Thanks José, see my reply to Rick - it has my persistence.xml and orm.xml attached...
-Chris On Mon, Nov 19, 2012 at 10:57 AM, José Luis Cetina <maxtorz...@gmail.com> wrote: > I'm doing build-time enhancement. > > Send your persistence.xml > El 19/11/2012 09:50, "Chris Wolf" <cwolf.a...@gmail.com> escribió: > >> I choose property access over field access due to the caveats listed >> at the bottom of this page: >> >> >> http://openjpa.apache.org/builds/1.0.4/apache-openjpa-1.0.4/docs/manual/ref_guide_pc_enhance.html >> >> ...not that is matters, really, since my entities *are* enhanced (just >> not java.util.ArrayList). >> >> I would be curious to see your persistence.xml and orm.xml and if you >> are doing runtime >> enhancement or build-time enhancement.... >> >> Thanks, >> >> -Chris >> >> On Mon, Nov 19, 2012 at 10:37 AM, Boblitz John >> <john.bobl...@bertschi.com> wrote: >> > Actually, mine works just fine! >> > >> > I choose to annotate the attributes instead of the methodes, but here is >> an example: >> > >> > @Entity >> > @Table(name = "UserGroup") >> > public class UserGroup extends BaseEntity { >> > >> > [snip] >> > >> > @ManyToMany(mappedBy = "userGroups") >> > private Set<Users> users; >> > >> > } >> > >> > @Entity >> > @Table(name = "Users") >> > public class Users extends BaseEntity { >> > >> > [snip] >> > >> > @ManyToMany >> > @JoinTable(name = "UserGroupMember", joinColumns = >> @JoinColumn(name = "userid"), inverseJoinColumns = @JoinColumn(name = >> "groupid")) >> > private Set<UserGroup> userGroups; >> > >> > } >> > >> > >> > >> > >> >> -----Ursprüngliche Nachricht----- >> >> Von: Chris Wolf [mailto:cwolf.a...@gmail.com] >> >> Gesendet: Montag, 19. November 2012 16:29 >> >> An: users@openjpa.apache.org >> >> Betreff: Re: cannot persist m2m data, getting >> >> "ArgumentException: Attempt to cast instance xxx >> >> [java.util.HashSet]" to PersistenceCapable failed. Ensure >> >> that it has been enhanced." >> >> >> >> José, >> >> >> >> The plugin doc says you can have a comma-delimited list of >> >> classes, however, since enhancement on collection classes >> >> doesn't seem to work anyway - per your suggestion, I removed >> >> "java.util.ArrayList" and re-ran the "mvn openjpa:enhance" command. >> >> >> >> The result, as ever, is still: >> >> >> >> 771 openjpa INFO [main] openjpa.Enhance - Creating subclass and >> >> redefining methods for >> >> "[class java.util.ArrayList]". This means that your >> >> application will be less efficient than it would if you ran >> >> the OpenJPA enhancer. >> >> Exception in thread "main" <openjpa-2.2.0-r422266:1244990 >> >> fatal user error> >> >> org.apache.openjpa.persistence.ArgumentException: No >> >> registered metadata for type "class java.util.ArrayList". >> >> This can happen if this class has not been annotated as a >> >> persistent entity or specified in the persistence unit (ex: >> >> in the orm.xml). >> >> >> >> I wonder if anyone knows of a working example of many-to-many >> >> ORM using OpenJPA? >> >> >> >> Thanks, >> >> >> >> -Chris >> >> >> >> >> >> On Mon, Nov 19, 2012 at 10:19 AM, José Luis Cetina >> >> <maxtorz...