Package org.openstreetmap.josm.data.preferences

Class CachedProperty<T>

java.lang.Object

org.openstreetmap.josm.data.preferences.AbstractProperty<T>

org.openstreetmap.josm.data.preferences.CachedProperty<T>

Type Parameters:

T - The value type of this property

All Implemented Interfaces:

PreferenceChangedListener

public abstract class CachedProperty<T>
extends AbstractProperty<T>
implements PreferenceChangedListener

This is an old-style cached preference value. You can replace this using the AbstractProperty.cached(), AbstractProperty.cached() accessors

Nested Class Summary

Nested classes/interfaces inherited from class org.openstreetmap.josm.data.preferences.AbstractProperty

AbstractProperty.InvalidPreferenceValueException, AbstractProperty.ValueChangeEvent<T>, AbstractProperty.ValueChangeListener<T>

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	defaultValueAsString
private int	updateCount
private T	value

Fields inherited from class org.openstreetmap.josm.data.preferences.AbstractProperty

defaultValue, key, preferences

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CachedProperty(java.lang.String key, java.lang.String defaultValueAsString)

Method Summary

Modifier and Type	Method	Description
protected abstract T	fromString(java.lang.String s)
T	get()	Replies the value of this property.
java.lang.String	getAsString()
T	getDefaultValue()	Replies the default value of this property.
java.lang.String	getDefaultValueAsString()
int	getUpdateCount()
void	preferenceChanged(PreferenceChangeEvent e)	Triggered when a preference entry value changes.
void	put(java.lang.String value)
boolean	put(T value)	Sets this property to the specified value.
protected void	updateValue()

Methods inherited from class org.openstreetmap.josm.data.preferences.AbstractProperty

addListener, addListenerImpl, addWeakListener, cached, equals, getKey, getPreferences, hashCode, isSet, remove, removeListener, removeListenerImpl, storeDefaultValue

Methods inherited from class java.lang.Object

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

Field Detail

defaultValueAsString

private final java.lang.String defaultValueAsString

value

private T value

updateCount

private int updateCount

Constructor Detail

CachedProperty

protected CachedProperty(java.lang.String key,
                         java.lang.String defaultValueAsString)

Method Detail

updateValue

protected final void updateValue()

fromString

protected abstract T fromString(java.lang.String s)

get

public T get()

Description copied from class: AbstractProperty

Replies the value of this property.

Specified by:

get in class AbstractProperty<T>

Returns:

the value of this property

put

public void put(java.lang.String value)

put

public final boolean put(T value)

Description copied from class: AbstractProperty

Sets this property to the specified value.

Specified by:

put in class AbstractProperty<T>

Parameters:

value - The new value of this property

Returns:

true if something has changed (i.e. value is different than before)

getUpdateCount

public int getUpdateCount()

getDefaultValue

public T getDefaultValue()

Description copied from class: AbstractProperty

Replies the default value of this property.

Overrides:

getDefaultValue in class AbstractProperty<T>

Returns:

The default value of this property

getDefaultValueAsString

public java.lang.String getDefaultValueAsString()

getAsString

public java.lang.String getAsString()

preferenceChanged

public void preferenceChanged(PreferenceChangeEvent e)

Description copied from interface: PreferenceChangedListener

Triggered when a preference entry value changes.

Specified by:

preferenceChanged in interface PreferenceChangedListener

Parameters:

e - the preference change event