Re: state-of-the art attribute initialization in persistent pojos?
I thought the no-arg constructor had to be public or protected - see
2.1 Requirements on the Entity Class section where this is mentioned.
If that's not the case so much better, but I have been adding a
protected constructor in my entities.
Cheers,
Thomas
Craig L Russell wrote:
Hi Hans,
On Apr 12, 2007, at 8:43 AM, Hans J. Prueller wrote:
hi,
as you know I am switching from EJB2.1 CMP to JPA (OpenJPA). I'd like
to know the preferred way to perform attribute initialisation of
newly created entity instances, e.g. we initialized our EJB2.1 CMP
entity beans with
ejbCreate(String cid, Integer someOtherValue)
{
setabc();
setdef();
}
//and ejbPostCreate optionally
as far as I know, the JPA spec requires a no-arg constructor - so
when providing a constructor with the same args that we have used in
ejbCreate before, we cannot ensure that some developer calls the
no-arg constructor by default.
The no-arg constructor can be private. The reason it's required is so
the implementation doesn't have to guess what the right values are for
final variables. But there's no requirement to make this constructor
available to your applications.
is there any other-more elegant way to force new entity instance
initialization?
There's no requirement for an ejbCreate and a separate ejbPostCreate
for relationships. So you are really free to do whatever you like for
the application contract. Have as many constructors as you like and
put whatever initialization into them.
Just don't initialize the values of generated fields...
Craig
regards,
HANS
===
virtually hanzz...
http://hanzz.zapto.org http://hanzz.zapto.org (personal)
http://www.cse.dmu.ac.uk/~hansp http://www.cse.dmu.ac.uk/~hansp
(research)
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:[EMAIL PROTECTED]
P.S. A good JDO? O, Gasp!
[jira] Commented: (OPENJPA-40) Testing OpenJPA and Spring integration fails
[ http://issues.apache.org/jira/browse/OPENJPA-40?page=comments#action_12433878 ] Thomas Risberg commented on OPENJPA-40: --- I made the changes you suggested and I can now run the test relying only on annotations. As soon as I involve an orm.xml in combination with the annotations I see errors - see OPENJPA-42 for specific error I get. Once those errors are resoved I'll come back to this issue to retest it. Thanks. Testing OpenJPA and Spring integration fails Key: OPENJPA-40 URL: http://issues.apache.org/jira/browse/OPENJPA-40 Project: OpenJPA Issue Type: Test Environment: [java] os.name: Mac OS X [java] os.version: 10.4.7 [java] os.arch: ppc [java] java.version: 1.5.0_06 [java] java.vendor: Apple Computer, Inc. OpenJPA built from SVN (revision 440460) Reporter: Thomas Risberg Assigned To: Marc Prud'hommeaux Attachments: OpenJpaLoadTimeWeaver.java, testOpenJpa.zip I have attached a test case including jar files and a build script. src/repository-config.xml contains the Spring configuration and switching to the TopLink vendor adapter does not show any issues - the test runs fine. Using the current OpenJPA vendor adapter (Spring sandbox source is included in src directory) causes this failure: First the version info: samoa:~/Projects/testOpenJpa trisberg$ ant openjpa-version Buildfile: build.xml openjpa-version: [java] OpenJPA 0.9.0-incubating-SNAPSHOT [java] version id: 0.9.0-incubating-SNAPSHOT-r0 [java] revision: 0 [java] os.name: Mac OS X [java] os.version: 10.4.7 [java] os.arch: ppc [java] java.version: 1.5.0_06 [java] java.vendor: Apple Computer, Inc. [java] java.class.path: [java] /Users/trisberg/Projects/testOpenJpa/lib/commons-collections-3.2.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/commons-lang-2.1.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/commons-logging-1.0.4.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/commons-pool-1.3.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/geronimo-j2ee-connector_1.5_spec-1.0.1.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/geronimo-jta_1.0.1B_spec-1.0.1.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/hsqldb.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-jdbc-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-jdbc-5-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-kernel-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-kernel-5-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-lib-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-persistence-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-persistence-jdbc-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/openjpa-xmlstore-0.9.0-incubating-SNAPSHOT.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/persistence-api-1.0.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/serp-1.11.0.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/spring-jpa.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/spring-sandbox.