> i can also pass along a maven2 project Can you post the Java source of the test case and domain classes for us to reproduce the error?
afaik, Application identity classes like PageId are not enhanced in current versions, they used to be. Pinaki Poddar BEA Systems 415.402.7317 -----Original Message----- From: jeff [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 03, 2007 11:57 AM To: open-jpa-dev@incubator.apache.org Subject: RE: composite ID w/ another composite ID as a field thanks pinaki, as a test, i removed Page.book as an @Id, and made the corresponding change in PageId (removed the book field of type PageId). this caused the class cast exception below to go away. so, it does appear to have some relation of to the use of the composite ID within a composite ID, although you're right it might be a completely different issue. this is with a trunk (as of this morning) build of openjpa. i have attached the log you asked for. nothing stood out. i can also pass along a maven2 project that contains the test case that fails if that helps. i can't see to attach it here directly though as apache's spam filter doesn't like it. let me know. thanks again. Pinaki Poddar <[EMAIL PROTECTED]> wrote: Jeff, 1. The errors look rather unrelated to original problem of composite id. 2. The errors apparently caused by enviroment setup, so please a) get a clean 0.9.7 openjpa (either building locally from the source, or pre-built jars from the openjpa web-site) b) if the error persists, report with trace-level logging (property name="openjpa.Log" value="DefaultLevel=TRACE"/> and complete stack trace. Pinaki Poddar BEA Systems 415.402.7317 -----Original Message----- From: jeff [mailto:[EMAIL PROTECTED] Sent: Monday, April 02, 2007 4:12 PM To: open-jpa-dev@incubator.apache.org Subject: RE: composite ID w/ another composite ID as a field thanks pinaki, after making those changes, on 0.9.6, i get: Caused by: java.lang.ClassCastException: org.apache.openjpa.util.ObjectId at com.mycompany.book.Page.pcCopyKeyFieldsToObjectId(Page.java) at org.apache.openjpa.util.ApplicationIds.create(ApplicationIds.java:383) at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2349) i built the trunk locally, and mvn installed it into my local repository. when i run against it, i get: Caused by: java.lang.RuntimeException: There were errors initializing your configuration: org.apache.openjpa.lib.util.ParseException: Instantiation of plugin "QueryCompilationCache" with value "true" caused an error "java.lang.IllegalArgumentException: java.lang.ClassNotFoundException: org.apache.openjpa.util.CacheMap". The alias or class name may have been misspelled (as it closely matches the valid plugin alias "true"), or the class may not be available in the class path. Valid aliases for this plugin are: [all, false, true] followed by: Caused by: java.lang.IllegalArgumentException: java.lang.ClassNotFoundException: org.apache.openjpa.util.CacheMap at serp.util.Strings.toClass(Strings.java:211) at serp.util.Strings.toClass(Strings.java:140) at org.apache.openjpa.lib.conf.Configurations.newInstance(Configurations.ja va:191) are there known issues w/ 0.9.7? what i don't understand is that ...CacheMap is in the sample place, in the same JAR as w/ the 0.9.6 dependency, just in my local repository. also odd is that i only see the one info message during enhancement: [java] 1268 book INFO [main] openjpa.Tool - No targets were given. Running on all classes in your persistent classes list, or all metadata files in classpath directories if you have not listed your persistent classes. Use -help to display tool usage information. no details are printed about the classes being enhanced. obviously this was working in version 0,9.6. any ideas? Pinaki Poddar wrote: Hello Jeff, OpenJPA supports the cited example where Page using a composite ID which in turn refers to Book's composite ID. Book/Page/Library classes work with a) openjpa-0.9.7 (do not know whether observed errors are due to usage of earlier 0.9.6 version) b) following modifications in Page.book field (with a + sign) @Id @Column(nullable = false) @ManyToOne (cascade = CascadeType.ALL) + @JoinColumns({ + @JoinColumn(name="book_library_LIBRARY_NAME", referencedColumnName="library_LIBRARY_NAME"), + @JoinColumn(name="book_BOOK_NAME", referencedColumnName="BOOK_NAME") }) private Book book; where the JoinColumns specification refers to following schema (as per your Page/Book/Library class annotations): mysql> desc book; +----------------------+--------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +----------------------+--------------+------+-----+---------+-------+ | library_LIBRARY_NAME | varchar(255) | NO | PRI | NULL | | | BOOK_NAME | varchar(255) | NO | PRI | NULL | | +----------------------+--------------+------+-----+---------+-------+ mysql> desc page; +---------------------------+--------------+------+-----+---------+----- --+ | Field | Type | Null | Key | Default | Extra | +---------------------------+--------------+------+-----+---------+----- --+ | book_library_LIBRARY_NAME | varchar(255) | NO | PRI | NULL | | | book_BOOK_NAME | varchar(255) | NO | PRI | NULL | | | PAGE_NUMBER | int(11) | NO | PRI | NULL | | +---------------------------+--------------+------+-----+---------+----- --+ Without explicitly naming the join columns, following error is generated: Caused by: <4|true|0.9.7-incubating-SNAPSHOT> org.apache.openjpa.persistence.ArgumentException: "crxxx.Page.book" does not supply a name for at least one declared column. Since this mapping can involve multiple columns or uses constant joins, each column must give either its name or a non-constant target. at org.apache.openjpa.jdbc.meta.MappingInfo.mergeJoinColumn(MappingInfo.jav a:1372) at org.apache.openjpa.jdbc.meta.MappingInfo.createJoins(MappingInfo.java:11 86) at org.apache.openjpa.jdbc.meta.MappingInfo.createForeignKey(MappingInfo.ja va:948) at org.apache.openjpa.jdbc.meta.ValueMappingInfo.getTypeJoin(ValueMappingIn fo.java:101) at org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy.map(RelationFi eldStrategy.java:144) at org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java: 117) at org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(Ru ntimeStrategyInstaller.java:77) at org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.ja va:435) at org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:400) at org.apache.openjpa.jdbc.meta.ClassMapping.resolveNonRelationMappings(Cla ssMapping.java:810) at org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRep ository.java:316) at org.apache.openjpa.meta.MetaDataRepository.preMapping(MetaDataRepository .java:602) at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.ja va:489) ... 24 more NestedThrowables: <4|true|0.9.7-incubating-SNAPSHOT> org.apache.openjpa.persistence.ArgumentException: Field "crxxx.Book.pages" declares "crxxx.Page.book" as its mapped-by field, but this field is not a direct relation. at org.apache.openjpa.jdbc.meta.strats.RelationToManyInverseKeyFieldStrateg y.map(RelationToManyInverseKeyFieldStrategy.java:123) at org.apache.openjpa.jdbc.meta.strats.RelationCollectionInverseKeyFieldStr ategy.map(RelationCollectionInverseKeyFieldStrategy.java:92) at org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java: 117) at org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(Ru ntimeStrategyInstaller.java:77) at org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.ja va:435) at org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:400) at org.apache.openjpa.jdbc.meta.ClassMapping.resolveMapping(ClassMapping.ja va:781) at org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1570) ... Pinaki Poddar BEA Systems 415.402.7317 -----Original Message----- From: jeff [mailto:[EMAIL PROTECTED] Sent: Monday, April 02, 2007 12:42 PM To: open-jpa-dev@incubator.apache.org Subject: composite ID w/ another composite ID as a field say i have Library, Book, and Page classes. a Library has many Books, and a Book has many Pages. A Library's ID is it's name (simple). A Book's ID is a composite of it's name and it's owning Library's name (bidirectional relationship). A Page's ID is a composite of it's number and it's owning Book's ID, a BookID. so, the PageId class starts like: public class PageId implements Serializable { private int number; private BookId book; the error i'm getting is at runtime ... <4|true|0.9.6-incubating> org.apache.openjpa.persistence.ArgumentException: Field "com.mycompany.book.Book.pages" declares "com.mycompany.book.Page.book" as its mapped-by field, but this field is not a direct relation. first, is what i'm trying to do even valid? i suspect it is not, and the problem is that the fields of the ID class must be "simple" types (i believe the spec demands that). although, the error message is a little confusing so i am not sure. it occurs to me that another way to achieve this would be to add bookName and libraryName fields to the Page class, and add a @PrePersist method that populates them by calling book.getName() and book.getLibrary().getName(). but again this is messy because that data is already in the table because of the bidirectional relationship between the objects. as always, i'm open to "what are you an idiot?" responses if i am just going about trying to define the Library, Book, Page relationship in an obtuse manner. classes attached. ________________________________ The fish are biting. 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