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Re: [eclipselink-users] How to create EclipseLink Sessions, ORM.xml files in J2SE environment
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Download the code and look at it, it's just my own class I made to
expose and contain an EntityManager, the EntityManager is obtained
from the EntityManagerFactory.
./tch
On Mon, Jan 19, 2009 at 10:47 PM, krisUSA123 <krisusa123@xxxxxxxxx> wrote:
>
> May I know what class is Model in your example. I am trying to find
> documentation for getEntityManager method and dont see any classes that has
> this method.
>
> Appreciate your help.
>
> Thanks
> Kris
>
>
> tch wrote:
>>
>> You don't have to worry about using Sessions, all of that happens
>> beind the scenes. The same with UnitOfWork, now you can obtain these
>> things and use them from an EntityManager by casting the EntityManager
>> to the EclipseLink EntityManagerImpl, I do that to take advantage of
>> the hasChanges method like this:
>>
>> public boolean isDirty() {
>>
>> UnitOfWork uow = ((EntityManagerImpl)
>> model.getEntityManager).getUnitOfWork();
>> return uow.hasChanges();
>> }
>>
>>
>> ./tch
>>
>>
>>
>> On Sun, Jan 18, 2009 at 1:20 AM, krisusa123 <krisusa123@xxxxxxxxx> wrote:
>>> Hi Tim
>>> Thanks for taking the time for replying to my query. I still did not get
>>> from the links you pointed me out of how to create sessions. I see you
>>> are
>>> using entitymanagerfactory and entitymanager. I dont see creatin any
>>> sessions and unit of works in these examples.
>>>
>>> Can you help me with that?
>>>
>>> Thanks
>>> Kris
>>>
>>> f u cn rd ths, u cn gt a gd jb n cmptr prgrmmng
>>>
>>> --- On Sat, 1/17/09, Tim Hollosy <hollosyt@xxxxxxxxx> wrote:
>>>
>>> From: Tim Hollosy <hollosyt@xxxxxxxxx>
>>> Subject: Re: [eclipselink-users] How to create EclipseLink Sessions,
>>> ORM.xml
>>> files in J2SE environment
>>> To: "EclipseLink User Discussions" <eclipselink-users@xxxxxxxxxxx>
>>> Date: Saturday, January 17, 2009, 6:54 PM
>>>
>>> Don't do it all alone!
>>>
>>> Look here:
>>> http://www.weheartcode.com/2008/08/27/eclipselink-in-j2se-rcp-applications/
>>>
>>> and
>>>
>>> http://wiki.eclipse.org/EclipseLink/Examples/OSGi
>>>
>>> ./tch
>>>
>>>
>>>
>>> On Sat, Jan 17, 2009 at 5:59 PM, krisUSA123 <krisusa123@xxxxxxxxx> wrote:
>>>>
>>>> Hello
>>>> I am a newbie to EclipseLink and so far was able to write an
>>> persistence.xml
>>>> file where I can do CRUD operations against my DB.
>>>>
>>>> How do I create a Session in a pure J2SE environment so that I can use
>>> "Unit
>>>> Of Work" concepts working. Do I need a Database Session created or
>>> just a
>>>> regular ServerSession. Also, any links, examples that you can throw at
>>>> me
>>>> would be very helpful.
>>>>
>>>> Any examples of ORM.xml files is also very helpful.
>>>>
>>>> Here is what my persistence file looks like:
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <persistence version="1.0"
>>> xmlns="http://java.sun.com/xml/ns/persistence";
>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>>>> xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
>>>> http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd";>
>>>> <persistence-unit name="Prototype"
>>> transaction-type="RESOURCE_LOCAL">
>>>> <provider>
>>>> org.eclipse.persistence.jpa.PersistenceProvider
>>>> </provider>
>>>> <class>TestEtl</class>
>>>> <properties>
>>>> <!-- Logging defaults set here -->
>>>> <property
>>> name="eclipselink.logging.level" value="FINE"/>
>>>> <property
>>> name="eclipselink.logging.thread" value="false"/>
>>>> <property
>>> name="eclipselink.logging.timestamp" value="false"/>
>>>> <property
>>> name="eclipselink.logging.exceptions" value="false"/>
>>>>
>>>> <!-- Oracle Connections -->
>>>>
>>>> <property name="eclipselink.jdbc.driver"
>>>> value="oracle.jdbc.driver.OracleDriver" /><property
>>>> name="eclipselink.logging.session" value="false"/>
>>>> <property name="eclipselink.jdbc.url"
>>>> value="jdbc:oracle:thin:@//xx"/>
>>>> <property name="eclipselink.jdbc.password"
>>> value="xx"/>
>>>> <property name="eclipselink.jdbc.user"
>>> value="xx"/>
>>>> <property
>>> name="eclipselink.jdbc.read-connections.min"
>>>> value="1"/>
>>>> <property
>>> name="eclipselink.jdbc.write-connections.min" value="1"/>
>>>> <property
>>> name="eclipselink.target-database" value="Oracle"/>
>>>> <property
>>> name="eclipselink.jdbc.batch-writing" value="JDBC" />
>>>> </properties>
>>>> </persistence-unit>
>>>> </persistence>
>>>>
>>>> As Always,
>>>> Thanks in Advance!
>>>>
>>>> Kris
>>>>
>>>>
>>>> --
>>>> View this message in context:
>>> http://www.nabble.com/How-to-create-EclipseLink-Sessions%2C-ORM.xml-files-in-J2SE-environment-tp21490017p21490017.html
>>>> Sent from the EclipseLink - Users mailing list archive at Nabble.com.
>>>>
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>
> --
> View this message in context: http://www.nabble.com/How-to-create-EclipseLink-Sessions%2C-ORM.xml-files-in-J2SE-environment-tp21490017p21556551.html
> Sent from the EclipseLink - Users mailing list archive at Nabble.com.
>
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