//-----------------------------------------------
// Indexes
//-----------------------------------------------
/// <summary>
/// If an index having the specified Id has already been created over the "context" document, then return it
/// in "index" and return true. Otherwise, create a new, empty index and return false.
/// </summary>
public bool FindIndex(XPathNavigator context, int indexId, out XmlILIndex index)
{
XPathNavigator navRoot;
ArrayList docIndexes;
Debug.Assert(context != null);
// Get root of document
navRoot = context.Clone();
navRoot.MoveToRoot();
// Search pre-existing indexes in order to determine whether the specified index has already been created
if (_indexes != null && indexId < _indexes.Length)
{
docIndexes = (ArrayList)_indexes[indexId];
if (docIndexes != null)
{
// Search for an index defined over the specified document
for (int i = 0; i < docIndexes.Count; i += 2)
{
// If we find a matching document, then return the index saved in the next slot
if (((XPathNavigator)docIndexes[i]).IsSamePosition(navRoot))
{
index = (XmlILIndex)docIndexes[i + 1];
return(true);
}
}
}
}
// Return a new, empty index
index = new XmlILIndex();
return(false);
}
/// <summary>
/// Add a newly built index over the specified "context" document to the existing collection of indexes.
/// </summary>
public void AddNewIndex(XPathNavigator context, int indexId, XmlILIndex index)
{
XPathNavigator navRoot;
ArrayList docIndexes;
Debug.Assert(context != null);
// Get root of document
navRoot = context.Clone();
navRoot.MoveToRoot();
// Ensure that a slot exists for the new index
if (_indexes == null)
{
_indexes = new ArrayList[indexId + 4];
}
else if (indexId >= _indexes.Length)
{
// Resize array
ArrayList[] indexesNew = new ArrayList[indexId + 4];
Array.Copy(_indexes, indexesNew, _indexes.Length);
_indexes = indexesNew;
}
docIndexes = (ArrayList)_indexes[indexId];
if (docIndexes == null)
{
docIndexes = new ArrayList();
_indexes[indexId] = docIndexes;
}
docIndexes.Add(navRoot);
docIndexes.Add(index);
}
/// <summary>
/// Add a newly built index over the specified "context" document to the existing collection of indexes.
/// </summary>
public void AddNewIndex(XPathNavigator context, int indexId, XmlILIndex index) {
XPathNavigator navRoot;
ArrayList docIndexes;
Debug.Assert(context != null);
// Get root of document
navRoot = context.Clone();
navRoot.MoveToRoot();
// Ensure that a slot exists for the new index
if (this.indexes == null) {
this.indexes = new ArrayList[indexId + 4];
}
else if (indexId >= this.indexes.Length) {
// Resize array
ArrayList[] indexesNew = new ArrayList[indexId + 4];
Array.Copy(this.indexes, 0, indexesNew, 0, this.indexes.Length);
this.indexes = indexesNew;
}
docIndexes = (ArrayList) this.indexes[indexId];
if (docIndexes == null) {
docIndexes = new ArrayList();
this.indexes[indexId] = docIndexes;
}
docIndexes.Add(navRoot);
docIndexes.Add(index);
}
//-----------------------------------------------
// Indexes
//-----------------------------------------------
/// <summary>
/// If an index having the specified Id has already been created over the "context" document, then return it
/// in "index" and return true. Otherwise, create a new, empty index and return false.
/// </summary>
public bool FindIndex(XPathNavigator context, int indexId, out XmlILIndex index) {
XPathNavigator navRoot;
ArrayList docIndexes;
Debug.Assert(context != null);
// Get root of document
navRoot = context.Clone();
navRoot.MoveToRoot();
// Search pre-existing indexes in order to determine whether the specified index has already been created
if (this.indexes != null && indexId < this.indexes.Length) {
docIndexes = (ArrayList) this.indexes[indexId];
if (docIndexes != null) {
// Search for an index defined over the specified document
for (int i = 0; i < docIndexes.Count; i += 2) {
// If we find a matching document, then return the index saved in the next slot
if (((XPathNavigator) docIndexes[i]).IsSamePosition(navRoot)) {
index = (XmlILIndex) docIndexes[i + 1];
return true;
}
}
}
}
// Return a new, empty index
index = new XmlILIndex();
return false;
}
