Problem is fixed thx for all. :)
yokenji wrote:
>
> Hi,
>
> I removed the @GeneratedValue
> but still no changement.
> when updating i don't see any version number.
> Is my configuration correct or do I have to put some configurations in the
> persistence file.
>
> Greets K,
>
>
> Craig L Russell wrote:
>>
>> Seems like it would be useful for OpenJPA to issue a warning or an
>> error in the case of the user specifying both @Version and
>> @GeneratedValue on the same property.
>>
>> Craig
>>
>> On Nov 16, 2009, at 9:08 AM, Fay Wang wrote:
>>
>>> Hi,
>>> You don't need to put generatedValue annotation for the version
>>> field. Openjpa will keep track of the version for you.
>>>
>>> @Version
>>> public long getVersion() {
>>> return this.version;
>>> }
>>>
>>>
>>>
>>> ----- Original Message ----
>>> From: yokenji <[email protected]>
>>> To: [email protected]
>>> Sent: Mon, November 16, 2009 8:46:48 AM
>>> Subject: @Version annotation
>>>
>>>
>>> Hi there,
>>>
>>> I trying to use an annotatoin field @version but when updating the
>>> record i
>>> don't see any version in the database.
>>>
>>> Also,
>>> Element class:
>>>
>>> package entities;
>>>
>>> import java.io.Serializable;
>>> import java.util.Set;
>>>
>>> import javax.annotation.Generated;
>>> import javax.persistence.CascadeType;
>>> import javax.persistence.Column;
>>> import javax.persistence.Entity;
>>> import javax.persistence.FetchType;
>>> import javax.persistence.GeneratedValue;
>>> import javax.persistence.GenerationType;
>>> import javax.persistence.Id;
>>> import javax.persistence.JoinColumn;
>>> import javax.persistence.ManyToOne;
>>> import javax.persistence.NamedQueries;
>>> import javax.persistence.NamedQuery;
>>> import javax.persistence.OneToMany;
>>> import javax.persistence.Table;
>>> import javax.persistence.Temporal;
>>> import javax.persistence.TemporalType;
>>> import javax.persistence.Version;
>>>
>>> import org.apache.openjpa.persistence.jdbc.ForeignKey;
>>>
>>> /**
>>> * @author Ken
>>> */
>>> @Entity
>>> @NamedQueries({
>>> @NamedQuery(name="roots.Element",
>>> query="Select e From Element e" +
>>> " where e.parentElement is null"),
>>> @NamedQuery(name="one.Element",
>>> query="Select e From Element e" +
>>> " where e.dbID = :id")
>>> })
>>> @Table(name="Element")
>>> public class Element implements ElementInterface, Serializable {
>>>
>>> private static final long serialVersionUID = 4627343050926103812L;
>>>
>>> private String dbID;
>>> private String internID;
>>> private String name;
>>> private String description;
>>> private long version;
>>>
>>> private Set<Property> properties;
>>> private Element parentElement;
>>> private Set<Element> childElements;
>>>
>>> /**
>>> * This is the default constructor.
>>> */
>>> public Element() {
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#setDbID(java.lang.String)
>>> */
>>> public void setDbID(String dbID) {
>>> this.dbID = dbID;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#getDbID()
>>> */
>>> @Id
>>> @GeneratedValue(strategy = GenerationType.AUTO, generator="uuid-hex")
>>> public String getDbID() {
>>> return this.dbID;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#setInternID(java.lang.String)
>>> */
>>> public void setInternID(String internID) {
>>> this.internID = internID;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#getInternID()
>>> */
>>> public String getInternID() {
>>> return this.internID;
>>> }
>>>
>>>
>>> /**
>>> * @see entities.ElementInterface#getName()
>>> */
>>> public String getName() {
>>> return this.name;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#setName(java.lang.String)
>>> */
>>> public void setName(String name) {
>>> this.name = name;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#setDescription(java.lang.String)
>>> */
>>> public void setDescription(String description) {
>>> this.description = description;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#getDescription()
>>> */
>>> public String getDescription() {
>>> return this.description;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#setVersion(java.util.Date)
>>> */
>>> private void setVersion(int version) {
>>> this.version = version;
>>> }
>>>
>>> /**
>>> * @see entities.ElementInterface#getVersion()
>>> */
>>> @Version
>>> @GeneratedValue(strategy=GenerationType.AUTO)
>>> public long getVersion() {
>>> return this.version;
>>> }
>>>
>>> /**
>>> * Set the element properties.
>>> *
>>> * @param Set<Property> properties
>>> */
>>> public void setProperties(Set<Property> properties) {
>>> this.properties = properties;
>>> }
>>>
>>> /**
>>> * Get the element properties.
>>> *
>>> * @return Set<Property>
>>> */
>>> @OneToMany(cascade=CascadeType.ALL, fetch=FetchType.EAGER,
>>> mappedBy="element")
>>> public Set<Property> getProperties() {
>>> return properties;
>>> }
>>>
>>> /**
>>> * Set the element parent.
>>> *
>>> * @param Element parentElement
>>> */
>>> public void setParentElement(Element parentElement) {
>>> this.parentElement = parentElement;
>>> }
>>>
>>> /**
>>> * Get the element parent.
