled cocoon with the JDO libraries
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