Pooled data sources

I've defined a pooled data-source, with an inactivity-timeout="30", min-connections="2" and max-connection="5". I've monitor database connections and when maximum number of connections is reached (5), it never decreases, even past a lot of time (more than 30 obviously) without database access. All 5 connections remains open all the time.
Any idea?
Here you are my data-sources.xml
<data-source
name="SIAEDS"
class="oracle.jdbc.pool.OracleConnectionCacheImpl"
location="jdbc/SIAECOREDS"
ejb-location="jdbc/SIAEDS"
xa-location="jdbc/xa/SIAEXADS"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="xxxx" password="xxxx"
url="jdbc:oracle:thin:@xxxx.yyy.zzz:1521:bddes"
min-connections="2"
max-connections="5"
inactivity-timeout="30"
/>

I'm using OAS9i 9.0.3. under linux.
I search my data-source with ejb-location.
Any more information?
Thanks in advance.

Similar Messages

Pooled Data Sources in OC4J

Hi all
i have jsut started working with OAS, and i have noticed it manages Data Sources i a very easy way through xml configuration files.
The question is, do i have to write a connection pool of my own, or the server just manages it, as long as it is provided with correct information about the database?
Any help will be appreciated
thank you

For the Developer Preview you can see documentation at
http://otn.oracle.com/tech/java/oc4j/documentation_preview.html
For the production documentation go to
http://otn.oracle.com/docs/tech/java/oc4j/content.html
The book that you want to look for related to data sources and pooling is the J2EE Services Guide and it is located at
http://otn.oracle.com/tech/java/oc4j/pdf/oc4j_j2ee_svcguide_r2.pdf
Thanks -- Jeff

