Attributes.hpp
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上传日期:2007-01-10
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xml/soap/webservice
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C/C++
- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2001 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Log: Attributes.hpp,v $
- * Revision 1.5 2001/05/11 13:26:25 tng
- * Copyright update.
- *
- * Revision 1.4 2001/02/26 19:44:19 tng
- * Schema: add utility class QName, by Pei Yong Zhang.
- *
- * Revision 1.3 2000/08/09 22:19:28 jpolast
- * many conformance & stability changes:
- * - ContentHandler::resetDocument() removed
- * - attrs param of ContentHandler::startDocument() made const
- * - SAXExceptions thrown now have msgs
- * - removed duplicate function signatures that had 'const'
- * [ eg: getContentHander() ]
- * - changed getFeature and getProperty to apply to const objs
- * - setProperty now takes a void* instead of const void*
- * - SAX2XMLReaderImpl does not inherit from SAXParser anymore
- * - Reuse Validator (http://apache.org/xml/features/reuse-validator) implemented
- * - Features & Properties now read-only during parse
- *
- * Revision 1.2 2000/08/07 18:21:26 jpolast
- * change SAX_EXPORT module to SAX2_EXPORT
- *
- * Revision 1.1 2000/08/02 18:02:34 jpolast
- * initial checkin of sax2 implementation
- * submitted by Simon Fell (simon@fell.com)
- * and Joe Polastre (jpolast@apache.org)
- *
- *
- */
- #ifndef ATTRIBUTES_HPP
- #define ATTRIBUTES_HPP
- #include <util/XercesDefs.hpp>
- /**
- * Interface for an element's attribute specifications.
- *
- * The SAX2 parser implements this interface and passes an instance
- * to the SAX2 application as the last argument of each startElement
- * event.
- *
- * The instance provided will return valid results only during the
- * scope of the startElement invocation (to save it for future
- * use, the application must make a copy: the AttributesImpl
- * helper class provides a convenient constructor for doing so).
- *
- * An Attributes includes only attributes that have been
- * specified or defaulted: #IMPLIED attributes will not be included.
- *
- * There are two ways for the SAX application to obtain information
- * from the Attributes. First, it can iterate through the entire
- * list:
- *
- * <pre>
- * public void startElement (String uri, String localpart, String qName, Attributes atts) {
- * for (int i = 0; i < atts.getLength(); i++) {
- * String Qname = atts.getQName(i);
- * String URI = atts.getURI(i)
- * String local = atts.GetLocalName(i)
- * String type = atts.getType(i);
- * String value = atts.getValue(i);
- * [...]
- * }
- * }
- * </pre>
- *
- * (Note that the result of getLength() will be zero if there
- * are no attributes.)
- *
- * As an alternative, the application can request the value or
- * type of specific attributes:
- *
- * <pre>
- * public void startElement (String uri, String localpart, String qName, Attributes atts) {
- * String identifier = atts.getValue("id");
- * String label = atts.getValue("label");
- * [...]
- * }
- * </pre>
- *
- * The AttributesImpl helper class provides a convenience
- * implementation for use by parser or application writers.
- *
- * @see Sax2DocumentHandler#startElement
- * @see AttributesImpl#AttributesImpl
- */
- class SAX2_EXPORT Attributes
- {
- public:
- // -----------------------------------------------------------------------
- // Constructors and Destructor
- // -----------------------------------------------------------------------
- /** @name Constructors and Destructor */
- //@{
- /** Default constructor */
- Attributes()
- {
- }
- /** Destructor */
- virtual ~Attributes()
- {
- }
- //@}
- /** @name The virtual attribute list interface */
- //@{
- /**
- * Return the number of attributes in this list.
- *
- * The SAX parser may provide attributes in any
- * arbitrary order, regardless of the order in which they were
- * declared or specified. The number of attributes may be
- * zero.
- *
- * @return The number of attributes in the list.
- */
- virtual unsigned int getLength() const = 0;
- /**
- * Return the namespace URI of an attribute in this list (by position).
- *
- * The QNames must be unique: the SAX parser shall not include the
- * same attribute twice. Attributes without values (those declared
- * #IMPLIED without a value specified in the start tag) will be
- * omitted from the list.
- *
- * @param index The index of the attribute in the list (starting at 0).
- * @return The URI of the indexed attribute, or null
- * if the index is out of range.
- * @see #getLength
- */
- virtual const XMLCh* getURI(const unsigned int index) const = 0;
- /**
- * Return the local name of an attribute in this list (by position).
- *
- * The QNames must be unique: the SAX parser shall not include the
- * same attribute twice. Attributes without values (those declared
- * #IMPLIED without a value specified in the start tag) will be
- * omitted from the list.
