internal override Querytype getName()
{
if (_VarQuery != null)
{
return(_VarQuery.getName());
}
return(Querytype.None);
}
private IQuery ProcessAxis(Axis root, IQuery qyInput, int parent, Axis.AxisType parentaxis)
{
IQuery result = null;
String URN = String.Empty;
if (root.Prefix.Length > 0)
{
_hasPrefix = true;
}
hasReverseAxis = false;
switch (root.TypeOfAxis)
{
case Axis.AxisType.Ancestor:
result = new XPathAncestorQuery(qyInput, false, root.Name, root.Prefix, URN, root.Type);
_specialAxis = hasReverseAxis = true;
break;
case Axis.AxisType.AncestorOrSelf:
result = new XPathAncestorQuery(qyInput, true, root.Name, root.Prefix, URN, root.Type);
_specialAxis = hasReverseAxis = true;
break;
case Axis.AxisType.Child:
if (_slashslash)
{
result = new XPathDescendantQuery(qyInput, false, root.Name, root.Prefix, URN, root.Type, abbrAxis);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int)Querytype.Self))
{
result = new CacheQuery(result);
}
_slashslash = false;
_specialAxis = true;
break;
}
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int)Querytype.Self))
{
result = new CacheChildrenQuery(qyInput, root.Name, root.Prefix, URN, root.Type);
}
else
{
result = new ChildrenQuery(qyInput, root.Name, root.Prefix, URN, root.Type);
}
break;
case Axis.AxisType.Parent:
result = new ParentQuery(qyInput, root.Name, root.Prefix, URN, root.Type);
break;
case Axis.AxisType.Descendant:
switch (parent)
{
case Smart_D:
result = new SmartXPathDescendantQuery(qyInput, false, root.Name, root.Prefix, URN, root.Type);
break;
case Regular_D:
result = new XPathDescendantQuery(qyInput, false, root.Name, root.Prefix, URN, root.Type);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int)Querytype.Self))
{
result = new CacheQuery(result);
}
_specialAxis = true;
break;
}
break;
case Axis.AxisType.DescendantOrSelf:
switch (parent)
{
case Smart_D:
result = new SmartXPathDescendantQuery(qyInput, true, root.Name, root.Prefix, URN, root.Type, root.abbrAxis);
break;
case Regular_D:
if (_smart <= 1 || root.Type != XPathNodeType.All ||
parentaxis != Axis.AxisType.Child)
{
result = new XPathDescendantQuery(
qyInput,
true,
root.Name,
root.Prefix,
URN,
root.Type,
root.abbrAxis);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int)Querytype.Self))
{
result = new CacheQuery(result);
}
_specialAxis = true;
}
else
{
_slashslash = true;
abbrAxis = root.abbrAxis;
result = qyInput;
}
break;
}
break;
case Axis.AxisType.Preceding:
result = new PrecedingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
_specialAxis = hasReverseAxis = true;
break;
case Axis.AxisType.Following:
result = new FollowingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
_specialAxis = true;
break;
case Axis.AxisType.FollowingSibling:
result = new FollSiblingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int)Querytype.Self))
{
result = new DocumentOrderQuery(result);
}
break;
case Axis.AxisType.PrecedingSibling:
result = new PreSiblingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
hasReverseAxis = true;
break;
case Axis.AxisType.Attribute:
result = new AttributeQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
break;
case Axis.AxisType.Self:
result = new XPathSelfQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
break;
case Axis.AxisType.Namespace:
if (
(root.Type == XPathNodeType.All || root.Type == XPathNodeType.Element || root.Type == XPathNodeType.Attribute) &&
root.Prefix == string.Empty
)
{
result = new NamespaceQuery(qyInput, root.Name, root.Prefix, URN, root.Type);
}
else
{
result = new EmptyNamespaceQuery();
}
break;
default:
throw new XPathException(Res.Xp_NotSupported, _query);
}
return(result);
}
