com.klg.jclass.util.value
Class AbstractValueModel

java.lang.Object
  |
  +--com.klg.jclass.util.value.AbstractValueModel

All Implemented Interfaces:

JCValueModel, Serializable

Direct Known Subclasses:

AbstractBindingValueModel, BigDecimalValueModel, BooleanValueModel, ByteValueModel, CalendarValueModel, DateValueModel, DoubleValueModel, FloatValueModel, IntegerValueModel, IPAddressValueModel, LongValueModel, MutableValueModel, ObjectValueModel, ShortValueModel, SqlDateValueModel, SqlTimestampValueModel, SqlTimeValueModel, StringValueModel

public abstract class AbstractValueModel

extends Object

implements JCValueModel, Serializable

This class is a base class for default value models.

See Also:

Serialized Form

Field Summary

protected com.klg.jclass.util.JCListenerList	listeners A list of value listeners who get notified when the value is about to change or has changed.
protected Object	value The value for this value model.

Constructor Summary

AbstractValueModel()

Method Summary

void	addValueListener(com.klg.jclass.util.value.JCValueListener listener) Adds a listener to listen for changes to the value.
Object	getValue() Returns the internal core value.
abstract Class	getValueClass() Returns the type of the core value.
void	removeValueListener(com.klg.jclass.util.value.JCValueListener listener) Removes a listener that listens for changes to the value.
void	setValue(Object value) Sets the internal core value.
void	setValue(Object value, boolean dontProcessEqualValues) Sets the internal core value but optionally exits before setting the value (after the valueChanging but before the valueChanged event) if the new and old values are equal.

Methods inherited from class java.lang.Object

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

Field Detail

value

protected Object value

The value for this value model.

listeners

protected com.klg.jclass.util.JCListenerList listeners

A list of value listeners who get notified when the value is about to change or has changed.

Constructor Detail

AbstractValueModel

public AbstractValueModel()

Method Detail

addValueListener

public void addValueListener(com.klg.jclass.util.value.JCValueListener listener)

Adds a listener to listen for changes to the value.

Specified by:

addValueListener in interface JCValueModel

Parameters:

listener - The listener to add

removeValueListener

public void removeValueListener(com.klg.jclass.util.value.JCValueListener listener)

Removes a listener that listens for changes to the value.

Specified by:

removeValueListener in interface JCValueModel

Parameters:

listener - The listener to remove

setValue

public void setValue(Object value)

Sets the internal core value. Calls setValue(value, true). In other words, dontProcessEqualValues is set to true.

Specified by:

setValue in interface JCValueModel

Parameters:

value - The new value

setValue

public void setValue(Object value,
                     boolean dontProcessEqualValues)

Sets the internal core value but optionally exits before setting the value (after the valueChanging but before the valueChanged event) if the new and old values are equal.

Specified by:

setValue in interface JCValueModel

Parameters:

value - The new value

dontProcessEqualValues - If true and the new value is the same object as the new value, don't send any events (i.e. don't go thru the valueChanging and valueChanged process).

getValue

public Object getValue()

Returns the internal core value.

Specified by:

getValue in interface JCValueModel

Returns:

The current value

getValueClass

public abstract Class getValueClass()

Returns the type of the core value. It is necessary to store the class of the value separate from the object since if the value object is null then the class information is lost.

Specified by:

getValueClass in interface JCValueModel

Returns:

The class of the value for this value model