net.sf.cuf.model

Class ValueHolder<T>

java.lang.Object

net.sf.cuf.model.AbstractValueModel<T>

net.sf.cuf.model.ValueHolder<T>

Type Parameters:

T - the type of the value we hold

All Implemented Interfaces:

DelegateAccess, ExternalUpdate, ValueModel<T>

public class ValueHolder<T>
extends AbstractValueModel<T>
implements ValueModel<T>, DelegateAccess

A ValueHolder object holds a value (any Object). The value can be changed via setValue() and accessed vai getValue(). Whenever the value changes, all interested listeners are notified.

Constructor Summary

Constructors

Constructor and Description
ValueHolder() Create a new holder with NULL as its value.
ValueHolder(T pValue) Create a new holder with the handed object as its value.

Method Summary

Methods

Modifier and Type	Method and Description
T	getValue() Get the current value, during a callback this is the new value.
Object	getValue(Object pValue) Transform the handed value to a new value.
boolean	isEditable() Returns always true
void	setValue(T pValue, boolean pIsSetForced) Set a new value, this will fire a ChangeEvent if the new value is different from the old value.

Methods inherited from class net.sf.cuf.model.AbstractValueModel

addChangeListener, booleanValue, checkDisposed, dispose, doubleValue, fireStateChanged, floatValue, getDependents, getName, intValue, isDisposed, isInSetValue, isSetForced, longValue, onChangeSend, removeChangeListener, retractInterestsFor, setInSetValue, setName, setObjectValue, setValue, setValue, setValue, setValue, setValue, setValue, setValueForced, signalExternalUpdate, stringValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.cuf.model.ValueModel

addChangeListener, booleanValue, dispose, doubleValue, floatValue, getDependents, getName, intValue, isDisposed, isSetForced, longValue, onChangeSend, removeChangeListener, retractInterestsFor, setName, setObjectValue, setValue, setValue, setValue, setValue, setValue, setValue, setValueForced, stringValue

Constructor Detail

ValueHolder

public ValueHolder()

Create a new holder with NULL as its value.

ValueHolder

public ValueHolder(T pValue)

Create a new holder with the handed object as its value.

Parameters:

pValue - the value we hold, may be null

Method Detail

isEditable

public boolean isEditable()

Returns always true

Specified by:

isEditable in interface ValueModel<T>

Returns:

true

setValue

public void setValue(T pValue,
            boolean pIsSetForced)

Set a new value, this will fire a ChangeEvent if the new value is different from the old value.

Specified by:

setValue in interface ValueModel<T>

Parameters:

pValue - the new value (null is o.k.)

pIsSetForced - true if a forced setValue should be done

getValue

public T getValue()

Get the current value, during a callback this is the new value.

Specified by:

getValue in interface ValueModel<T>

Returns:

null or the value object

getValue

public Object getValue(Object pValue)

Transform the handed value to a new value. This should not change the current value or trigger any updates.

Specified by:

getValue in interface DelegateAccess

Parameters:

pValue - the value we should assume as our value

Returns:

pValue