Problem with new data-sources format

Hi, I m moving to Oracle IAS 10.1.3, so i m testing the application with the standalone version.
I use the datasource converter just like the manual say.
this is how datasources looks..
<?xml version = '1.0' encoding = 'UTF-8'?>
<data-sources>
<managed-data-source user="scott" password="tiger" login-timeout="-1" connection-pool-name="OracleDS_connectionPool" jndi-name="jdbc/OracleCoreDS" name="OracleDS_jdbc/OracleCoreDS"/>
<managed-data-source login-timeout="-1" connection-pool-name="OracleDS_connectionPool" jndi-name="jdbc/OracleCoreDS_non_tx" name="jdbc/OracleCoreDS_non_tx_jdbc/OracleCoreDS_non_tx"/>
<managed-data-source login-timeout="-1" connection-pool-name="OracleDS_connectionPool" jndi-name="jdbc/OracleDS" name="jdbc/OracleDS_jdbc/OracleDS"/>
<native-data-source user="user" password="pass" url="jdbc:oracle:thin:@70.101.0.200:1521:DEV" login-timeout="-1" data-source-class="oracle.jdbc.pool.OracleDataSource" jndi-name="jdbc/etgs" name="etgs"/>
<connection-pool name="etgs_connectionPool" connection-retry-interval="0" inactivity-timeout="30" max-connections="2147483647">
<connection-factory factory-class="oracle.jdbc.pool.OracleDataSource" user="etgs" password="etgs" url="jdbc:oracle:thin:@70.101.0.200:1521:DEV" login-timeout="-1"/>
</connection-pool>
<connection-pool name="OracleDS_connectionPool" connection-retry-interval="0" inactivity-timeout="30" max-connections="2147483647">
<connection-factory factory-class="oracle.jdbc.driver.OracleDriver" user="scott" password="tiger" url="jdbc:oracle:thin:@//localhost:1521/oracle.regress.rdbms.dev.us.oracle.com" login-timeout="-1"/>
</connection-pool>
</data-sources>
When I start de oc4j, I have the following problem:
C:\soft\oc4j_101300\bin>oc4j -start
Starting OC4J from C:\soft\oc4j_101300\j2ee\home ...
[2006-08-23 17:54:46,210] WARN org.hibernate.cfg.HbmBinder - Could not perform validation checks for component as the c
lass ar.com.tgs.spac.domain.solicitud.SolicitudProgramada was not found
[2006-08-23 17:54:49,882] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 17002, SQLState: null
[2006-08-23 17:54:49,882] ERROR org.hibernate.util.JDBCExceptionReporter - Excepci¾n de E/S: Socket is not connected
[2006-08-23 17:54:49,897] WARN org.hibernate.cfg.SettingsFactory - Could not obtain connection metadata
java.sql.SQLException: Excepci¾n de E/S: Socket is not connected
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:138)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:175)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:287)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:328)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:430)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:151)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:608)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:218)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:159)
at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionP
rovider.java:80)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:72)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:777
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:70
3)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowi
reCapableBeanFactory.java:1058)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:363)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueRes
olver.java:176)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:105)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAuto
wireCapableBeanFactory.java:1012)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCap
ableBeanFactory.java:823)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:345)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueRes
olver.java:176)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:105)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAuto
wireCapableBeanFactory.java:1012)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCap
ableBeanFactory.java:823)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:345)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueRes
olver.java:176)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:105)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedMap(BeanDefinitionValueRe
solver.java:225)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:117)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveConstructorArguments(Abst
ractAutowireCapableBeanFactory.java:713)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAuto
wireCapableBeanFactory.java:611)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:329)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueRes
olver.java:176)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:105)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAuto
wireCapableBeanFactory.java:1012)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCap
ableBeanFactory.java:823)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:345)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueRes
olver.java:176)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:105)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAuto
wireCapableBeanFactory.java:1012)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCap
ableBeanFactory.java:823)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:345)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueRes
olver.java:176)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionV
alueResolver.java:105)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAuto
wireCapableBeanFactory.java:1012)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCap
ableBeanFactory.java:823)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapab
leBeanFactory.java:345)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:147)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListable
BeanFactory.java:275)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:318)
at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableW
ebApplicationContext.java:134)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:230)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:156)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:48)
at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1015)
at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:649)
at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:428)
at com.evermind.server.Application.getHttpApplication(Application.java:512)
at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite
.java:1975)
at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:1894)
at com.evermind.server.http.HttpSite.initApplications(HttpSite.java:633)
at com.evermind.server.http.HttpSite.setConfig(HttpSite.java:302)
at com.evermind.server.http.HttpServer.setSites(HttpServer.java:273)
at com.evermind.server.http.HttpServer.setConfig(HttpServer.java:180)
at com.evermind.server.ApplicationServer.initializeHttp(ApplicationServer.java:2296)
at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:944)
at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:113)
at java.lang.Thread.run(Thread.java:595)
[2006-08-23 17:54:50,179] WARN net.sf.ehcache.config.Configurator - No configuration found. Configuring ehcache from eh
cache-failsafe.xml found in the classpath: code-source:/C:/soft/oc4j_101300/j2ee/home/applications/app-web/WEB-INF/lib/e
hcache-1.1.jar!ehcache-failsafe.xml
Any idea ?
really thanks

Another strange thing..
My ABAP colleague, debugged the program for me and point out:
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>         SELECT * FROM ddart INTO TABLE l_t_ddart
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The l_t_ddart table contains only 21 rows (without my new Data Class, which is visible under SE16!)! I checked under oracle sqlplus and SELECT * FROM SAP<SID>.ddart; returned 22 rows WITH my new Data Class!
I'm a little bit confused...

How to get a EAR package for deploying without local data-source setting in JDev9i?

Hi all,
I want to use pooled data-sources defined in OC4J's global configuration setting directory in JDEV_HOME\j2ee\home\config.
But when I packaged my application to an EAR file,it contains it's local data-sources.xml file in the package.Each time the server was restared,the local data-sources.xml file was overwritten by the originally setting in the EAR package,thus I cannot use the pooled settings.
So could let me know how to package a EAR file without containing it's local data-source setting,but use the global data-source setting?Or how to control the local data-source setting without changed after mannully defined.
Your reply is greatly appreciated!
Regards,
Robbin Woo

