org.ujoframework.implementation.registrar
Class RegistrarUjoExt<UJO extends RegistrarUjoExt>

java.lang.Object
  org.ujoframework.extensions.AbstractUjo
      org.ujoframework.extensions.AbstractUjoExt<UJO>
          org.ujoframework.implementation.map.MapUjoExt<UJO>
              org.ujoframework.implementation.registrar.RegistrarUjoExt<UJO>

All Implemented Interfaces:

java.io.Serializable, UjoCloneable, UjoExt<UJO>, UjoMiddle<UJO>, UjoTextable, EventRegistrar<UJO>, Ujo

public class RegistrarUjoExt<UJO extends RegistrarUjoExt>
extends MapUjoExt<UJO>
implements EventRegistrar<UJO>

A MapUjoExt implementation with a Property change listener support.
There is possible to implement the EventRegistrar interface very easy to any Ujo implementation by sample:

public class RegistrarUjoExt<UJO extends RegistrarUjoExt> extends MapUjoExt<UJO> implements EventRegistrar<UJO> {
    
  final private UjoPropertyChangeSupport eventRegistrar = new UjoPropertyChangeSupport(this);

  public void writeValue(UjoProperty property, Object value) {
    Object oldValue = readValue(property);
    eventRegistrar.firePropertyChange(property, oldValue, value, true);
    super.writeValue(property, value);
    eventRegistrar.firePropertyChange(property, oldValue, value, false);
  }

  public boolean addPropertyChangeListener
    ( UjoProperty<UJO,?> property
    , Boolean before
    , UjoPropertyChangeListener listener
    ) {
    return eventRegistrar.addPropertyChangeListener(property, before, listener);
  }

  public boolean removePropertyChangeListener
    ( UjoProperty<UJO,?> property
    , Boolean before
    , UjoPropertyChangeListener listener) {
    return eventRegistrar.removePropertyChangeListener(property, before, listener);
  }
}

Since:

ujo-tool

Author:

Pavel Ponec

See Also:

Serialized Form

Field Summary

Fields inherited from class org.ujoframework.implementation.map.MapUjoExt

data

Constructor Summary

RegistrarUjoExt()

Method Summary

boolean	addPropertyChangeListener(UjoProperty<UJO,?> property, java.lang.Boolean before, UjoPropertyChangeListener listener) Add property Listener
boolean	removePropertyChangeListener(UjoProperty<UJO,?> property, java.lang.Boolean before, UjoPropertyChangeListener listener) Remove property Listener
void	writeValue(UjoProperty property, java.lang.Object value) It is a common method for writing all object values, however there is strongly recomended to use a method Property.setValue(org.ujoframework.Ujo, java.lang.Object) to an external access for a better type safe.

Methods inherited from class org.ujoframework.implementation.map.MapUjoExt

newListProperty, newProperty, newProperty, newPropertyList, readValue

Methods inherited from class org.ujoframework.extensions.AbstractUjoExt

add, clone, copyTo, copyTo, createPropertyList, equals, findProperty, get, get, get, get, getItemCount, getText, isDefault, list, remove, remove, set, set, set, set, setText

Methods inherited from class org.ujoframework.extensions.AbstractUjo

equals, init, init, readAuthorization, readProperties, readUjoManager, readValueString, toString, writeValueString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ujoframework.Ujo

readAuthorization, readProperties

Constructor Detail

RegistrarUjoExt

public RegistrarUjoExt()

Method Detail

writeValue

public void writeValue(UjoProperty property,
                       java.lang.Object value)

Description copied from class: MapUjoExt

It is a common method for writing all object values, however there is strongly recomended to use a method Property.setValue(org.ujoframework.Ujo, java.lang.Object) to an external access for a better type safe. The method have got a strategy place for an implementation of several listeners and validators.
NOTE: If property is an incorrect then no exception is throwed.

Specified by:

writeValue in interface Ujo

Overrides:

writeValue in class MapUjoExt<UJO extends RegistrarUjoExt>

Parameters:

property - Property must be a direct type only!

See Also:

Property.setValue(Ujo,Object)

addPropertyChangeListener

public boolean addPropertyChangeListener(UjoProperty<UJO,?> property,
                                         java.lang.Boolean before,
                                         UjoPropertyChangeListener listener)

Add property Listener

Specified by:

addPropertyChangeListener in interface EventRegistrar<UJO extends RegistrarUjoExt>

Parameters:

property - Property

before - The null value means that listener will be called before as well as after reading/writting value to UJO.

listener - Listener

Returns:

A result of the operation

removePropertyChangeListener

public boolean removePropertyChangeListener(UjoProperty<UJO,?> property,
                                            java.lang.Boolean before,
                                            UjoPropertyChangeListener listener)

Remove property Listener

Specified by:

removePropertyChangeListener in interface EventRegistrar<UJO extends RegistrarUjoExt>