eu.etaxonomy.cdm.model.common
Class VersionableEntity

java.lang.Object
  eu.etaxonomy.cdm.model.common.CdmBase
      eu.etaxonomy.cdm.model.common.VersionableEntity

Type Parameters:

T -

All Implemented Interfaces:

ICdmBase, IVersionableEntity, Serializable, Cloneable

Direct Known Subclasses:

Address, AnnotatableEntity, Extension, FeatureNode, GenBankAccession, InstitutionalMembership, KeyStatement, Locus, Marker, MediaRepresentation, MediaRepresentationPart, PolytomousKeyNode, ReferenceIdentity, StateData, StatisticalMeasurementValue

@MappedSuperclass
public abstract class VersionableEntity
extends CdmBase
implements IVersionableEntity

The class keeps track of versions via a full linked list to different version objects, or a simple updated/updatedBy property in the same object. Full versioning allows concrete subclasses to keep track of previous or later versions of an object. A different version is another (persistent) java object, but with the same UUID. The version history is established as a linked list of the version objects in time. If versioning via the linked list is used, updated/updatedBy is the same as created/createdBy (better NULL?). Versioning can be turned off and in this case this class provides updated/updatedBy to keep track of the latest change event.

Author:

m.doering

See Also:

Serialized Form

Field Summary

Fields inherited from class eu.etaxonomy.cdm.model.common.CdmBase

uuid

Constructor Summary

VersionableEntity()

Method Summary

Object	clone() Clones this versionable entity.
boolean	equals(Object obj) Is true if UUID and created timestamp are the same for the passed Object and this one.
org.joda.time.DateTime	getUpdated()
User	getUpdatedBy()
void	setUpdated(org.joda.time.DateTime updated)
void	setUpdatedBy(User updatedBy)

Methods inherited from class eu.etaxonomy.cdm.model.common.CdmBase

addPropertyChangeListener, addPropertyChangeListener, clone, deproxy, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getCreated, getCreatedBy, getId, getUuid, hashCode, hasListeners, instanceToString, invokeSetMethod, invokeSetMethodWithNull, isInstanceOf, removePropertyChangeListener, removePropertyChangeListener, setCreated, setCreatedBy, setId, setUuid, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface eu.etaxonomy.cdm.model.common.ICdmBase

getCreated, getCreatedBy, getId, getUuid, setCreated, setCreatedBy, setId, setUuid

Constructor Detail

VersionableEntity

public VersionableEntity()

Method Detail

getUpdatedBy

public User getUpdatedBy()

Specified by:

getUpdatedBy in interface IVersionableEntity

setUpdatedBy

public void setUpdatedBy(User updatedBy)

Specified by:

setUpdatedBy in interface IVersionableEntity

Parameters:

updatedBy - updatedBy

getUpdated

public org.joda.time.DateTime getUpdated()

Specified by:

getUpdated in interface IVersionableEntity

Returns:

setUpdated

public void setUpdated(org.joda.time.DateTime updated)

Specified by:

setUpdated in interface IVersionableEntity

Parameters:

updated - updated

equals

public boolean equals(Object obj)

Is true if UUID and created timestamp are the same for the passed Object and this one.

Overrides:

equals in class CdmBase

See Also:

See {@link http://www.hibernate.org/109.html hibernate109}, {@link http://www.geocities.com/technofundo/tech/java/equalhash.html geocities} or {@link http://www.ibm.com/developerworks/java/library/j-jtp05273.html ibm} for more information about equals and hashcode.

clone

public Object clone()
             throws CloneNotSupportedException

Clones this versionable entity. Set fields for nextVersion, previousVersion, updated, updatedBy and createdBy are set to null The id is set to 0. The uuid is created new. The createdWhen is set to the current date.

Overrides:

clone in class CdmBase

Throws:

CloneNotSupportedException

See Also:

Object.clone()