Mike,
You don't need a File to do what you want. Even if you could, it would be wrong to use a file.
It would be wrong, because the compiler might not by using a JavaFileManager that is actually backed by a filesystem. It could be backed by some form of repository such as a database, or it could be backed by a transient in memory file system ( An example of the latter is the [annotation processor test framework|https://hickory.dev.java.net/nonav/apidocs/index.html?net/java/dev/hickory/testing/package-summary.html] in hickory)
But probably of more interest to you, you don't need to because you can simply [get an InputStream|http://java.sun.com/javase/6/docs/api/javax/tools/FileObject.html#openInputStream()] from the FileObject returned from [filer.getResource(...)|http://java.sun.com/javase/6/docs/api/javax/annotation/processing/Filer.html#getResource(javax.tools.JavaFileManager.Location,%20java.lang.CharSequence,%20java.lang.CharSequence)] and read it.
You might also find the [Compiler Tree API|http://java.sun.com/javase/6/docs/jdk/api/javac/tree/index.html] useful. The Compiler Tree API is available to annotation processors running in Oracle's (Sun's) javac, but not in other compilers (possibly limiting portability).
With this API you can [convert |http://java.sun.com/javase/6/docs/jdk/api/javac/tree/com/sun/source/util/Trees.html#getPath(javax.lang.model.element.Element)] the Element representing the annotation to a Treepath then [get the leaf node|http://java.sun.com/javase/6/docs/jdk/api/javac/tree/com/sun/source/util/TreePath.html#getLeaf()] and from that tree [obtain its offsets|http://java.sun.com/javase/6/docs/jdk/api/javac/tree/com/sun/source/util/Trees.html#getSourcePositions()] within the source file.
Bruce

Dynamically switch phisical data source

Hi,
Is it possible to dynamically (during one session) change connection pool data source parameter in OBIEE 11g?
In my case there are 4 OLAP cubes with the same structure dedicated for different regions. I like to change data source standing behind report after user select region in dashboard prompt.

It's possible but there is important limitation in AWM when we speak about OLAP data sources. You can't duplicate dimension names within one database schema. Also, I didn't find a way to parametrize database schema. You can only dynamically switch database name so need separate database per OLAP cube.
1) Define separate database definitions in TNSNAMES.ORA file (in my case db name is country name).
2) In admin tool create variable and init block that will set default database name.
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Hi,
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I have checked that the data-source entires are fine(I've used the test-connection feature in AS, to check this).
Below is the content of my sessions.xml file; Can you please let me know if I am missing some entires in this file.Also sending my data-sources.xml file incase you want to have a look at it.
Sessions.xml
<?xml version="1.0" encoding="UTF-8"?>
<toplink-sessions version="10g release 2 (10.1.3.0.0DP4)" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<session xsi:type="database-session">
<name>oracle.epcis.common.model</name>
<event-listener-classes/>
<primary-project xsi:type="xml">EPCIS_OXM.xml</primary-project>
<login xsi:type="xml-login">
<password>5C4C6924B1B14E16</password>
</login>
</session>
<session xsi:type="server-session">
<name>oracle.epcis.common.model.orm</name>
<event-listener-classes/>
<logging xsi:type="toplink-log"/>
<primary-project xsi:type="xml">EPCIS_ORM.xml</primary-project>
<login>
<datasource>jdbc/epcisDS</datasource>
<uses-external-connection-pool>true</uses-external-connection-pool>
<uses-external-transaction-controller>true</uses-external-transaction-controller>
<user-name/>
</login>
<connection-pools>
<read-connection-pool>
<name>EPCIS Connection Pool</name>
</read-connection-pool>
<write-connection-pool>
<name>EPCIS Connection Pool</name>
</write-connection-pool>
</connection-pools>
<connection-policy/>
</session>
</toplink-sessions>
Data-sources.xml
<?xml version = '1.0' encoding = 'UTF-8'?>
<data-sources xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://xmlns.oracle.com/oracleas/schema/data-sources-10_1.xsd" schema-major-version="10" schema-minor-version="1">
<managed-data-source connection-pool-name="EPCIS Connection Pool" jndi-name="jdbc/epcisDS" name="epcisDS"/>
<connection-pool name="EPCIS Connection Pool">
<connection-factory factory-class="oracle.jdbc.pool.OracleDataSource" user="scott" password="tiger" url="jdbc:oracle:thin:@//localhost:1521/ORCL"/>
</connection-pool>
</data-sources>
Thanks in Advance,
Mahima

