Check for same document assignment.

git-svn-id: https://svn.middleware.georgetown.edu/cpp-xmltooling/branches/REL_1@662 de75baf8-a10c-0410-a50a-987c0e22f00f

diff --git a/xmltooling/AbstractDOMCachingXMLObject.cpp b/xmltooling/AbstractDOMCachingXMLObject.cpp
index 476eccd..bfd0353 100644 (file)
--- a/xmltooling/AbstractDOMCachingXMLObject.cpp
+++ b/xmltooling/AbstractDOMCachingXMLObject.cpp
@@ -65,9 +65,11 @@ void AbstractDOMCachingXMLObject::setDOM(DOMElement* dom, bool bindDocument) con
 
 void AbstractDOMCachingXMLObject::setDocument(DOMDocument* doc) const
 {
-    if (m_document)
-        m_document->release();
-    m_document=doc;
+    if (m_document != doc) {
+        if (m_document)
+            m_document->release();
+        m_document=doc;
+    }
 }
 
 void AbstractDOMCachingXMLObject::releaseDOM() const
@@ -94,15 +96,17 @@ void AbstractDOMCachingXMLObject::releaseParentDOM(bool propagateRelease) const
     }
 }
 
-class _release : public binary_function<XMLObject*,bool,void> {
-public:
-    void operator()(XMLObject* obj, bool propagate) const {
-        if (obj) {
-            obj->releaseDOM();
-            if (propagate)
-                obj->releaseChildrenDOM(propagate);
+namespace {
+    class _release : public binary_function<XMLObject*,bool,void> {
+    public:
+        void operator()(XMLObject* obj, bool propagate) const {
+            if (obj) {
+                obj->releaseDOM();
+                if (propagate)
+                    obj->releaseChildrenDOM(propagate);
+            }
         }
-    }
+    };
 };
 
 void AbstractDOMCachingXMLObject::releaseChildrenDOM(bool propagateRelease) const