@gmail.com> wrote: >> >> > And I think you don't have to set arraylist class or any >> >> java "native" >> >> > class as enhance class. Only your entities have to be enhancement. >> >> > El 19/11/2012 09:12, "José Luis Cetina" >> >> <maxtorz...@gmail.com> escribió: >> >> > >> >> >> I'm not sure if the include tag accept more than 1 class. >> >> >> >> >> >> You have: >> >> >> <includes>**/entities/*.class,java.util.ArrayList.class</includes> >> >> >> >> >> >> Try to remove java.util.ArrayList. >> >> >> El 19/11/2012 09:05, "Chris Wolf" <cwolf.a...@gmail.com> escribió: >> >> >> >> >> >>> José, >> >> >>> >> >> >>> Thanks - I sent the two entities to John (this list). >> >> The pom.xml >> >> >>> is attached... >> >> >>> >> >> >>> -Chris >> >> >>> >> >> >>> >> >> >>> >> >> >>> On Mon, Nov 19, 2012 at 9:54 AM, José Luis Cetina >> >> >>> <maxtorz...@gmail.com> >> >> >>> wrote: >> >> >>> > Please send your 2 entities and your pom configuration whit the >> >> >>> > enhance plugin. >> >> >>> > El 19/11/2012 08:46, "Chris Wolf" >> >> <cwolf.a...@gmail.com> escribió: >> >> >>> > >> >> >>> >> José, >> >> >>> >> >> >> >>> >> I tried List/ArrayList - same error. Thanks.... >> >> >>> >> >> >> >>> >> -Chris >> >> >>> >> >> >> >>> >> On Sun, Nov 18, 2012 at 9:47 PM, José Luis Cetina < >> >> >>> maxtorz...@gmail.com> >> >> >>> >> wrote: >> >> >>> >> > Of course I'm using 1-M relationships but I use them >> >> with List >> >> >>> >> > not >> >> >>> >> hashset, >> >> >>> >> > why you dont give a try to list only for look if the >> >> problem is >> >> >>> >> > with hashset. >> >> >>> >> > El 18/11/2012 19:59, "Chris Wolf" >> >> <cwolf.a...@gmail.com> escribió: >> >> >>> >> > >> >> >>> >> >> José, >> >> >>> >> >> >> >> >>> >> >> Thanks for your reply. My pom.xml setup is very similar to >> >> >>> >> >> yours >> >> >>> and >> >> >>> >> >> the "enhance" goal runs without error, but, as I mentioned, >> >> >>> >> >> I still get the error on "casting >> >> java.util.HashSet". Are you able >> >> >>> >> >> to persist entities with 1-M or M-M relationships? >> >> >>> >> >> >> >> >>> >> >> BTW, I changed my code to temporarily change JPA >> >> provider from >> >> >>> OpenJPA >> >> >>> >> >> to the Hibernate JPA provider >> >> >>> >> >> and, once again, Hibernate's JPA reports: >> >> >>> >> >> >> >> >>> >> >> Exception in thread "main" >> >> java.lang.IllegalArgumentException: >> >> >>> Unknown >> >> >>> >> >> entity: java.util.HashSet >> >> >>> >> >> at >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityMa >> >> >>> nagerImpl.java:671) >> >> >>> >> >> >> >> >>> >> >> Well, at least both JPA implementations are >> >> complaining about >> >> >>> >> >> the >> >> >>> same >> >> >>> >> >> issue - I just wish I knew >> >> >>> >> >> what I was doing! I know I can get this to work >> >> in an instant by >> >> >>> >> >> reverting to Hibernate-only >> >> >>> >> >> solution, but I was hoping the byte-code weaving of >> >> JPA would >> >> >>> >> >> be a performance advantage over Hibernate's >> >> reflection/proxy >> >> >>> >> >> pattern. >> >> >>> >> >> >> >> >>> >> >> Thanks again, >> >> >>> >> >> >> >> >>> >> >> -Chris >> >> >>> >> >> >> >> >>> >> >> On Sun, Nov 18, 2012 at 1:26 PM, José Luis Cetina < >> >> >>> maxtorz...