Thanks! That helped.
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project-orm.xml
<?xml version="1.0" encoding="UTF-8"?>
<toplink:object-persistence version="Oracle TopLink - 10g Release 3 (10.1.3.0.0) (Build 060118)" xmlns:opm="http://xmlns.oracle.com/ias/xsds/opm" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:toplink="http://xmlns.oracle.com/ias/xsds/toplink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<opm:name>EPCIS_ORM</opm:name>
</opm:class-mapping-descriptor>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>oracle.epcis.common.model.TransactionEvent</opm:class>
<opm:alias>SdmTransactionEvent</opm:alias>
<opm:primary-key>
<opm:field table="SDM_TRANSACTION_EVENT" name="TRANSACTION_EVENT_ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy"/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>action</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="ACTION" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>bizLocation</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="BIZ_LOCATION" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>bizStep</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="BIZ_STEP" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>bizTransactionListId</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="BIZ_TRANSACTION_LIST_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>disposition</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="DISPOSITION" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>eventTime</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="EVENT_TIME" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>rawXmlEventId</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="RAW_XML_EVENT_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>readpoint</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="READPOINT" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>transactionEventId</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT" name="TRANSACTION_EVENT_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="SDM_TRANSACTION_EVENT"/>
</toplink:tables>
</opm:class-mapping-descriptor>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>oracle.epcis.common.model.TransactionEventMap</opm:class>
<opm:alias>SdmTransactionEventMap</opm:alias>
<opm:primary-key>
<opm:field table="SDM_TRANSACTION_EVENT_MAP" name="CHILD_EPC_ID" xsi:type="opm:column"/>
<opm:field table="SDM_TRANSACTION_EVENT_MAP" name="TRANSACTION_EVENT_ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy"/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>childEpcId</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT_MAP" name="CHILD_EPC_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>transactionEventId</opm:attribute-name>
<opm:field table="SDM_TRANSACTION_EVENT_MAP" name="TRANSACTION_EVENT_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="SDM_TRANSACTION_EVENT_MAP"/>
</toplink:tables>
</opm:class-mapping-descriptor>
</opm:class-mapping-descriptors>
<toplink:login xsi:type="toplink:database-login">
<toplink:platform-class>oracle.toplink.platform.database.oracle.Oracle10Platform</toplink:platform-class>
<toplink:user-name>admin</toplink:user-name>
<toplink:password>77F9BCD65FABB4501B550455987A268F</toplink:password>
<toplink:sequencing>
<toplink:default-sequence xsi:type="toplink:native-sequence"/>
</toplink:sequencing>
<toplink:driver-class>oracle.jdbc.driver.OracleDriver</toplink:driver-class>
<toplink:connection-url>jdbc:oracle:thin:@localhost:1521:EPCIS</toplink:connection-url>
</toplink:login>
</toplink:object-persistence>
Thanks,
Mahima

Some doubts in using resource-ref,connection pool n Data-source

Hi all ,
I need little bit clarification in the following points.
1) Does the connection pool which is created can be displayed in JNDI Tree???
I am seeing only DataSOurce in the JNDI Tree Only.
2)In case of Bean Managed Persistance, in ejb-jar.xml,
I had given the following info.
<resource-ref>
         <res-ref-name>ramukkDataSource</res-ref-name>
         <res-type>javax.sql.DataSource</res-type>
         <res-auth>Container</res-auth>
     </resource-ref>Does the <res-ref-name> refers to Datasource Name??
In weblogic-ejb-jar.xml
<reference-descriptor>
       <resource-description>
          <res-ref-name>ramukkDataSource</res-ref-name>
          <jndi-name>ramukkpool</jndi-name>
       </resource-description>
     </reference-descriptor>Here <jndi-name> refers to connection pool as per weblogic bible book.
If so when i deployed my ejb into the server iam getting Datasource cant be found.
If i had given like the following,
In ejb-jar.xml
<resource-ref>
          <res-ref-name>jdbc/ramuJndi</res-ref-name>
          <res-type>javax.sql.DataSource</res-type>
          <res-auth>Container</res-auth>
     </resource-ref> In weblogic-ejb-jar.xml
     <reference-descriptor>
          <resource-description>
           <res-ref-name>jdbc/ramuJndi</res-ref-name>
           <jndi-name>jdbc/ramuJndi</jndi-name>
       </resource-description>
    </reference-descriptor>Then only my ejb code is successfully deploying doing some work which is as per xpectation.
Can any body tell why I have to give the same name for <res-ref-name> n <jndi-name>??
I am working on this problem from last one week. Still not found the solution.
Connection Pool Creation
GENERAL::
Name : ramukkpool
url : jdbc:mysql://localhost:3306/test
Driver Classname: com.mysql.jdbc.Driver
Properties :
user = root
Password = XXX
create
TARGETS::
i had shifted myServer from left side to right side n clicked >>Apply
(Techncially can we say this as deploying the connection pool into server ???????????
If not how to deploy the connection pool into server??)
I did not get any errors in the console.
Now i am creating a datasource
CONFIGURATION:
Name : ramukkDataSource
JNDIName: jdbc/ramuJndi(Does we have to follow this convention only?? i.e JNDIName should start with jdbc/ only)
PoolName: ramukkpool
create
TARGETS::
I had shifed myServer from left to right n >>Apply.
Now also i did not get any errors in the console.Thanx(in advance),
ramu

