source: XMLIO_V2/external/include/Poco/SAX/Attributes.h @ 80

//
// Attributes.h
//
// $Id: //poco/1.3/XML/include/Poco/SAX/Attributes.h#2 $
//
// Library: XML
// Package: SAX
// Module:  SAX
//
// SAX2 Attributes Interface.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef SAX_Attributes_INCLUDED
#define SAX_Attributes_INCLUDED


#include "Poco/XML/XML.h"
#include "Poco/XML/XMLString.h"


namespace Poco {
namespace XML {


class XML_API Attributes
        /// Interface for a list of XML attributes.
        /// This interface allows access to a list of attributes in three different ways:
        ///   1.by attribute index; 
        ///   2.by Namespace-qualified name; or 
        ///   3.by qualified (prefixed) name. 
        /// 
        /// The list will not contain attributes that were declared #IMPLIED but not 
        /// specified in the start tag. It will also not contain
        /// attributes used as Namespace declarations (xmlns*) unless the 
        /// http://xml.org/sax/features/namespace-prefixes
        /// feature is set to true (it is false by default).
        /// 
        /// If the namespace-prefixes feature (see above) is false, access by 
        /// qualified name may not be available; if the
        /// http://xml.org/sax/features/namespaces feature is false, access by 
        /// Namespace-qualified names may not be available.
        /// This interface replaces the now-deprecated SAX1 AttributeList interface, 
        /// which does not contain Namespace support. In
        /// addition to Namespace support, it adds the getIndex methods (below).
        /// The order of attributes in the list is unspecified, and will vary from 
        /// implementation to implementation.
{
public:
        virtual int getIndex(const XMLString& name) const = 0;
                /// Look up the index of an attribute by a qualified name.

        virtual int getIndex(const XMLString& namespaceURI, const XMLString& localName) const = 0;
                /// Look up the index of an attribute by a namspace name.

        virtual int getLength() const = 0;
                /// Return the number of attributes in the list.
                ///
                /// Once you know the number of attributes, you can iterate through the list.
                
        virtual const XMLString& getLocalName(int i) const = 0;
                /// Look up a local attribute name by index.

        virtual const XMLString& getQName(int i) const = 0;
                /// Look up a qualified attribute name by index.

        virtual const XMLString& getType(int i) const = 0;
                /// Look up an attribute type by index.
                ///
                /// The attribute type is one of the strings "CDATA", "ID", "IDREF", "IDREFS", "NMTOKEN", 
                /// "NMTOKENS", "ENTITY", "ENTITIES", or "NOTATION" (always in upper case).
                ///
                /// If the parser has not read a declaration for the attribute, or if the parser does not 
                /// report attribute types, then it must return the value "CDATA" as stated in the XML 1.0 
                /// Recommendation (clause 3.3.3, "Attribute-Value Normalization").
                /// 
                /// For an enumerated attribute that is not a notation, the parser will report the type 
                /// as "NMTOKEN".

        virtual const XMLString& getType(const XMLString& qname) const = 0;
                /// Look up an attribute type by a qualified name.
                ///
                /// See getType(int) for a description of the possible types.

        virtual const XMLString& getType(const XMLString& namespaceURI, const XMLString& localName) const = 0;
                /// Look up an attribute type by a namespace name.
                ///
                /// See getType(int) for a description of the possible types.

        virtual const XMLString& getValue(int i) const = 0;
                /// Look up an attribute value by index.
                ///
                /// If the attribute value is a list of tokens (IDREFS, ENTITIES, or NMTOKENS), the tokens 
                /// will be concatenated into a single string with each token separated by a single space.

        virtual const XMLString& getValue(const XMLString& qname) const = 0;
                /// Look up an attribute value by a qualified name.
                ///
                /// See getValue(int) for a description of the possible values.

        virtual const XMLString& getValue(const XMLString& uri, const XMLString& localName) const = 0;
                /// Look up an attribute value by a namespace name.
                ///
                /// See getValue(int) for a description of the possible values.

        virtual const XMLString& getURI(int i) const = 0;
                /// Look up a namespace URI by index.

protected:
        virtual ~Attributes();
};


} } // namespace Poco::XML


#endif // SAX_Attributes_INCLUDED