Module it.tidalwave.ui.core

Package it.tidalwave.ui.core.function

Class WeakCopyFunctionSupport<T>

java.lang.Object

it.tidalwave.ui.core.function.BoundFunctionSupport<T,T>

it.tidalwave.ui.core.function.UnaryBoundFunctionSupport<T,T>

it.tidalwave.ui.core.function.WeakCopyFunctionSupport<T>

All Implemented Interfaces:

ChangingSource<T>, BoundFunction<T,T>, Mutable, Changeable<T>

Direct Known Subclasses:

CopyIfEmptyOrConform

public abstract class WeakCopyFunctionSupport<T>
extends UnaryBoundFunctionSupport<T,T>
implements Changeable<T>

Changes the destination only at a certain condition in function of the target.

Since:

2.0-ALPHA-1

Author:

Fabrizio Giudici

Field Summary

Fields

Modifier and Type	Field	Description
protected T	targetValue

Fields inherited from class it.tidalwave.ui.core.function.UnaryBoundFunctionSupport

value

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	WeakCopyFunctionSupport(ChangingSource<T> source)

Method Summary

Modifier and Type	Method	Description
protected T	function(T value)
protected void	onSourceChange(T oldSourceValue, T newSourceValue)
void	set(T value)	Sets a new value to this object.
protected abstract boolean	shouldChange(T oldValue, T newValue)

Methods inherited from class it.tidalwave.ui.core.function.UnaryBoundFunctionSupport

get

Methods inherited from class it.tidalwave.ui.core.function.BoundFunctionSupport

fireValueChanged, fireValueChanged, unbindAll

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.tidalwave.ui.core.ChangingSource

getPropertyChangeListeners

Methods inherited from interface it.tidalwave.ui.core.Mutable

addListener, addListener1, addListener2, addPropertyChangeListener, addPropertyChangeListener, getPropertyChangeListeners, hasListeners, removeListener, removePropertyChangeListener, removePropertyChangeListener

Field Details

targetValue

@Nonnull
protected T targetValue

Constructor Details

WeakCopyFunctionSupport

protected WeakCopyFunctionSupport(@Nonnull
 ChangingSource<T> source)

Method Details

onSourceChange

protected void onSourceChange(@Nonnull
 T oldSourceValue,
 @Nonnull
 T newSourceValue)

Overrides:

onSourceChange in class UnaryBoundFunctionSupport<T,T>

set

public void set(T value)

Description copied from interface: Changeable

Sets a new value to this object.

Specified by:

set in interface Changeable<T>

Parameters:

value - the new value

shouldChange

protected abstract boolean shouldChange(T oldValue,
 T newValue)

function

@Nonnull
protected T function(@Nonnull
 T value)

Specified by:

function in class UnaryBoundFunctionSupport<T,T>