internal protected override bool TryCreate(MetaElementType elementType, out ReadElement element)
{
switch (elementType)
{
case MetaElementType.Field:
FieldReadElement fieldReadElement = new FieldReadElement();
fieldList.Add(fieldReadElement);
element = fieldReadElement;
return(true);
case MetaElementType.Sequence:
SequenceReadElement sequenceReadElement = new SequenceReadElement();
sequenceList.Add(sequenceReadElement);
element = sequenceReadElement;
return(true);
case MetaElementType.Substitution:
SubstitutionReadElement substitutionReadElement = new SubstitutionReadElement();
substitutionList.Add(substitutionReadElement);
element = substitutionReadElement;
return(true);
default:
element = null;
return(false);
}
}
protected virtual bool ResolveFields(FtMeta meta, out string errorDescription)
{
FieldSorter.Rec[] sorterRecArray = new FieldSorter.Rec[fieldList.Count];
FieldReadElement[] sortedElements;
for (int i = 0; i < fieldList.Count; i++)
{
FieldReadElement element = fieldList[i];
sorterRecArray[i].Target = element;
sorterRecArray[i].Implicit = i;
sorterRecArray[i].Explicit = element.ExplicitIndex;
}
int duplicateExplicitIndex;
if (!FieldSorter.TrySort(sorterRecArray, out sortedElements, out duplicateExplicitIndex))
{
errorDescription = string.Format(Properties.Resources.FieldedTextReadElement_ResolveFields_DuplicateExplicitIndexInFields, duplicateExplicitIndex);
return(false);
}
else
{
errorDescription = "";
bool result = true;
for (int i = 0; i < sortedElements.Length; i++)
{
FieldReadElement element = sortedElements[i];
FtMetaField field = meta.FieldList.New(element.DataType);
if (!element.ResolveTo(field, out errorDescription))
{
result = false;
break;
}
}
return(result);
}
}