@gmail.com >> >> >>> >> > >> >> >>> >> >> wrote: >> >> >>> >> >> > I have this in my pom.xml for ENHANCMENT and works: >> >> >>> >> >> > >> >> >>> >> >> > <!--OPENJPA ENHANCMENT--> >> >> >>> >> >> > <plugin> >> >> >>> >> >> > <groupId>org.apache.openjpa</groupId> >> >> >>> >> >> > >> >> <artifactId>openjpa-maven-plugin</artifactId> >> >> >>> >> >> > <version>2.2.0</version> >> >> >>> >> >> > <configuration> >> >> >>> >> >> > >> >> >>> >> >> > <includes>mypackage/model/*.class</includes> >> >> >>> >> >> > >> >> >>> >> <addDefaultConstructor>true</addDefaultConstructor> >> >> >>> >> >> > >> >> >>> >> >> > >> >> <enforcePropertyRestrictions>true</enforcePropertyRestrictio >> >> >>> >> >> > ns> >> >> >>> >> >> > >> >> >>> >> >> > >> >> <connectionDriverName>com.mysql.jdbc.Driver</connectionDriverName> >> >> >>> >> >> > <connectionProperties> >> >> >>> >> >> > >> >> driverClass=${database.driver.name}, >> >> >>> >> >> > >> >> jdbcUrl=${database.connection.url}, >> >> >>> >> >> > user=${database.user}, >> >> >>> >> >> > password=${database.password}, >> >> >>> >> >> > minPoolSize=5, >> >> >>> >> >> > acquireRetryAttempts=3, >> >> >>> >> >> > maxPoolSize=20 >> >> >>> >> >> > </connectionProperties> >> >> >>> >> >> > </configuration> >> >> >>> >> >> > <executions> >> >> >>> >> >> > <execution> >> >> >>> >> >> > <id>enhancer</id> >> >> >>> >> >> > <phase>process-classes</phase> >> >> >>> >> >> > <goals> >> >> >>> >> >> > <goal>enhance</goal> >> >> >>> >> >> > </goals> >> >> >>> >> >> > </execution> >> >> >>> >> >> > </executions> >> >> >>> >> >> > <dependencies> >> >> >>> >> >> > <dependency> >> >> >>> >> >> > >> >> <groupId>org.apache.openjpa</groupId> >> >> >>> >> >> > <artifactId>openjpa</artifactId> >> >> >>> >> >> > <version>2.2.0</version> >> >> >>> >> >> > </dependency> >> >> >>> >> >> > </dependencies> >> >> >>> >> >> > </plugin> >> >> >>> >> >> > >> >> >>> >> >> > In my persistence.xml i have: >> >> >>> >> >> > >> >> >>> >> >> > <property name="openjpa.ConnectionUserName" >> >> >>> >> value="${db.username}"/> >> >> >>> >> >> > <property name="openjpa.ConnectionPassword" >> >> >>> >> >> value="${db.password}"/> >> >> >>> >> >> > <property name="openjpa.ConnectionURL" >> >> value="${db.url}"/> >> >> >>> >> >> > <property name="openjpa.ConnectionDriverName" >> >> >>> >> >> > value="${db.driver.class}"/> >> >> >>> >> >> > >> >> >>> >> >> > You can replace the database properties in >> >> persistence.xml >> >> >>> >> >> > with >> >> >>> your >> >> >>> >> own >> >> >>> >> >> > values >> >> >>> (${db.username},${db.password},${db.url},${db.driver.class}). >> >> >>> >> >> > >> >> >>> >> >> > >> >> >>> >> >> > I use this configuration for my JEE Projects. >> >> >>> >> >> > >> >> >>> >> >> > Maybe this can help you. >> >> >>> >> >> > >> >> >>> >> >> > Regards. >> >> >>> >> >> > >> >> >>> >> >> > SCJA. JL Cetina >> >> >>> >> >> > >> >> >>> >> >> > >> >> >>> >> >> > 2012/11/18 Chris Wolf <cwolf.a...