protected XPathNavigator MatchNode(XPathNavigator current, IQuery query)
{
XPathNavigator context;
if (current != null)
{
context = query.MatchNode(current);
if (context != null)
{
if (_opnd.ReturnType() == XPathResultType.Number)
{
if (_opnd.getName() == Querytype.Constant)
{
XPathNavigator result = current.Clone();
int i = 0;
if (query.getName() == Querytype.Child)
{
result.MoveToParent();
result.MoveToFirstChild();
while (true)
{
if (((ChildrenQuery)query).matches(result))
{
i++;
if (current.IsSamePosition(result))
{
if (XmlConvert.ToXPathDouble(_opnd.getValue(current, null)) == i)
{
return(context);
}
else
{
return(null);
}
}
}
if (!result.MoveToNext())
{
return(null);
}
}
}
if (query.getName() == Querytype.Attribute)
{
result.MoveToParent();
result.MoveToFirstAttribute();
while (true)
{
if (((AttributeQuery)query).matches(result))
{
i++;
}
if (current.IsSamePosition(result))
{
if (XmlConvert.ToXPathDouble(_opnd.getValue(current, null)) == i)
{
return(context);
}
else
{
return(null);
}
}
if (!result.MoveToNextAttribute())
{
return(null);
}
}
}
}
else
{
setContext(context.Clone());
XPathNavigator result = advance();
while (result != null)
{
if (result.IsSamePosition(current))
{
return(context);
}
result = advance();
}
}
}
if (_opnd.ReturnType() == XPathResultType.NodeSet)
{
_opnd.setContext(current);
if (_opnd.advance() != null)
{
return(context);
}
else
{
return(null);
}
}
if (_opnd.ReturnType() == XPathResultType.Boolean)
{
if (noPosition)
{
if ((bool)_opnd.getValue(current, null))
{
return(context);
}
return(null);
}
setContext(context.Clone());
XPathNavigator result = advance();
while (result != null)
{
if (result.IsSamePosition(current))
{
return(context);
}
result = advance();
}
return(null);
}
if (_opnd.ReturnType() == XPathResultType.String)
{
if (_opnd.getValue(context, null).ToString().Length > 0)
{
return(context);
}
else
{
return(null);
}
}
}
else
{
return(null);
}
}
return(null);
}
protected XPathNavigator MatchNode(XPathNavigator current, IQuery query) {
XPathNavigator context;
if (current != null) {
context = query.MatchNode(current);
if (context != null) {
if (_opnd.ReturnType() == XPathResultType.Number) {
if (_opnd.getName() == Querytype.Constant) {
XPathNavigator result = current.Clone();
int i=0;
if (query.getName() == Querytype.Child) {
result.MoveToParent();
result.MoveToFirstChild();
while (true) {
if (((ChildrenQuery)query).matches(result)){
i++;
if (current.IsSamePosition(result))
if (XmlConvert.ToXPathDouble(_opnd.getValue(current, null)) == i)
return context;
else
return null;
}
if (!result.MoveToNext())
return null;
}
}
if (query.getName() == Querytype.Attribute) {
result.MoveToParent();
result.MoveToFirstAttribute();
while (true) {
if (((AttributeQuery)query).matches(result))
i++;
if (current.IsSamePosition(result))
if (XmlConvert.ToXPathDouble(_opnd.getValue(current, null)) == i)
return context;
else
return null;
if (!result.MoveToNextAttribute())
return null;
}
}
}
else {
setContext(context.Clone());
XPathNavigator result = advance();
while (result != null) {
if (result.IsSamePosition(current))
return context;
result = advance();
}
}
}
if (_opnd.ReturnType() == XPathResultType.NodeSet) {
_opnd.setContext(current);
if (_opnd.advance() != null)
return context;
else
return null;
}
if (_opnd.ReturnType() == XPathResultType.Boolean) {
if (noPosition) {
if ((bool)_opnd.getValue(current, null)) {
return context;
}
return null;
}
setContext(context.Clone());
XPathNavigator result = advance();
while (result != null) {
if (result.IsSamePosition(current))
return context;
result = advance();
}
return null;
}
if (_opnd.ReturnType() == XPathResultType.String)
if (_opnd.getValue(context, null).ToString().Length >0)