I have read the documentation.
I changed my class to oracle.jdbc.pool.OracleConnectionCacheImpl from
oracle.jdbc.pool.OracleConnectionPoolDataSource
I observed in the EM that the Open JDBC Connections and Total JDBC Connections are the same. When I used oracle.jdbc.pool.OracleConnectionPoolDataSource my Total JDBC Connections was increasing and Open JDBC Connections remains 0.
My question still remains unanswered, could some kindly help.
Q? I have defined a data source in JDeveloper using
oracle.jdbc.pool.OracleConnectionCacheImpl
In my java bean I am using the code pasted below to make a connection to database.
Can some one tell whether I am using the correct method of connection pooling mechanism or do I need to make some changes? This application uses JSP and used by lots of people which hits database very frequently.
Any help is highly appreciable.
Thanks in advance.
*******Code to make connection*********
private javax.naming.InitialContext context = null;
private javax.sql.DataSource jdbcURL = null;
private static final String url = "jdbc/ProdCoreDS";
public boolean openConnection()
try
    DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
context = new javax.naming.InitialContext();
jdbcURL = (javax.sql.DataSource)context.lookup(url);
con = jdbcURL.getConnection();
return true;
catch(Exception e)
       System.out.println("Error in the Connection "+e);
    e.printStackTrace();
             return false;
     }}

903/902/BC4J can't get data-sources.xml conn pooling to work in production; help

I have several BC4J ears deployed to a 903 instance of OC4J being configured as a standalone
instance. I've had this problem since I started deploying in development on 902. So it's
some basic problem that I've not mastered.
I can't get data-sources.xml managed connection pooling to actually pool conn's. I'm wanting
to declare my jndi jdbc source connection pool in j2ee/home/config/data-sources.xml.
Have all BC4J apps get conns from this JNDI JDBC pool. I've removed all data-sources.xml from my BC4J ears,
and published the jndi jdbc source in my oc4j common data-sources.xml. I've tested that this is
the place controlling the conn URL/login passwd by commenting it out of config/data-sources.xml
and my BC4J apps then throw exceptions, can't get conn.
I've set the oc4j startup cmd line with the BC4J property to enabled connection pooling:
-Djbo.doconnectionpooling=true
symptom
Connections are created and closed. Instead of being put back into the pool managed by oc4j,
what ever BC4J is doing or my data-sources.xml is doing, the connections are just being created and
closed.
I can verify this via (solaris) lsof and netstat, where I see my oc4j instance under test load
with only 1 or 2 conns to the db box, and the ephemeral port is tumbling, meaning a new socket is
being opened for each conn. ;( grrrrrrr
Does anyone have a clue as to why this is happening?
Thanks, curt
my data-sources.xml
<data-sources>
     <data-source
        class="com.evermind.sql.DriverManagerDataSource"
        connection-driver="oracle.jdbc.driver.OracleDriver"
        ejb-location="jdbc/DEVDS"
        location="jdbc/DEVCoreDS"
        name="DEVDS"
        password="j2train"
        pooled-location="jdbc/DEVPooledDS"
        url="jdbc:oracle:thin:@10.2.1.30:1521:GDOC"
        username="jscribe"
        xa-location="jdbc/xa/DEVXADS"
        inactivity-timeout="300"
        max-connections="50"
        min-connections="40"
    />
</data-sources>