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/spring.jar [java] /Users/trisberg/Projects/testOpenJpa/lib/toplink-essentials.jar [java] /Users/trisberg/Projects/testOpenJpa/classes [java] /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/.compatibility/14compatibility.jar [java] user.dir: /Users/trisberg/Projects/testOpenJpa BUILD SUCCESSFUL Total time: 3 seconds And now the runtime error: samoa:~/Projects/testOpenJpa trisberg$ ant run-test Buildfile: build.xml run-test: [java] TestApp! [java] Sep 6, 2006 1:11:02 PM org.springframework.core.CollectionFactory clinit [java] INFO: JDK 1.4+ collections available [java] Sep 6, 2006 1:11:02 PM org.springframework.core.CollectionFactory clinit [java] INFO: Commons Collections 3.x available [java] Sep 6, 2006 1:11:02 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions [java] INFO: Loading XML bean definitions from class path resource [repository-config.xml] [java] Sep 6, 2006 1:11:03 PM org.springframework.context.support.AbstractRefreshableApplicationContext refreshBeanFactory [java] INFO: Bean factory for application context
[jira] Updated: (OPENJPA-42) Simple orm.xml file causes exception (NPE)
[ http://issues.apache.org/jira/browse/OPENJPA-42?page=all ]
Thomas Risberg updated OPENJPA-42:
--
Attachment: OPENJPA-42.zip
Marc,
I saw your fix for the circular reference and I don't see the error message
right now after checking out the latest (now at rev. 442412). I'm getting an
error building, but the jars seem to be created anyway. This is the last part
of the build messages:
[INFO] [jar:jar]
[INFO] Building jar:
/Users/trisberg/Projects/OpenJPA/openjpa-all/target/openjpa-all-0.9.0-incubating-SNAPSHOT.jar
[INFO]
[INFO] Building OpenJPA Distribution
[INFO]task-segment: [clean, package]
[INFO]
[INFO]
[ERROR] BUILD ERROR
[INFO]
[INFO] 'attached' was specified in an execution, but not found in the plugin
[INFO]
[INFO] For more information, run Maven with the -e switch
[INFO]
[INFO] Total time: 2 minutes 5 seconds
[INFO] Finished at: Mon Sep 11 21:57:00 EDT 2006
[INFO] Final Memory: 16M/59M
[INFO]
Anyway, I still get an exception executing my test - see attached zip file. Is
this related to OPENJPA-44 since I do use the metadata-complete attribute?
Exception in thread main 4|true|0.9.0-incubating-SNAPSHOT
org.apache.openjpa.persistence.ArgumentException: Could not locate metadata for
the class using alias Manager. Registered alias mappings: {Manager=null}
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:362)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getClassMetaData(JPQLExpressionBuilder.java:166)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.resolveClassMetaData(JPQLExpressionBuilder.java:144)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:213)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:183)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateType(JPQLExpressionBuilder.java:176)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.access$500(JPQLExpressionBuilder.java:63)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder$ParsedJPQL.populate(JPQLExpressionBuilder.java:1666)
at
org.apache.openjpa.kernel.jpql.JPQLParser.populate(JPQLParser.java:52)
at
org.apache.openjpa.kernel.ExpressionStoreQuery.populateFromCompilation(ExpressionStoreQuery.java:145)
at
org.apache.openjpa.kernel.QueryImpl.newCompilation(QueryImpl.java:599)
at
org.apache.openjpa.kernel.QueryImpl.compileForCompilation(QueryImpl.java:581)
at
org.apache.openjpa.kernel.QueryImpl.compileForExecutor(QueryImpl.java:608)
at org.apache.openjpa.kernel.QueryImpl.getOperation(QueryImpl.java:1421)
at
org.apache.openjpa.kernel.DelegatingQuery.getOperation(DelegatingQuery.java:120)
at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:205)
at
org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:254)
at springdeveloper.MyTest.runQuery(MyTest.java:13)
at springdeveloper.TestApp.run(TestApp.java:53)
at springdeveloper.TestApp.main(TestApp.java:22)
Simple orm.xml file causes exception (NPE)
--
Key: OPENJPA-42
URL: http://issues.apache.org/jira/browse/OPENJPA-42
Project: OpenJPA
Issue Type: Bug
Environment: Mac OS X
Java 5 SE
Resource Local
OpenJPA build from SVN rev. 441247
Reporter: Thomas Risberg
Attachments: OPENJPA-42.zip, plainJpa.zip
This simple orm.xml file causes a NPE -
?xml version=1.0 encoding=UTF-8?
entity-mappings xmlns=http://java.sun.com/xml/ns/persistence/orm;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd;
version=1.0
packagespringdeveloper.domain/package
entity class=Client metadata-complete=false access=FIELD/entity
entity class=Manager metadata-complete=false access=FIELD
attribute-override name=description
column name=DESCR length=2000/
/attribute-override
/entity
/entity-mappings
I have attached a test case - plainJpa.zip
Same code runs fine with the RI.