return context;
else
return null;
}
else
return null;
}
return null;
}
private IQuery ProcessAxis(Axis root , IQuery qyInput, int parent, Axis.AxisType parentaxis) {
IQuery result = null;
String URN = String.Empty;
if ( root.Prefix.Length > 0) {
_hasPrefix = true;
}
hasReverseAxis = false;
switch (root.TypeOfAxis) {
case Axis.AxisType.Ancestor:
result = new XPathAncestorQuery( qyInput , false, root.Name, root.Prefix, URN, root.Type );
_specialAxis = hasReverseAxis = true;
break;
case Axis.AxisType.AncestorOrSelf:
result = new XPathAncestorQuery( qyInput, true, root.Name, root.Prefix, URN, root.Type );
_specialAxis = hasReverseAxis = true;
break;
case Axis.AxisType.Child:
if (_slashslash){
result = new XPathDescendantQuery( qyInput, false, root.Name, root.Prefix, URN, root.Type, abbrAxis);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int) Querytype.Self)) {
result = new CacheQuery(result);
}
_slashslash = false;
_specialAxis = true;
break;
}
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int) Querytype.Self))
result = new CacheChildrenQuery( qyInput, root.Name, root.Prefix, URN, root.Type );
else
result = new ChildrenQuery( qyInput, root.Name, root.Prefix, URN, root.Type );
break;
case Axis.AxisType.Parent:
result = new ParentQuery( qyInput, root.Name, root.Prefix, URN, root.Type );
break;
case Axis.AxisType.Descendant:
switch (parent) {
case Smart_D :
result = new SmartXPathDescendantQuery( qyInput, false, root.Name, root.Prefix, URN, root.Type);
break;
case Regular_D :
result = new XPathDescendantQuery(qyInput, false, root.Name, root.Prefix, URN, root.Type);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int) Querytype.Self))
result = new CacheQuery(result);
_specialAxis = true;
break;
}
break;
case Axis.AxisType.DescendantOrSelf:
switch (parent) {
case Smart_D :
result = new SmartXPathDescendantQuery(qyInput, true, root.Name, root.Prefix, URN, root.Type, root.abbrAxis);
break;
case Regular_D :
if ( _smart <= 1 || root.Type != XPathNodeType.All ||
parentaxis != Axis.AxisType.Child) {
result = new XPathDescendantQuery(
qyInput,
true,
root.Name,
root.Prefix,
URN,
root.Type,
root.abbrAxis);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int) Querytype.Self))
result = new CacheQuery(result);
_specialAxis = true;
}
else
{
_slashslash = true;
abbrAxis = root.abbrAxis;
result = qyInput;
}
break;
}
break;
case Axis.AxisType.Preceding:
result = new PrecedingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
_specialAxis = hasReverseAxis = true;
break;
case Axis.AxisType.Following :
result = new FollowingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
_specialAxis = true;
break;
case Axis.AxisType.FollowingSibling :
result = new FollSiblingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
if (_specialAxis || (qyInput != null && (int)qyInput.getName() > (int) Querytype.Self)) {
result = new DocumentOrderQuery(result);
}
break;
case Axis.AxisType.PrecedingSibling :
result = new PreSiblingQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
hasReverseAxis = true;
break;
case Axis.AxisType.Attribute:
result = new AttributeQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
break;
case Axis.AxisType.Self:
result = new XPathSelfQuery(
qyInput,
root.Name,
root.Prefix,
URN,
root.Type);
break;
case Axis.AxisType.Namespace:
if (
(root.Type == XPathNodeType.All || root.Type == XPathNodeType.Element || root.Type == XPathNodeType.Attribute) &&
root.Prefix == string.Empty
) {
result = new NamespaceQuery(qyInput, root.Name, root.Prefix, URN, root.Type);
}
else {
result = new EmptyNamespaceQuery();
}
break;
default:
throw new XPathException(Res.Xp_NotSupported, _query);
}
return result;
}