I've run another test using local data-source.xml, that's packaged in the .ear. Still
pooling under BC4J doesn't work??
A piece of info is that the 903 oc4j release notes states that global conn pooling doesn't
work. Infering that the j2ee/home/config/data-sources.xml data sources aren't pooled or ??
I just tested so called local connection pooling, where I edited the data-sources.xml that
gets packaged in the ear, to include the min/max params and re-ran my test.
Still, the AM creates a new conn, it's to a new socket, and closes the conn when done. Causing
each conn to not be pooled, rather opened then closed to the DB box. As verified with lsof and
netstat, checking the ephemeral port # on the DB box side, always changes, meaning it's a
new socket and not an old pooled conn socket.
???? What the heck??
Surely if the AM conn check out / return code works properly, OC4J's pooling JDBC driver would
pool and not close the socket??
Has anywone gotten JDBC Datasource connections in BC4J to actually be pooled under OC4J??
Since I couldn't get this to work in my early 902 oc4j testing, and now can't get it to work
still under 903 OC4J, either it's my config or BC4J AM's code or OC4J?
Any thoughts on how to figure out what's not configed correctly or has a bug?
Thanks, curt

Creation of connection pools and data sources

Hi,
is there a possibility to create jdbc connection pools and data sources not manually, with a script or a mbean?
That would be helpfull, because at the moment every developper has to do that for himself (because of the individuals generated passwords).
Thanxs

The weblogic.management.configuration.JDBCDataSourceMBean
defines a non-transactional JDBC data source.
http://e-docs.bea.com/wls/docs90/javadocs_mhome/weblogic/management/configuration/JDBCDataSourceMBean.html
The JDBCConnectionPoolMBean defines a JDBC connection pool.
http://e-docs.bea.com/wls/docs90/javadocs_mhome/weblogic/management/configuration/JDBCConnectionPoolMBean.html

Connection Pooling in Data Source

Hello,
I have defined a data source in JDeveloper using
class :oracle.jdbc.pool.OracleConnectionPoolDataSource
In my java bean I am using the code pasted below to make a connection to database.
Can some one tell whether I am using the correct method of connection pooling mechanism or do I need to make some changes? This application uses JSP and used by lots of people which hits database very frequently.
Any help is highly appreciable.
Thanks in advance.
*******Code to make connection*********
private javax.naming.InitialContext context = null;
private javax.sql.DataSource jdbcURL = null;
private static final String url = "jdbc/ProdCoreDS";
public boolean openConnection()
try
    DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
context = new javax.naming.InitialContext();
jdbcURL = (javax.sql.DataSource)context.lookup(url);
con = jdbcURL.getConnection();
return true;
catch(Exception e)
       System.out.println("Error in the Connection "+e);
    e.printStackTrace();
             return false;
}

I have read the documentation.
I changed my class to oracle.jdbc.pool.OracleConnectionCacheImpl from
oracle.jdbc.pool.OracleConnectionPoolDataSource
I observed in the EM that the Open JDBC Connections and Total JDBC Connections are the same. When I used oracle.jdbc.pool.OracleConnectionPoolDataSource my Total JDBC Connections was increasing and Open JDBC Connections remains 0.
My question still remains unanswered, could some kindly help.
Q? I have defined a data source in JDeveloper using
oracle.jdbc.pool.OracleConnectionCacheImpl
In my java bean I am using the code pasted below to make a connection to database.
Can some one tell whether I am using the correct method of connection pooling mechanism or do I need to make some changes? This application uses JSP and used by lots of people which hits database very frequently.
Any help is highly appreciable.
Thanks in advance.
*******Code to make connection*********
private javax.naming.InitialContext context = null;
private javax.sql.DataSource jdbcURL = null;
private static final String url = "jdbc/ProdCoreDS";
public boolean openConnection()
try
    DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
context = new javax.naming.InitialContext();
jdbcURL = (javax.sql.DataSource)context.lookup(url);
con = jdbcURL.getConnection();
return true;
catch(Exception e)
       System.out.println("Error in the Connection "+e);
    e.printStackTrace();
             return false;
     }}

903/902/BC4J can't get OC4J data-sources.xml conn pooling to work in production: help

