Namespace Xpath
Class CNodeSet

class CNodeSet: public CInterface {
public:
    CNodeSet();
    virtual ~CNodeSet();
public:
    virtual bool InDocumentOrder() = 0;
    virtual bool InReverseDocumentOrder() = 0;
    virtual int GetSize() = 0;
    virtual XNode GetFirstNode() = 0;
    virtual XIterator CreateIterator() = 0;
    };

The abstract interface to XPath node-sets.

This class is also used to represent XPath node lists and sorted node sequences which do not need to obey a document order.

Since:

1.00.00

Version:

1.00.00

Author:

Alexey Gokhberg

See Also:

CIterator, Dom::INode

CNodeSet

CNodeSet();

Constructs the node-set.

~CNodeSet

virtual ~CNodeSet();

Destroys the node-set.

InDocumentOrder

virtual bool InDocumentOrder() = 0;

Tests whether nodes in this node-set are sorted in the document order.

Returns:

true if nodes of this node-set are sorted in the document order; false otherwise

InReverseDocumentOrder

virtual bool InReverseDocumentOrder() = 0;

Tests whether nodes in this node-set are sorted in the reverse document order.

Returns:

true if nodes of this node-set are sorted in the reverse document order; false otherwise

GetSize

virtual int GetSize() = 0;

Returns the number of nodes in this node-set.

Returns:

the number of nodes in this node-set

GetFirstNode

virtual XNode GetFirstNode() = 0;

Returns the first node of this node-set.

Returns:

the first node of this node-set; NULL if this node-set is empty

CreateIterator

virtual XIterator CreateIterator() = 0;

Creates an iterator for this node-set.

The iterator provides an interface for sequential enumeration of nodes in the node-set. See description of the CIterator class for details.

Returns:

the newly created iterator