This is the output from my run:
/System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home/bin/java
[jira] Created: (OPENJPA-42) Simple orm.xml file causes exception (NPE)
Simple orm.xml file causes exception (NPE) -- Key: OPENJPA-42 URL: http://issues.apache.org/jira/browse/OPENJPA-42 Project: OpenJPA Issue Type: Bug Environment: Mac OS X Java 5 SE Resource Local OpenJPA build from SVN rev. 441247 Reporter: Thomas Risberg Attachments: plainJpa.zip This simple orm.xml file causes a NPE - ?xml version=1.0 encoding=UTF-8? entity-mappings xmlns=http://java.sun.com/xml/ns/persistence/orm; xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xsi:schemaLocation=http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd; version=1.0 packagespringdeveloper.domain/package entity class=Client metadata-complete=false access=FIELD/entity entity class=Manager metadata-complete=false access=FIELD attribute-override name=description column name=DESCR length=2000/ /attribute-override /entity /entity-mappings I have attached a test case - plainJpa.zip Same code runs fine with the RI. This is the output from my run: /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home/bin/java -Dfile.encoding=MacRoman -classpath /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/deploy.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/dt.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jce.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/plugin.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/sa-jdi.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/charsets.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/classes.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jconsole.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jsse.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/laf.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/ui.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/ext/apple_provider.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/ext/dnsns.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/ext/localedata.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/ext/sunjce_provider.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/ext/sunpkcs11.jar:/Users/trisberg/Projects/plainJpa/classes:/Users/trisberg/Projects/plainJpa/lib/openjpa-jdbc-0.9.0-incubating-SNAPSHOT.jar:/Users/trisberg/Projects/plainJpa/lib/openjpa-persistence-0.9.0-incubating-SNAPSHOT.jar:/Users/trisberg/Projects/plainJpa/lib/openjpa-lib-0.9.0-incubating-SNAPSHOT.jar:/Users/trisberg/Projects/plainJpa/lib/openjpa-kernel-5-0.9.0-incubating-SNAPSHOT.jar:/Users/trisberg/Projects/plainJpa/lib/commons-collections-3.2.jar:/Users/trisberg/Projects/plainJpa/lib/geronimo-jta_1.0.1B_spec-1.0.1.jar:/Users/trisberg/Projects/plainJpa/lib/geronimo-j2ee-connector_1.5_spec-1.0.1.jar:/Users/trisberg/Projects/plainJpa/lib/commons-pool-1.3.jar:/Users/trisberg/Projects/plainJpa/lib/serp-1.11.0.jar:/Users/trisberg/Projects/plainJpa/lib/hsqldb.jar:/Users/trisberg/Projects/plainJpa/lib/persistence-api-1.0.jar:/Users/trisberg/Projects/plainJpa/lib/commons-logging-1.0.4.jar:/Users/trisberg/Projects/plainJpa/lib/commons-dbcp-1.2.1.jar:/Users/trisberg/Projects/plainJpa/lib/openjpa-persistence-jdbc-0.9.0-incubating-SNAPSHOT.jar:/Users/trisberg/Projects/plainJpa/lib/commons-lang-2.1.jar:/Users/trisberg/Projects/plainJpa/lib/openjpa-kernel-0.9.0-incubating-SNAPSHOT.jar:/Users/trisberg/Projects/plainJpa/lib/openjpa-jdbc-5-0.9.0-incubating-SNAPSHOT.jar springdeveloper.TestApp OPenJPAVersion: OpenJPA 0.9.0-incubating-SNAPSHOT version id: 0.9.0-incubating-SNAPSHOT-r0 revision: 0 os.name: Mac OS X os.version: 10.4.7 os.arch: ppc java.version: 1.5.0_06 java.vendor: Apple Computer, Inc. java.class.path: /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/deploy.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/dt.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jce.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/plugin.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/sa-jdi.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/charsets.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/classes.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jconsole.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jsse.jar /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/laf.jar /System/Library/Frameworks/JavaVM.framework/Versions
Re: bootstrapping OpenJPA with Spring
Marc, The integration code is now in the sandbox. Haven't tried this yet, but Costin indicated that he ran into a few issues - http://forum.springframework.org/showpost.php?p=75333postcount=7 Thomas Marc Logemann wrote: Hi, sounds good. At least its no problem to get a jar as far as i can see. Compiling/Building works with some expected maven hiccups. -- regards Marc Logemann [blog] http://www.logemann.org [busn] http://www.logentis.de Am 28.08.2006 um 19:15 schrieb Thomas Risberg: Marc, It's coming - see this forum post http://forum.springframework.org/showthread.php?p=74659#post74659 Thomas Risberg [EMAIL PROTECTED] wrote: Hi, i wonder why there is no OpenJPA-JpaVendorAdapter in the Spring 2.0 distro. As you can see at http://static.springframework.org/spring/docs/2.0.x/api/org/springframework/orm/jpa/vendor/package-summary.html
