IDEntityReferenceImpl.cpp
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上传日期:2007-01-10
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文件大小:10k
源码类别:
xml/soap/webservice
开发平台:
C/C++
- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 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) 2001, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: IDEntityReferenceImpl.cpp,v 1.3 2001/12/07 01:37:24 tng Exp $
- */
- /**
- * EntityReference models the XML &entityname; syntax, when used for
- * entities defined by the DOM. Entities hardcoded into XML, such as
- * character entities, should instead have been translated into text
- * by the code which generated the DOM tree.
- * <P>
- * An XML processor has the alternative of fully expanding Entities
- * into the normal document tree. If it does so, no EntityReference nodes
- * will appear.
- * <P>
- * Similarly, non-validating XML processors are not required to read
- * or process entity declarations made in the external subset or
- * declared in external parameter entities. Hence, some applications
- * may not make the replacement value available for Parsed Entities
- * of these types.
- * <P>
- * EntityReference behaves as a read-only node, and the children of
- * the EntityReference (which reflect those of the Entity, and should
- * also be read-only) give its replacement value, if any. They are
- * supposed to automagically stay in synch if the DocumentType is
- * updated with new values for the Entity.
- * <P>
- * The defined behavior makes efficient storage difficult for the DOM
- * implementor. We can't just look aside to the Entity's definition
- * in the DocumentType since those nodes have the wrong parent (unless
- * we can come up with a clever "imaginary parent" mechanism). We
- * must at least appear to clone those children... which raises the
- * issue of keeping the reference synchronized with its parent.
- * This leads me back to the "cached image of centrally defined data"
- * solution, much as I dislike it.
- * <P>
- * For now I have decided, since REC-DOM-Level-1-19980818 doesn't
- * cover this in much detail, that synchronization doesn't have to be
- * considered while the user is deep in the tree. That is, if you're
- * looking within one of the EntityReferennce's children and the Entity
- * changes, you won't be informed; instead, you will continue to access
- * the same object -- which may or may not still be part of the tree.
- * This is the same behavior that obtains elsewhere in the DOM if the
- * subtree you're looking at is deleted from its parent, so it's
- * acceptable here. (If it really bothers folks, we could set things
- * up so deleted subtrees are walked and marked invalid, but that's
- * not part of the DOM's defined behavior.)
- * <P>
- * As a result, only the EntityReference itself has to be aware of
- * changes in the Entity. And it can take advantage of the same
- * structure-change-monitoring code I implemented to support
- * DeepNodeList.
- *
- * @author Rania Y. Khalaf
- * @author Joseph Kesselman
- * @since PR-DOM-Level-1-19980818.
- */
- #include "IDDocumentImpl.hpp"
- #include "IDDocumentTypeImpl.hpp"
- #include "IDEntityImpl.hpp"
- #include "IDEntityReferenceImpl.hpp"
- #include "IDOM_DOMException.hpp"
- #include "IDOM_Node.hpp"
- #include "IDNamedNodeMapImpl.hpp"
- IDEntityReferenceImpl::IDEntityReferenceImpl(IDOM_Document *ownerDoc,
- const XMLCh *entityName)
- : fNode(ownerDoc), fParent(ownerDoc)
- {
- fName = ((IDDocumentImpl *)getOwnerDocument())->getPooledString(entityName);
- // EntityReference behaves as a read-only node, since its contents
- // reflect the Entity it refers to -- but see setNodeName().
- fNode.isReadOnly(true);
- }
- IDEntityReferenceImpl::IDEntityReferenceImpl(const IDEntityReferenceImpl &other,
- bool deep)
- : fNode(other.fNode), fParent(other.fParent), fChild(other.fChild)
- {
- fName = other.fName;
- if (deep)
- fParent.cloneChildren(&other);
- fNode.isReadOnly(true);
- }
- IDEntityReferenceImpl::~IDEntityReferenceImpl()
- {
- }
- IDOM_Node *IDEntityReferenceImpl::cloneNode(bool deep) const
- {
- return new (getOwnerDocument()) IDEntityReferenceImpl(*this, deep);
- }
- const XMLCh * IDEntityReferenceImpl::getNodeName() const
- {
- return fName;
- };
- short IDEntityReferenceImpl::getNodeType() const {
- return IDOM_Node::ENTITY_REFERENCE_NODE;
- };
- /**
- * EntityReferences never have a nodeValue.
- * @throws DOMException(NO_MODIFICATION_ALLOWED_ERR)
- */
- void IDEntityReferenceImpl::setNodeValue(const XMLCh *x)
- {
- fNode.setNodeValue(x);
- }
- /**
- * EntityRef is already, and must be, a read-only node. Attempts to change
- * that will throw a NO_MODIFICATION_ALLOWED_ERR DOMException.
- * <P>
- * If you want to alter its contents, edit the Entity definition.
- *
- * @param readOnly boolean
- */
- void IDEntityReferenceImpl::setReadOnly(bool readOnl,bool deep)
- {
- if(readOnl==false)
- throw IDOM_DOMException(IDOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, 0);
- fNode.setReadOnly(readOnl,deep);
- }
- //
- // Delegate functions from Node to the appropriate implementation.
- //
- IDOM_Node *IDEntityReferenceImpl::appendChild(IDOM_Node *newChild) {return fParent.appendChild (newChild); };
- IDOM_NamedNodeMap *IDEntityReferenceImpl::getAttributes() const {return fNode.getAttributes (); };
- IDOM_NodeList *IDEntityReferenceImpl::getChildNodes() const {return fParent.getChildNodes (); };
- IDOM_Node *IDEntityReferenceImpl::getFirstChild() const {return fParent.getFirstChild (); };
- IDOM_Node *IDEntityReferenceImpl::getLastChild() const {return fParent.getLastChild (); };
- const XMLCh *IDEntityReferenceImpl::getLocalName() const {return fNode.getLocalName (); };
- const XMLCh *IDEntityReferenceImpl::getNamespaceURI() const {return fNode.getNamespaceURI (); };
- IDOM_Node *IDEntityReferenceImpl::getNextSibling() const {return fChild.getNextSibling (); };
- const XMLCh *IDEntityReferenceImpl::getNodeValue() const {return fNode.getNodeValue (); };
- IDOM_Document *IDEntityReferenceImpl::getOwnerDocument() const {return fNode.getOwnerDocument (); };
- const XMLCh *IDEntityReferenceImpl::getPrefix() const {return fNode.getPrefix (); };
- IDOM_Node *IDEntityReferenceImpl::getParentNode() const {return fChild.getParentNode (this); };
- IDOM_Node *IDEntityReferenceImpl::getPreviousSibling() const {return fChild.getPreviousSibling (this); };
- bool IDEntityReferenceImpl::hasChildNodes() const {return fParent.hasChildNodes (); };
- IDOM_Node *IDEntityReferenceImpl::insertBefore(IDOM_Node *newChild, IDOM_Node *refChild)
- {return fParent.insertBefore (newChild, refChild); };
- void IDEntityReferenceImpl::normalize() {fNode.normalize (); };
- IDOM_Node *IDEntityReferenceImpl::removeChild(IDOM_Node *oldChild) {return fParent.removeChild (oldChild); };
- IDOM_Node *IDEntityReferenceImpl::replaceChild(IDOM_Node *newChild, IDOM_Node *oldChild)
- {return fParent.replaceChild (newChild, oldChild); };
- bool IDEntityReferenceImpl::supports(const XMLCh *feature, const XMLCh *version) const
- {return fNode.supports (feature, version); };
- void IDEntityReferenceImpl::setPrefix(const XMLCh *prefix) {fNode.setPrefix(prefix); };