[cross posted to the j2ee forum]
I have several BC4J ears deployed to a 903 instance of OC4J being configured as a standalone
instance. I've had this problem since I started deploying in development on 902. So it's
some basic problem that I've not mastered.
I can't get data-sources.xml managed connection pooling to actually pool conn's. I'm wanting
to declare my jndi jdbc source connection pool in j2ee/home/config/data-sources.xml and
have all BC4J apps get conns from this JNDI JDBC pool. I've removed all data-sources.xml from
my BC4J ears, and published the jndi jdbc source in my oc4j common data-sources.xml.
I've tested that this is the place controlling the conn URL/login passwd by commenting it
out of config/data-sources.xml and my BC4J apps then throw exceptions, can't get conn.
I've set the oc4j startup cmd line with the BC4J property to enabled connection pooling:
-Djbo.doconnectionpooling=true
symptom
Connections are created and closed. Instead of being put back into the pool managed by oc4j,
what ever BC4J is doing or my data-sources.xml is doing, the connections are just being created and
closed.
I can verify this via (solaris) lsof and netstat, where I see my oc4j instance under test load
with only 1 or 2 conns to the db box, and the ephemeral port is tumbling, meaning a new socket is
being opened for each conn. ;( grrrrrrr
Does anyone have a clue as to why this is happening?
Thanks, curt
my data-sources.xml
<data-sources>
     <data-source
        class="com.evermind.sql.DriverManagerDataSource"
        connection-driver="oracle.jdbc.driver.OracleDriver"
        ejb-location="jdbc/DEVDS"
        location="jdbc/DEVCoreDS"
        name="DEVDS"
        password="j2train"
        pooled-location="jdbc/DEVPooledDS"
        url="jdbc:oracle:thin:@10.2.1.30:1521:GDOC"
        username="jscribe"
        xa-location="jdbc/xa/DEVXADS"
        inactivity-timeout="300"
        max-connections="50"
        min-connections="40"
    />
</data-sources>

Thanks Leif,
Yes, set it to the location jndi path.
A piece of info is that the 903 oc4j release notes states that global conn pooling doesn't
work. Infering that the j2ee/home/config/data-sources.xml data sources aren't pooled or ??
I just tested so called local connection pooling, where I edited the data-sources.xml that
gets packaged in the ear, to include the min/max params and re-ran my test.
Still, the AM creates a new conn, it's to a new socket, and closes the conn when done. Causing
each conn to not be pooled, rather opened then closed to the DB box. As verified with lsof and
netstat, checking the ephemeral port # on the DB box side, always changes, meaning it's a
new socket and not an old pooled conn socket.
???? What the heck??
Surely if the AM conn check out / return code works properly, OC4J's pooling JDBC driver would
pool and not close the socket??
Has anywone gotten JDBC Datasource connections in BC4J to actually be pooled under OC4J??
Since I couldn't get this to work in my early 902 oc4j testing, and now can't get it to work
still under 903 OC4J, either it's my config or BC4J AM's code or OC4J?
Any thoughts on how to figure out what's not configed correctly or has a bug?
Thanks, curt

Mapping Data Source and Connection Pools

Is it possible to Map a Data Dource with Multiple connection pools in Weblogic ? If Yes how do we do that ?

Which version of WLS are you using. With version 10.0 you could use a multi data source.
http://e-docs.bea.com/wls/docs100/jdbc_admin/jdbc_multidatasources.html

Data source for application using both pooled and non pooled connections

Hi guys.
I am integrating Oracle's connection pooling into an existing application that had formerly used dbConnectionBroker. It looks like this task should be quite straightforward. However, for consistency, I would also like to replace other Connection logic within the application to use Oracle classes. This will involve using OracleDataSource to obtain a Connection object. ( without pooling ).
So in this case, the application will use both pooled and non pooled Oracle connections. They will be connecting to the same database. The question I have is in regard to the use of data-sources.xml.
Are there any special considerations for the required attribute values within data-sources.xml under this scenario ?
Help will be greatly appreciated.
Regards.
Steve.

Hi Steve -
It should be feasible for you to define a single datasource using multiple location entries to indicate what sort of pooling behaviour you wish to use.
If you lookup and use the "location" attribute, you will receive a javax.sql.DataSource object which will not provide connection pooling.
If you lookup and use the "ejb-location" attribute you will receive a DataSource object that will support connection pooling operations.
Note that this is using the emulated datasource approach, and transaction support is limited to a single resource (one database) for these datasources - you won't get 2PC support for transactions.
If you need a transaction to span two separate resources (ie two databases in same tx) then you will need to use the non-emulated datasource approach.
There is a chapter in the J2EE Services Guide which describes the datasource model we have with OC4J. This might provide you with some more useful information. See Chapter 11 - http://otn.oracle.com/docs/products/ias/doc_library/903doc_otn/generic.903/a97690/ds3.htm#1004903
cheers
-steve-