>>> *
>>> * @return Element
>>> */
>>> @ManyToOne(optional=true, fetch=FetchType.LAZY)
>>> @ForeignKey(name="FK_parent_element")
>>> @JoinColumn(name="parent_element", referencedColumnName="dbID")
>>> public Element getParentElement() {
>>> return parentElement;
>>> }
>>>
>>> /**
>>> * Set the element children.
>>> *
>>> * @param Set<Element> childElements
>>> */
>>> public void setChildElements(Set<Element> childElements) {
>>> this.childElements = childElements;
>>> }
>>>
>>> /**
>>> * Get the element children.
>>> *
>>> * @return Set<Element>
>>> */
>>> @OneToMany(cascade=CascadeType.ALL, mappedBy="parentElement",
>>> fetch=FetchType.EAGER)
>>> public Set<Element> getChildElements() {
>>> return childElements;
>>> }
>>>
>>> }
>>>
>>> Class Property:
>>>
>>>
>>> package entities;
>>>
>>> import java.io.Serializable;
>>> import javax.persistence.*;
>>> import org.apache.openjpa.persistence.jdbc.ForeignKey;
>>>
>>> /**
>>> * @author Ken
>>> */
>>> @Entity
>>> @NamedQueries({
>>> @NamedQuery(name="all.properties",
>>> query="Select p From Property p"),
>>> @NamedQuery(name="elementTemplate.properties",
>>> query="Select p From Property p" +
>>> " where p.elementTemplate = :owner"),
>>> @NamedQuery(name="one.property",
>>> query="Select p From Property p" +
>>> " where p.dbID = :id")
>>> })
>>> @Table(name="Property")
>>> public class Property implements Serializable {
>>>
>>> private static final long serialVersionUID = -6988886476498387460L;
>>>
>>> private String dbID;
>>> private String property;
>>> private String value;
>>> private Element element;
>>> private ElementTemplate elementTemplate;
>>>
>>> /**
>>> * This is the default constructor.
>>> */
>>> public Property() {
>>> }
>>>
>>> /**
>>> * Set the property dbID.
>>> *
>>> * @param String dbID
>>> */
>>> public void setDbID(String dbID) {
>>> this.dbID = dbID;
>>> }
>>>
>>> /**
>>> * Get the property dbID.
>>> *
>>> * @return
>>> */
>>> @Id
>>> @GeneratedValue(strategy=GenerationType.AUTO, generator="uuid-hex")
>>> public String getDbID() {
>>> return this.dbID;
>>> }
>>>
>>> /**
>>> * Set the property property
>>> *
>>> * @param String property
>>> */
>>> public void setProperty(String property) {
>>> this.property = property;
>>> }
>>>
>>> /**
>>> * Get the property property.
>>> *
>>> * @return String
>>> */
>>> public String getProperty() {
>>> return property;
>>> }
>>>
>>> /**
>>> * Set the property value.
>>> *
>>> * @param String value
>>> */
>>> public void setValue(String value) {
>>> this.value = value;
>>> }
>>>
>>> /**
>>> * Get the property value.
>>> *
>>> * @return String
>>> */
>>> public String getValue() {
>>> return value;
>>> }
>>>
>>> /**
>>> * Set property element.
>>> *
>>> * @param Element element
>>> */
>>> public void setElement(Element element) {
>>> this.element = element;
>>> }
>>>
>>> /**
>>> * Get the property element.
>>> *
>>> * @return Element
>>> */
>>> @ManyToOne(fetch=FetchType.LAZY)
>>> @ForeignKey(name="FK_property_element")
>>> @JoinColumn(name="element")
>>> public Element getElement() {
>>> return element;
>>> }
>>>
>>> /**
>>> * Set the property elementTemplate.
>>> *
>>> * @param ElementTemplate elementTemplate
>>> */
>>> public void setElementTemplate(ElementTemplate elementTemplate) {
>>> this.elementTemplate = elementTemplate;
>>> }
>>>
>>> /**
>>> * Get the property elementTemplate.
>>> *
>>> * @return ElementTemplate
>>> */
>>> @ManyToOne(fetch=FetchType.LAZY)
>>> @ForeignKey(name="FK_property_elementTemplate")
>>> @JoinColumn(name="elementTemplate")
>>> public ElementTemplate getElementTemplate() {
>>> return elementTemplate;
>>> }
>>>
>>> }
>>>
>>> to update the element I do this:
>>> Element element = em.find(Element.class, elementID);
>>>
>>> //Add changements to the element
>>>
>>>
>>> // update the element.
>>> em.persist(element);
>>>
>>> The update worked but I don't see any version number in my database
>>> field.
>>>
>>> Please help :)
>>>
>>>
>>> --
>>> View this message in context:
>>> http://n2.nabble.com/Version-annotation-tp4013067p4013067.html
>>> Sent from the OpenJPA Users mailing list archive at Nabble.com.
>>>
>>>
>>>
>>>
>>
>> Craig L Russell
>> Architect, Sun Java Enterprise System http://db.apache.org/jdo
>> 408 276-5638 mailto:[email protected]
>> P.S. A good JDO? O, Gasp!
>>
>>
>>
>>
>
>
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