@gmail.com> >> >> >>> >> >> > >> >> >>> >> >> >> I wrote a shell script to directly invoke PCEnhancer on >> >> >>> >> >> >> class java.util.HashSet, and even that didn't work: >> >> >>> >> >> >> >> >> >>> >> >> >> $ ./enhance.sh >> >> >>> >> >> >> 52 openjpa INFO [main] openjpa.Tool - >> >> Enhancer running on >> >> >>> type >> >> >>> >> >> >> "java.util.HashSet". >> >> >>> >> >> >> Exception in thread "main" java.lang.RuntimeException: >> >> >>> >> >> >> java.io.FileNotFoundExcep >> >> >>> >> >> >> tion: >> >> >>> >> >> >> file:\C:\opt\jdk\jre\lib\rt.jar!\java\util\HashSet.class >> >> >>> (The >> >> >>> >> >> >> filename, directory name, or volume label syntax >> >> is incorrect) >> >> >>> >> >> >> at >> >> >>> >> >> >> >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> org.apache.openjpa.lib.conf.Configurations.launchRunnable(Configurat >> >> >>> ions.java:744) >> >> >>> >> >> >> >> >> >>> >> >> >> On Sun, Nov 18, 2012 at 10:37 AM, Chris Wolf < >> >> >>> cwolf.a...@gmail.com> >> >> >>> >> >> wrote: >> >> >>> >> >> >> > Hello, >> >> >>> >> >> >> > >> >> >>> >> >> >> > This is my first posting and first attempt to use >> >> >>> >> >> >> > OpenJPA. I >> >> >>> put >> >> >>> >> >> >> > together a quick demo and can persist individual, >> >> >>> >> >> >> > unrelated entities. However, when I try to persist >> >> >>> >> >> >> > related entities to two tables via a link table, i.e. >> >> >>> many-2-many, >> >> >>> >> >> >> > it keeps complaining about "casting to >> >> >>> >> >> >> > PersistenceCapable", in particular the class >> >> "java.util.HashSet". >> >> >>> >> >> >> > >> >> >>> >> >> >> > First, I am using the Eclipse JPA plugin >> >> (called "Dali" >> >> >>> >> >> >> > or "EclipseLink"). Of course, I have OpenJPA >> >> configured >> >> >>> >> >> >> > as my JPA provider, I am in a plain Java SE >> >> environment >> >> >>> >> >> >> > with LOCAL_RESOURCE via JDBC connection >> >> properties in the >> >> >>> >> >> >> > persistence.xml. I am using Sun/Oracle 64bit >> >> >>> >> >> >> > JDK-1.6 and OpenJPA-2.2.0. >> >> >>> >> >> >> > >> >> >>> >> >> >> > I am using the Eclipse JPA plugin to generate >> >> the entity >> >> >>> classes >> >> >>> >> from >> >> >>> >> >> >> > already-exiting database schema objects, and that code >> >> >>> >> >> >> > looks like (just pasting the relationship code), >> >> >>> this >> >> >>> >> >> >> > action also adds these classes to persistence.xml via >> >> >>> >> >> >> > persistence-unit/class elements. >> >> >>> >> >> >> > >> >> >>> >> >> >> > First M2M entity, "MarketData": >> >> >>> >> >> >> > >> >> >>> >> >> >> > //bi-directional many-to-many >> >> association to RiskFactor >> >> >>> >> >> >> > @ManyToMany(mappedBy="marketData") >> >> >>> >> >> >> > public Set<RiskFactor> getRiskFactors() { >> >> >>> >> >> >> > return this.riskFactors; >> >> >>> >> >> >> > } >> >> >>> >> >> >> > >> >> >>> >> >> >> > Second M2M entity "RiskFactor": >> >> >>> >> >> >> > >> >> >>> >> >> >> > //bi-directional many-to-many >> >> association to MarketData >> >> >>> >> >> >> > @ManyToMany >> >> >>> >> >> >> > @JoinTable( >> >> >>> >> >> >> > name="MARKET_DATA__RISK_FACTOR" >> >> >>> >> >> >> > , joinColumns={ >> >> >>> >> >> >> > >> >> >>> >> >> >> > @JoinColumn(name="RISK_FACTOR_ID", >> >> >>> >> >> >> nullable=false) >> >> >>> >> >> >> > } >> >> >>> >> >> >> > , inverseJoinColumns={ >> >> >>> >> >> >> > >> >> >>> >> >> >> > @JoinColumn(name="MARKET_DATA_ID", >> >> >>> >> >> >> nullable=false) >> >> >>> >> >> >> > } >> >> >>> >> >> >> > ) >> >> >>> >> >> >> > public Set<MarketData> getMarketData() { >> >> >>> >> >> >> > return this.marketData; >> >> >>> >> >> >> > } >> >> >>> >> >> >> > >> >> >>> >> >> >> > When I run the code, the log indicates implicit runtime >> >> >>> enhacement, >> >> >>> >> >> >> > yet it is complaining: >> >> >>> >> >> >> > >> >> >>> >> >> >> > "[persistdemo.ojpa.entities.RiskFactor@61578aab] >> >> >>> >> [java.util.HashSet]" >> >> >>> >> >> >> > to PersistenceCapable failed. Ensure that it has been >> >> >>> enhanced." >> >> >>> >> >> >> > >> >> >>> >> >> >> > ...when it says, "Ensure that it has been enhanced." - >> >> >>> >> >> >> > which is >> >> >>> >> "it" >> >> >>> >> >> >> > referring to? The entity "RiskFactor" or the field >> >> >>> relationship >> >> >>> >> >> >> > field's class, "java.util.HashSet"? >> >> >>> >> >> >> > >> >> >>> >> >> >> > >> >> >>> >> >> >> > 186 openjpa INFO [main] openjpa.Runtime - OpenJPA >> >> >>> dynamically >> >> >>> >> >> >> > loaded the class enhancer. Any classes that were not >> >> >>> >> >> >> > enhanced >> >> >>> at >> >> >>> >> build >> >> >>> >> >> >> > time will be enhanced when they are loaded by the JVM. >> >> >>> >> >> >> > SLF4J: Failed to load class >> >> >>> "org.slf4j.impl.StaticLoggerBinder". >> >> >>> >> >> >> > SLF4J: Defaulting to no-operation (NOP) logger >> >> >>> >> >> >> > implementation >> >> >>> >> >> >> > SLF4J: See >> >> >>> >> >> >> > http://www.slf4j.org/codes.html#StaticLoggerBinderfor >> >> >>> >> >> >> > further details. >> >> >>> >> >> >> > 243 openjpa INFO [main] openjpa.Runtime - OpenJPA >> >> >>> dynamically >> >> >>> >> >> >> > loaded a validation provider. >> >> >>> >> >> >> > 596 openjpa INFO [main] openjpa.Runtime - >> >> Starting OpenJPA >> >> >>> >> 2.2.0 >> >> >>> >> >> >> > 630 openjpa INFO [main] openjpa.jdbc.JDBC - Using >> >> >>> dictionary >> >> >>> >> class >> >> >>> >> >> >> > "org.apache.openjpa.jdbc.sql.OracleDictionary". >> >> >>> >> >> >> > Exception in thread "main" >> >> <openjpa-2.2.0-r422266:1244990 >> >> >>> nonfatal >> >> >>> >> >> >> > user error> >> >> org.apache.openjpa.persistence.ArgumentException: >> >> >>> >> Attempt >> >> >>> >> >> >> > to cast instance >> >> >>> "[persistdemo.ojpa.entities.RiskFactor@61578aab] >> >> >>> >> >> >> > [java.util.HashSet]" to PersistenceCapable failed. >> >> >>> >> >> >> > Ensure >> >> >>> that it >> >> >>> >> has >> >> >>> >> >> >> > been enhanced. >> >> >>> >> >> >> > >> >> >>> >> >> >> > Maybe because "java.util.HashSet" was loaded >> >> before the >> >> >>> >> >> >> > dynamic enhancer could get to it? >> >> >>> >> >> >> > >> >> >>> >> >> >> > Next, I tried performing build-time enhancement via >> >> >>> >> >> >> > Maven, per >> >> >>> this >> >> >>> >> >> doc: >> >> >>> >> >> >> > http://openjpa.apache.org/enhancement-with-maven.html >> >> >>> >> >> >> > >> >> >>> >> >> >> > When