public static VersionValue GetUnsavedVersionValue(
String versionUnsavedValue,
IGetter versionGetter,
IVersionType versionType,
ConstructorInfo constructor)
{
if (versionUnsavedValue == null)
{
if (constructor != null)
{
object defaultValue = versionGetter.Get(Instantiate(constructor));
if (defaultValue != null && defaultValue.GetType().IsValueType)
{
return(new VersionValue(defaultValue));
}
else
{
// if the version of a newly instantiated object is not the same
// as the version seed value, use that as the unsaved-value
return
(versionType.IsEqual(versionType.Seed(null), defaultValue)
? VersionValue.VersionUndefined
: new VersionValue(defaultValue));
}
}
else
{
return(VersionValue.VersionUndefined);
}
}
else if ("undefined" == versionUnsavedValue)
{
return(VersionValue.VersionUndefined);
}
else if ("null" == versionUnsavedValue)
{
return(VersionValue.VersionSaveNull);
}
else if ("negative" == versionUnsavedValue)
{
return(VersionValue.VersionNegative);
}
else
{
// NHibernate-specific
try
{
return(new VersionValue(versionType.FromStringValue(versionUnsavedValue)));
}
catch (InvalidCastException ice)
{
throw new MappingException("Bad version type: " + versionType.Name, ice);
}
catch (Exception e)
{
throw new MappingException("Could not parse version unsaved-value: " + versionUnsavedValue, e);
}
}
}
public static VersionValue GetUnsavedVersionValue(
String versionUnsavedValue,
IGetter versionGetter,
IVersionType versionType,
ConstructorInfo constructor)
{
if (versionUnsavedValue == null)
{
if (constructor != null)
{
object defaultValue = versionGetter.Get(Instantiate(constructor));
if (defaultValue != null && defaultValue.GetType().IsValueType)
return new VersionValue(defaultValue);
else
{
// if the version of a newly instantiated object is not the same
// as the version seed value, use that as the unsaved-value
return
versionType.IsEqual(versionType.Seed(null), defaultValue)
? VersionValue.VersionUndefined
: new VersionValue(defaultValue);
}
}
else
{
return VersionValue.VersionUndefined;
}
}
else if ("undefined" == versionUnsavedValue)
{
return VersionValue.VersionUndefined;
}
else if ("null" == versionUnsavedValue)
{
return VersionValue.VersionSaveNull;
}
else if ("negative" == versionUnsavedValue)
{
return VersionValue.VersionNegative;
}
else
{
// NHibernate-specific
try
{
return new VersionValue(versionType.FromStringValue(versionUnsavedValue));
}
catch (InvalidCastException ice)
{
throw new MappingException("Bad version type: " + versionType.Name, ice);
}
catch (Exception e)
{
throw new MappingException("Could not parse version unsaved-value: " + versionUnsavedValue, e);
}
}
}
