DOMNodeVector.cpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001-2002 The Apache Software Foundation. All rights
- * reserved.
- *
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- * 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.
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- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
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- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
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- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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- * 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
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- */
- /*
- * $Id: DOMNodeVector.cpp,v 1.3 2002/11/04 15:07:34 tng Exp $
- */
- //
- // file: DOMNodeVector.cpp
- // Implementation of class DOMNodeVector.
- // (Use of STL vector, or equivalent, would have been nice,
- // but is not available. 'DOMNode *' is the only type
- // kept in Vectors in this DOM implementation, so this is
- // a hardwired implementation for that type.
- //
- #include "DOMNodeVector.hpp"
- #include "DOMDocumentImpl.hpp"
- #include <assert.h>
- XERCES_CPP_NAMESPACE_BEGIN
- DOMNodeVector::DOMNodeVector(DOMDocument *doc)
- {
- init(doc, 10);
- };
- DOMNodeVector::DOMNodeVector(DOMDocument *doc, XMLSize_t size) {
- init(doc, size);
- };
- void DOMNodeVector::init(DOMDocument *doc, XMLSize_t size) {
- assert(size > 0);
- //data = new (doc) DOMNode *[size];
- data = (DOMNode**) ((DOMDocumentImpl *)doc)->allocate(sizeof(DOMNode*) * size);
- assert(data != 0);
- XMLSize_t i;
- for (i=0; i<size; i++)
- data[i] = 0;
- allocatedSize = size;
- nextFreeSlot = 0;
- };
- DOMNodeVector::~DOMNodeVector() {
- };
- void DOMNodeVector::addElement(DOMNode *elem) {
- checkSpace();
- data[nextFreeSlot] = elem;
- ++nextFreeSlot;
- };
- void DOMNodeVector::checkSpace() {
- if (nextFreeSlot == allocatedSize) {
- XMLSize_t grow = allocatedSize/2;
- if (grow < 50) grow = 50;
- XMLSize_t newAllocatedSize = allocatedSize + grow;
- DOMDocument *doc = data[0]->getOwnerDocument();
- //DOMNode **newData = new (doc) DOMNode *[newAllocatedSize];
- DOMNode **newData = (DOMNode**) ((DOMDocumentImpl *)doc)->allocate(sizeof(DOMNode*) * newAllocatedSize);
- assert(newData != 0);
- for (XMLSize_t i=0; i<allocatedSize; i++) {
- newData[i] = data[i];
- };
- // delete [] data; // revisit. Can't delete! Recycle?
- allocatedSize = newAllocatedSize;
- data = newData;
- }
- }
-
- DOMNode *DOMNodeVector::elementAt(XMLSize_t index) {
- if (index >= nextFreeSlot)
- return 0;
- return data[index];
- };
- DOMNode *DOMNodeVector::lastElement() {
- if (nextFreeSlot == 0)
- return 0;
- return data[nextFreeSlot-1];
- };
- void DOMNodeVector::insertElementAt(DOMNode *elem, XMLSize_t index) {
- XMLSize_t i;
- assert(index <= nextFreeSlot);
- checkSpace();
- for (i=nextFreeSlot; i>index; --i) {
- data[i] = data[i-1];
- }
- data[index] = elem;
- ++nextFreeSlot;
- };
- void DOMNodeVector::removeElementAt(XMLSize_t index) {
- assert(index < nextFreeSlot);
- for (XMLSize_t i=index; i<nextFreeSlot-1; ++i) {
- data[i] = data[i+1];
- }
- --nextFreeSlot;
- };
- void DOMNodeVector::reset() {
- nextFreeSlot = 0;
- };
- void DOMNodeVector::setElementAt(DOMNode *elem, XMLSize_t index) {
- assert(index < nextFreeSlot);
- data[index] = elem;
- };
- XMLSize_t DOMNodeVector::size() {
- return nextFreeSlot;
- };
-
- XERCES_CPP_NAMESPACE_END