I ran "mvn openjpa:enhance", it finished with >> >> >>> >> >> >> > success, but >> >> >>> >> none >> >> >>> >> >> >> > of the classes in target/classes seemed to have be >> >> >>> >> >> >> > changed (last-modified date same as >> >> compile-time). and >> >> >>> >> >> >> > re-running >> >> >>> results >> >> >>> >> in >> >> >>> >> >> >> > the same error and stack-trace. >> >> >>> >> >> >> > >> >> >>> >> >> >> > My openjpa:enhance configuration was: >> >> >>> >> >> >> > <configuration> >> >> >>> >> >> >> > >> >> <includes>**/entities/*.class,java.util.HashSet</includes> >> >> >>> >> >> >> > >> >> <addDefaultConstructor>true</addDefaultConstructor> >> >> >>> >> >> >> > >> >> >>> >> >> >> <enforcePropertyRestrictions>true</enforcePropertyRestrictions> >> >> >>> >> >> >> > </configuration> >> >> >>> >> >> >> > >> >> >>> >> >> >> > >> >> >>> >> >> >> > Next, I tried invoking with: >> >> >>> >> >> >> > >> >> >>> >> >> >> > >> >> -javaagent:/opt/apache-openjpa-2.2.0/openjpa-all-2.2.0.ja >> >> >>> >> >> >> > r >> >> >>> >> >> >> > >> >> >>> >> >> >> > Same error - same stack trace. >> >> >>> >> >> >> > >> >> >>> >> >> >> > Then, I tried setting this property: >> >> >>> >> >> >> > openjpa.RuntimeUnenhancedClasses=supported >> >> >>> >> >> >> > >> >> >>> >> >> >> > Same error - same stack trace. >> >> >>> >> >> >> > >> >> >>> >> >> >> > >> >> >>> >> >> >> > Then, following a suggestion I found here: >> >> >>> >> >> >> > >> >> >>> >> >> >> >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> http://openjpa.208410.n2.nabble.com/JPA-adding-entities-to-EntityMan >> >> >>> agerFactory-programmatically-td210697.html >> >> >>> >> >> >> > >> >> >>> >> >> >> > I tried setting both: >> >> >>> >> >> >> > openjpa.RuntimeUnenhancedClasses=supported >> >> >>> >> >> >> > openjpa.MetaDataFactory=jpa(Types=java.util.HashSet) >> >> >>> >> >> >> > >> >> >>> >> >> >> > BTW, this is a dead link >> >> >>> >> >> >> > "User's Guide on Enhancement" / >> >> >>> >> >> >> > >> >> >>> >> >> >> >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> http://openjpa.apache.org/builds/latest/docs/manual/manual.html#ref_ >> >> >>> guide_pc_enhance >> >> >>> >> >> >> > (from page: >> >> >>> >> >> >> > http://openjpa.apache.org/entity-enhancement.html) >> >> >>> >> >> >> > >> >> >>> >> >> >> > So is there any way to use OpenJPA to persist objects >> >> >>> >> >> >> > related >> >> >>> via a >> >> >>> >> >> >> > link table? (there obviously must be, but >> >> it's a total >> >> >>> >> >> >> > mystery to me) I can't believe it's this >> >> >>> >> difficult, >> >> >>> >> >> >> > I must be doing something really dumb. >> >> >>> >> >> >> > >> >> >>> >> >> >> > Regards, >> >> >>> >> >> >> > >> >> >>> >> >> >> > CW >> >> >>> >> >> >> >> >> >>> >> >> > >> >> >>> >> >> > >> >> >>> >> >> > >> >> >>> >> >> > -- >> >> >>> >> >> > >> >> >>> >> >> ------------------------------------------------------------------- >> >> >>> >> >> > *SCJA. José Luis Cetina* >> >> >>> >> >> > >> >> >>> >> >> ------------------------------------------------------------------- >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> >> >> >> >>
