it.amattioli.dominate
Class EntityImpl

Show UML class diagram

java.lang.Object
  it.amattioli.dominate.EntityImpl

All Implemented Interfaces:

Entity<Long>, OptLockEntity<Long>, PropertyChangeEmitter

public class EntityImpl
extends Object
implements OptLockEntity<Long>, PropertyChangeEmitter

Typical implementation of an entity object whose identifier is a Long value.

This implementation can be used, for example, as a base class for object persisted on a relational database and whose primary key is generated using a sequence or an id field.

It has optimistic lock version property and property change support too

Author:

a.mattioli

Constructor Summary

EntityImpl()

Method Summary

void	addPropertyChangeListener(PropertyChangeListener listener)
boolean	equals(Object obj) Two entities are equals if they have the same id and their classes are compatible.
protected void	firePropertyChange(String propertyName, Object oldValue, Object newValue)
Long	getId() Returns this entity object identifier.
Long	getVersion()
int	hashCode() Calculate this entity object hash code using its id
void	removePropertyChangeListener(PropertyChangeListener listener)
void	setId(Long id) Sets this entity object identifier.
void	setVersion(Long version)
String	toString() Return a string containing class name, id and version of the entity

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityImpl

public EntityImpl()

Method Detail

getId

public Long getId()

Description copied from interface: Entity

Returns this entity object identifier.

Specified by:

getId in interface Entity<Long>

Returns:

this entity object identifier

setId

public void setId(Long id)

Description copied from interface: Entity

Sets this entity object identifier.

Specified by:

setId in interface Entity<Long>

Parameters:

id - the identifier to be set

getVersion

public Long getVersion()

Specified by:

getVersion in interface OptLockEntity<Long>

setVersion

public void setVersion(Long version)

Specified by:

setVersion in interface OptLockEntity<Long>

equals

public boolean equals(Object obj)

Two entities are equals if they have the same id and their classes are compatible.

Overrides:

equals in class Object

Parameters:

obj - the object with which to compare

Returns:

true if this object is equal to obj, false otherwise

See Also:

Object.equals(Object)

hashCode

public int hashCode()

Calculate this entity object hash code using its id

Overrides:

hashCode in class Object

Returns:

this entity object hash code

See Also:

Object.hashCode()

toString

public String toString()

Return a string containing class name, id and version of the entity

Overrides:

toString in class Object

Returns:

a string containing class name, id and version of the entity

firePropertyChange

protected void firePropertyChange(String propertyName,
                                  Object oldValue,
                                  Object newValue)

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Specified by:

addPropertyChangeListener in interface PropertyChangeEmitter

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

Specified by:

removePropertyChangeListener in interface PropertyChangeEmitter