private string GetNewValue(Net.Vpc.Upa.Field field) /* throws Net.Vpc.Upa.Exceptions.UPAException */
{
Net.Vpc.Upa.Entity entity = field.GetEntity();
string idName = field.GetName();
Net.Vpc.Upa.Entity seq = entity.GetPersistenceUnit().GetEntity(Net.Vpc.Upa.Impl.PrivateSequence.ENTITY_NAME);
Net.Vpc.Upa.Impl.SequenceManager sm = new Net.Vpc.Upa.Impl.EntitySequenceManager(seq);
string sequenceGroup = Eval(field, this.group, "{#}");
while (true)
{
string nextIdString = Eval(field, this.format, sm.NextValue(name, sequenceGroup, this.initialValue, this.allocationSize));
long count = entity.GetEntityCount(new Net.Vpc.Upa.Expressions.Equals(new Net.Vpc.Upa.Expressions.Var(idName), nextIdString));
if (count == 0)
{
return(nextIdString);
}
}
}
