org.joda.property.impl.data
Class UnmodifiablePropertyData

java.lang.Object
  |
  +--org.joda.property.impl.data.AbstractPropertyData
        |
        +--org.joda.property.impl.data.UnmodifiablePropertyData

All Implemented Interfaces:

InitializablePropertyData, PropertyData, java.io.Serializable

public abstract class UnmodifiablePropertyData

extends AbstractPropertyData

Derived property data implementation which gets a piece of unmodifiable data.

Subclasses will typically derive their data from other properties on the parent Property. To fire the correct events when those properties change, call addDependentOn() from the initParentCreated() method.

Author:

Stephen Colebourne

See Also:

Serialized Form

Constructor Summary

UnmodifiablePropertyData()
Constructor

Method Summary

void	addDependentOn(Property property) Add a property that this property is dependent on.
abstract java.lang.Object	get() Get the value of the property.
boolean	isModifiable() Is the property currently modifiable.
boolean	isReadOnly() Is the property permanently unmodifiable.
void	set(java.lang.Object obj) Set the value of the property.
void	setModifiable(boolean modifiable) Set the flag to indicate if the object is currently modifiable.
void	setReadOnly() Set the property permanently unmodifiable.

Methods inherited from class org.joda.property.impl.data.AbstractPropertyData

addPropertyChangeListener, bean, firePropertyChange, firePropertyChange, initPropertyDataCreated, property, removePropertyChangeListener, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.joda.property.impl.PropertyData

equals, hashCode

Constructor Detail

UnmodifiablePropertyData

public UnmodifiablePropertyData()

Constructor

Method Detail

addDependentOn

public void addDependentOn(Property property)

Add a property that this property is dependent on. This should be called from initBeanCreated(), not initPropertyCreated().

Parameters:

property - the property that this depends on

get

public abstract java.lang.Object get()

Get the value of the property.

Returns:

the object value of the property

set

public final void set(java.lang.Object obj)

Description copied from interface: PropertyData

Set the value of the property. The object type should be appropriate for the type of property.

Parameters:

obj - an Object to store

See Also:

PropertyData.setModifiable(boolean)

isModifiable

public final boolean isModifiable()

Description copied from interface: PropertyData

Is the property currently modifiable.

Returns:

true if the property value can currently be changed

See Also:

PropertyData.isModifiable()

setModifiable

public final void setModifiable(boolean modifiable)

Description copied from interface: PropertyData

Set the flag to indicate if the object is currently modifiable.

Parameters:

modifiable - true if object should be modifiable

See Also:

PropertyData.setModifiable(boolean)

isReadOnly

public final boolean isReadOnly()

Description copied from interface: PropertyData

Is the property permanently unmodifiable.

Returns:

true if the property value can never be modified

See Also:

PropertyData.isReadOnly()

setReadOnly

public final void setReadOnly()

Description copied from interface: PropertyData

Set the property permanently unmodifiable.

See Also:

PropertyData.setReadOnly()