My bad. Thanks for noticing, but that's not the problem. I don't
actually call it Enumv, I call it EnumTrait, and I just failed to change
it back in the email.
Jorge Ortiz wrote:
> I don't really know much about JPA, but just a quick observation on the
> code you posted:
>
> Your code has line:
> abstract class EnumvType(val et: Enumeration with EnumTrait) extends
> UserType {
> whereas JPA Demo has line:
> abstract class EnumvType(val et: Enumeration with Enumv) extends
> UserType {
>
> I don't know what your EnumTrait is, or whether it might be causing the
> problem, but it's worth noting.
>
> One thing I can do is release a version of 0.10 that compiles against
> Scala 2.7.2 and rolls back the minor changes made to Lift to compile
> against 2.7.2. But I don't know how David et al feel about this.
>
> --j
>
> On Thu, Jan 22, 2009 at 3:16 PM, Charles F. Munat <c...@munat.com
> <mailto:c...@munat.com>> wrote:
>
>
> I have an entity thus:
>
> @Entity
> @Table{val name = "cocktails"}
> class Cocktail extends BaseEntity {
> @Id
> @GeneratedValue{val strategy = GenerationType.AUTO}
> var id : Long = _
>
> var name : String = ""
>
> var description : String = ""
>
> var ingredients : String = ""
>
> @Column{val name = "file_name"}
> var fileName : String = ""
>
> @Column{val name = "is_archived"}
> var isArchived : Boolean = false
>
> @Type{val `type` = "com.xxx.model.CocktailGroupType"}
> @Column{val name="cocktail_group"}
> var cocktailGroup: CocktailGroup.Value = CocktailGroup.Originals
> }
>
>
>
> Which uses this enumeration:
>
> object CocktailGroup extends Enumeration with Enumv {
> val Originals = Value("Originals")
> val Contemporaries = Value("Contemporaries")
> val Classics = Value("Classics")
> val Others = Value("Others")
> }
>
> class CocktailGroupType extends EnumvType(CocktailGroup) {}
>
>
>
> Which is queried thus in orm.xml:
>
> <named-query name="findCocktailsByGroup">
> <query><![CDATA[from Cocktail c
> where c.isArchived = false
> and c.cocktailGroup = :cocktailGroup
> order by c.name <http://c.name>]]></query>
> </named-query>
>
>
>
> And called from CocktailOps.scala:
>
> 120: val cocktails = Model.createNamedQuery[Cocktail](
> "findCocktailsByGroup",
> "cocktailGroup" -> "Originals").findAll
>
>
>
> Using Enumv:
>
> trait Enumv {
>
> this: Enumeration =>
>
> private var nameDescriptionMap =
> scala.collection.mutable.Map[String, String]()
>
> def Value(name: String, desc: String) : Value = {
> nameDescriptionMap += (name -> desc)
> new Val(name)
> }
>
> def getDescriptionOrName(ev: this.Value) = {
> try {
> nameDescriptionMap(""+ev)
> } catch {
> case e: NoSuchElementException => ev.toString
> }
> }
>
> def getNameDescriptionList = this.elements.toList.map(
> v => (v.toString, getDescriptionOrName(v) ) ).toList
> }
>
>
>
> And EnumvType:
>
> abstract class EnumvType(val et: Enumeration with EnumTrait)
> extends UserType {
>
> val SQL_TYPES = Array({Types.VARCHAR})
>
> override def sqlTypes() = SQL_TYPES
>
> override def returnedClass = classOf[et.Value]
>
> override def equals(x: Object, y: Object): Boolean = {
> return x == y
> }
>
> override def hashCode(x: Object) = x.hashCode
>
> override def nullSafeGet(resultSet: ResultSet,
> names: Array[String],
> owner: Object): Object = {
> val value = resultSet.getString(names(0))
> if (resultSet.wasNull()) return null
> else {
> return et.valueOf(value)
> }
> }
>
> override def nullSafeSet(statement: PreparedStatement,
> value: Object,
> index: Int): Unit = {
> if (value == null) {
> statement.setNull(index, Types.VARCHAR)
> } else {
> val en = value.toString
> statement.setString(index, en)
> }
> }
>
> override def deepCopy(value: Object): Object = value
>
> override def isMutable() = false
>
> override def disassemble(value: Object) =
> value.asInstanceOf[Serializable]
>
> override def assemble(cached: Serializable, owner: Object):
> Serializable = cached
>
> override def replace(original: Object,
> target: Object,
> owner: Object) = original
>
> }
>
>
> Which gets me this error:
>
> Exception occured while processing /drinks/
>
> Message: javax.persistence.PersistenceException:
> org.hibernate.PropertyAccessException: could not set a field value by
> reflection setter of com.xxx.model.Cocktail.cocktailGroup
>
>
> org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:630)
> org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:75)
> com.xxx.model.ScalaQuery.getResultList(JPA.scala:82)
> com.xxx.model.ScalaQuery.findAll(JPA.scala:77)
> com.xxx.snippet.CocktailOps.originals(CocktailOps.scala:120)
>
>
>
>
> I have tried everything I can think of. This used to work before the
> recent switch to 2.7.3. Can anyone spot the problem?
>
> Thanks. Website down. Am really screwed here.
>
> Chas.
>
>
>
>
> >
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Lift" group.
To post to this group, send email to liftweb@googlegroups.com
To unsubscribe from this group, send email to
liftweb+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/liftweb?hl=en
-~----------~----~----~----~------~----~------~--~---
