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!
>
>
>
>
--
View this message in context:
http://n2.nabble.com/Version-annotation-tp4013067p4017236.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