- *
- * @param index The index of the attribute in the list (starting at 0).
- * @return The local name of the indexed attribute, or null
- * if the index is out of range.
- * @see #getLength
- */
- virtual const XMLCh* getLocalName(const unsigned int index) const = 0;
- /**
- * Return the qName of an attribute in this list (by position).
- *
- * The QNames must be unique: the SAX parser shall not include the
- * same attribute twice. Attributes without values (those declared
- * #IMPLIED without a value specified in the start tag) will be
- * omitted from the list.
- *
- * @param index The index of the attribute in the list (starting at 0).
- * @return The qName of the indexed attribute, or null
- * if the index is out of range.
- * @see #getLength
- */
- virtual const XMLCh* getQName(const unsigned int index) const = 0;
- /**
- * Return the type of an attribute in the list (by position).
- *
- * 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 Recommentation
- * (clause 3.3.3, "Attribute-Value Normalization").
- *
- * For an enumerated attribute that is not a notation, the
- * parser will report the type as "NMTOKEN".
- *
- * @param index The index of the attribute in the list (starting at 0).
- * @return The attribute type as a string, or
- * null if the index is out of range.
- * @see #getLength
- * @see #getType(String)
- */
- virtual const XMLCh* getType(const unsigned int index) const = 0;
- /**
- * Return the value of an attribute in the list (by position).
- *
- * If the attribute value is a list of tokens (IDREFS,
- * ENTITIES, or NMTOKENS), the tokens will be concatenated
- * into a single string separated by whitespace.
- *
- * @param index The index of the attribute in the list (starting at 0).
- * @return The attribute value as a string, or
- * null if the index is out of range.
- * @see #getLength
- * @see #getValue(XMLCh*)
- */
- virtual const XMLCh* getValue(const unsigned int index) const = 0;
- ////////////////////////////////////////////////////////////////////
- // Name-based query.
- ////////////////////////////////////////////////////////////////////
- /**
- * Look up the index of an attribute by Namespace name.
- *
- * @param uri The Namespace URI, or the empty string if
- * the name has no Namespace URI.
- * @param localName The attribute's local name.
- * @return The index of the attribute, or -1 if it does not
- * appear in the list.
- */
- virtual int getIndex(const XMLCh* const uri, const XMLCh* const localPart ) const = 0 ;
- /**
- * Look up the index of an attribute by XML 1.0 qualified name.
- *
- * @param qName The qualified (prefixed) name.
- * @return The index of the attribute, or -1 if it does not
- * appear in the list.
- */
- virtual int getIndex(const XMLCh* const qName ) const = 0 ;
- /**
- * Look up an attribute's type by Namespace name.
- *
- * <p>See #getType for a description of the possible types.</p>
- *
- * @param uri The Namespace URI, or the empty String if the
- * name has no Namespace URI.
- * @param localName The local name of the attribute.
- * @return The attribute type as a string, or null if the
- * attribute is not in the list or if Namespace
- * processing is not being performed.
- */
- virtual const XMLCh* getType(const XMLCh* const uri, const XMLCh* const localPart ) const = 0 ;
- /**
- * Look up an attribute's type by XML 1.0 qualified name.
- *
- * <p>See #getType for a description of the possible types.</p>
- *
- * @param qName The XML 1.0 qualified name.
- * @return The attribute type as a string, or null if the
- * attribute is not in the list or if qualified names
- * are not available.
- */
- virtual const XMLCh* getType(const XMLCh* const qName) const = 0;
- /**
- * Look up an attribute's value by Namespace name.
- *
- * <p>See #getValue for a description of the possible values.</p>
- *
- * @param uri The Namespace URI, or the empty String if the
- * name has no Namespace URI.
- * @param localPart The local name of the attribute.
- * @return The attribute value as a string, or null if the
- * attribute is not in the list.
- */
- virtual const XMLCh* getValue(const XMLCh* const uri, const XMLCh* const localPart ) const = 0 ;
- /**
- * Look up an attribute's value by XML 1.0 qualified name.
- *
- * <p>See #getValue for a description of the possible values.</p>
- *
- * @param qName The XML 1.0 qualified name.
- * @return The attribute value as a string, or null if the
- * attribute is not in the list or if qualified names
- * are not available.
- */
- virtual const XMLCh* getValue(const XMLCh* const qName) const = 0;
- //@}
- private :
- /* Constructors and operators */
- /* Copy constructor */
- Attributes(const Attributes&);
- /* Assignment operator */
- void operator=(const Attributes&);
- };
- #endif