Changing Data source in connection pools

hi all,
When the primary data source goes down or is unresponsive, we have to often point our repository connection pool to a backup data source. As this is production environment, we would like to do this without bringing the services down.
I usually make sure that there are no requests running by going to Manage Sessions and clicking on 'close all cursors' and 'Cancel all running requests'. Are there any other implications of not restarting the services while changing the data source connections? Do the connection pools are kept open to the old data source?
We use Oracle 10G as a database, but I have also done this with DB2 database.
Thanks in Advance

Turribeach said it correct.
But if you are handling the failover manually for now until you figure out the RAC setup, it is better you kill all the user session through the admin tool . AdminTool -> Manage -> Sessions
Otherwise the users already connected will keep getting errors until they choose to relogin or choose to "Reload Server Metadata" in the answers, which they would probably not even know. So it is better to kill their session forcing them to relogin. But the transition will not be seamless if they in the process of firing a query.

How to define pool size of a data source

In OC4J,How do I configure the behaviour of connection pools such as maxStatements, initialPoolSize,minPoolSize,maxPoolSize,maxIdleTime,propertyCycle which is defined in the JDBC specification?

<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by wang haitao ([email protected]):
Thanks.From the example,I have known how to configure the minPoolSize and MaxPoolSize.
But,where can I find a example include all the datasource properties?
When I configure a property, I want to know the XML tag for the property.
IS this what you are looking for: http://www.orionserver.com/docs/data-sources.xml.html
<data-sources>
This file contains the configuration for the installed DataSources of an application-server.
<data-source ...>
An installed DataSource. The installed DataSources are bound to the JNDI-paths specified by the location attribute.
class - The classname of the DataSource. The core classes are com.evermind.sql.DriverManagerDataSource, com.evermind.sql.DriverManagerXADataSource, com.evermind.sql.DriverManagerConnectionPoolDataSource, com.evermind.sql.OrionPooledDataSource, com.evermind.sql.OrionCMTDataSource. There is also a special name; com.evermind.sql.AliasDataSource, which copies the data-source at the source-location to the specified location. See the API docs for further info on the other types.
connection-driver - The JDBC-driver classname for this DataSource, needed by some DataSources that deal with java.sql.Connections.
connection-retry-interval - How long to wait before retrying in seconds if a connection attempt fails. The default is 1.
ejb-location - The JNDI-path to bind an EJB-aware and pooled version of this DataSource to. (only applies to ConnectionDataSources). This version of the datasoruce will automatically take part in container-managed transactions and is the type of source that should be used from within EJBs and similar (if you use a "clean" datasource you loose the container-managed transactions support).
inactivity-timeout - Time to cache unused connections before closing them (seconds).
location - The JNDI-path to bind this DataSource to.
max-connect-attempts - How many times to retry making a Connection. This is useful when the network isnt stable or the environment is unstable for any other reason that will make connection attempts fail at times. The default is 3.
max-connections - The maximum number of open connections for pooling DataSources.
min-connections - The minimum number of open connections for pooling DataSources. The default is zero.
name - The displayed name of the DataSource.
password - The password to user when logging in using the DataSource, optional.
pooled-location - The JNDI-path to bind a pooled version of this DataSource to. (only applies to ConnectionDataSources).
schema - The relative/absolute path to a database-schema for this database connection.
source-location - The underlying DataSource of this specialized DataSource.
url - The JDBC URL for this DataSource, needed by some DataSources that deal with java.sql.Connections.
username - The username to log in as when using the DataSource, optional.
wait-timeout - The number of seconds to wait for a free connection if the pool is used up (ie reached max-connections used). The default is 60.
xa-location - The JNDI-path to bind a transactional version of this DataSource to. (only applies to ConnectionDataSources). XA-datasources are automatically pooled internally.
xa-source-location - The underlying XADataSource of this specialized DataSource (used by OrionCMTDataSource).
<description>The description</description>
A short description.
<property name="theName" value="theValue" />
A property to set when using a custom/3rd-party DataSource.
name - The name of the property.
value - The property value.
<HR></BLOCKQUOTE>
null

Pooled data sources

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