The intact template-generated source code was:
Component.java:
"
package domainapp.dom.PPB;
import javax.jdo.annotations.Column;
import javax.jdo.annotations.DatastoreIdentity;
import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.IdentityType;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Queries;
import javax.jdo.annotations.Query;
import javax.jdo.annotations.Unique;
import javax.jdo.annotations.Version;
import javax.jdo.annotations.VersionStrategy;
import org.apache.isis.applib.annotation.BookmarkPolicy;
import org.apache.isis.applib.annotation.DomainObject;
import org.apache.isis.applib.annotation.DomainObjectLayout;
import org.apache.isis.applib.annotation.Editing;
import org.apache.isis.applib.annotation.Property;
import lombok.Getter;
import lombok.Setter;
@PersistenceCapable(
identityType = IdentityType.DATASTORE,
schema = "PPB",
table = "Component"
)
@DatastoreIdentity(
strategy = IdGeneratorStrategy.IDENTITY,
column = "id")
@Version(
strategy = VersionStrategy.VERSION_NUMBER,
column = "version")
@Queries({
@Query(
name = "find", language = "JDOQL",
value = "SELECT "
+ "FROM domainapp.dom.PPB.Component "),
@Query(
name = "findByDescriptionContains", language = "JDOQL",
value = "SELECT "
+ "FROM domainapp.dom.PPB.Component "
+ "WHERE Description.indexOf(:Description) >= 0 "),
@Query(
name = "findByDescription", language = "JDOQL",
value = "SELECT "
+ "FROM domainapp.dom.PPB.Component "
+ "WHERE Description == :Description ")
})
@Unique(name = "Component_Description_UNQ", members = { "Description" })
@DomainObject(
editing = Editing.DISABLED
)
@DomainObjectLayout(
bookmarking = BookmarkPolicy.AS_ROOT
)
public class Component implements Comparable<Component> {
@Column(allowsNull = "false")
@Property()
@Getter @Setter
private String Description;
//region > compareTo, toString
@Override
public int compareTo(final Component other) {
return org.apache.isis.applib.util.ObjectContracts.compare(this,
other, "Description");
}
@Override
public String toString() {
return org.apache.isis.applib.util.ObjectContracts.toString(this,
"Description");
}
//endregion
}
"
ComponentMenu.java:
"
package domainapp.dom.PPB;
import org.apache.isis.applib.annotation.Action;
import org.apache.isis.applib.annotation.ActionLayout;
import org.apache.isis.applib.annotation.BookmarkPolicy;
import org.apache.isis.applib.annotation.DomainService;
import org.apache.isis.applib.annotation.DomainServiceLayout;
import org.apache.isis.applib.annotation.MemberOrder;
import org.apache.isis.applib.annotation.NatureOfService;
import org.apache.isis.applib.annotation.RestrictTo;
import org.apache.isis.applib.annotation.SemanticsOf;
@DomainService(
nature = NatureOfService.VIEW_MENU_ONLY
)
@DomainServiceLayout(
named = "Components",
menuOrder = "210"
)
public class ComponentMenu {
@Action(
semantics = SemanticsOf.SAFE,
restrictTo = RestrictTo.PROTOTYPING
)
@ActionLayout(
bookmarking = BookmarkPolicy.AS_ROOT
)
@MemberOrder(sequence = "1")
public java.util.List<Component> listAll() {
return componentrepository.listAll();
}
@Action(
semantics = SemanticsOf.SAFE
)
@ActionLayout(
bookmarking = BookmarkPolicy.AS_ROOT
)
@MemberOrder(sequence = "2")
public java.util.List<Component> findByDescription(
final String Description
) {
return componentrepository.findByDescriptionContains(Description);
}
@Action(
)
@MemberOrder(sequence = "3")
public Component create(
final String Description) {
return componentrepository.create(Description);
}
@javax.inject.Inject
ComponentRepository componentrepository;
}
"
ComponentRepository.java:
"
package domainapp.dom.PPB;
import org.apache.isis.applib.annotation.DomainService;
import org.apache.isis.applib.annotation.NatureOfService;
import org.apache.isis.applib.annotation.Programmatic;
@DomainService(
nature = NatureOfService.DOMAIN,
repositoryFor = Component.class
)
public class ComponentRepository {
@Programmatic
public java.util.List<Component> listAll() {
return container.allInstances(Component.class);
}
@Programmatic
public Component findByDescription(
final String Description
) {
return container.uniqueMatch(
new org.apache.isis.applib.query.QueryDefault<>(
Component.class,
"findByDescription",
"Description", Description));
}
@Programmatic
public java.util.List<Component> findByDescriptionContains(
final String Description
) {
return container.allMatches(
new org.apache.isis.applib.query.QueryDefault<>(
Component.class,
"findByDescriptionContains",
"Description", Description));
}
@Programmatic
public Component create(final String Description) {
final Component component =
container.newTransientInstance(Component.class);
component.setDescription(Description);
container.persistIfNotAlready(component);
return component;
}
@Programmatic
public Component findOrCreate(
final String Description
) {
Component component = findByDescription(Description);
if (component == null) {
component = create(Description);
}
return component;
}
@javax.inject.Inject
org.apache.isis.applib.DomainObjectContainer container;
}
"
---------- Forwarded message ----------
From: L Eder <[email protected]>
Date: Tue, 14 Feb 2017 10:00:48 -0400
Subject: Error "The application failed to start due to a number of
metamodel validation errors..."
To: [email protected]
Hello isis users:
I tried to create my first domain object, called Component, using the
file templates.
I created a package under the dom module, and created the files
Component. java, ComponentMenu.java, and ComponentRepository.java.
I then ran the project, without build errors.
However, opening the browser at http://localhost:8080/wicket/ i got this:
Error “The application failed to start due to a number of metamodel
validation errors. domainapp.dom.PPB.Component#description:
incompatible default handling of required/optional properties between
Isis and JDO; add @javax.jdo.annotations.Column(allowsNull="...")”
Source: web browser
Any help is appreciated, thanks
