com.whitestein.lsps.engine.state.ser

Class SNullValue

java.lang.Object

com.whitestein.lsps.engine.state.ser.SNullValue

All Implemented Interfaces:

UnmarshalCallback, SSimpleValue, SValue, SXmlEntity

public class SNullValue
extends Object
implements SSimpleValue

Persistent value representing null.

Author:

rba

Field Summary

Fields

Modifier and Type	Field and Description
static SNullValue	NULL Null value.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SNullValue() Creates empty instance.

Method Summary

Modifier and Type	Method and Description
void	postUnmarshal(javax.xml.bind.Unmarshaller unmarshaller, Object parent) Callback method invoked after unmarshalling XML data into target.
void	preUnmarshal(javax.xml.bind.Unmarshaller unmarshaller, Object parent) Callback method invoked before unmarshalling into target.
String	toString()
SimpleValue	toValue(ModelInstance modelInstance) Creates a real value.

Methods inherited from class java.lang.Object

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

Field Detail

NULL

public static final SNullValue NULL

Null value.

Constructor Detail

SNullValue

protected SNullValue()

Creates empty instance.

Method Detail

preUnmarshal

public void preUnmarshal(javax.xml.bind.Unmarshaller unmarshaller,
                         Object parent)

Description copied from interface: UnmarshalCallback

Callback method invoked before unmarshalling into target.

This method is invoked immediately after target was created and before the unmarshalling of this object begins.

Specified by:

preUnmarshal in interface UnmarshalCallback

parent - instance of JAXB mapped class that will eventually reference target. null when target is root element.

postUnmarshal

public void postUnmarshal(javax.xml.bind.Unmarshaller unmarshaller,
                          Object parent)

Description copied from interface: UnmarshalCallback

Callback method invoked after unmarshalling XML data into target.

This method is invoked after all the properties (except IDREF) are unmarshalled into target, but before target is set into its parent object.

Specified by:

postUnmarshal in interface UnmarshalCallback

parent - instance of JAXB mapped class that will reference target. null when target is root element.

toString

public String toString()

Overrides:

toString in class Object

toValue

public SimpleValue toValue(ModelInstance modelInstance)

Description copied from interface: SValue

Creates a real value.

Specified by:

toValue in interface SSimpleValue

Specified by:

toValue in interface SValue

Returns:

a value