Add some simple STL predicates.

diff --git a/xmltooling/Makefile.am b/xmltooling/Makefile.am
index 511bc26..42d943d 100644 (file)
--- a/xmltooling/Makefile.am
+++ b/xmltooling/Makefile.am
@@ -101,6 +101,7 @@ utilinclude_HEADERS = \
        util/DateTime.h \
        util/NDC.h \
        util/ParserPool.h \
+       util/Predicates.h \
        util/ReloadableXMLFile.h \
        util/ReplayCache.h \
        util/StorageService.h \

diff --git a/xmltooling/util/Predicates.h b/xmltooling/util/Predicates.h
new file mode 100644 (file)
index 0000000..2453a62
--- /dev/null
+++ b/xmltooling/util/Predicates.h
@@ -0,0 +1,89 @@
+/*
+ *  Copyright 2001-2007 Internet2
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @file xmltooling/util/Predicates.h
+ * 
+ * Useful XMLObject predicates for use with STL algorithms. 
+ */
+
+#ifndef __xmltooling_predicates_h__
+#define __xmltooling_predicates_h__
+
+#include <xmltooling/XMLObject.h>
+
+#include <functional>
+
+namespace xmltooling {
+
+    /**
+     * Predicate that checks the QName of an XMLObject.
+     */
+    class hasQName
+    {
+    public:
+        /**
+         * Constructor.
+         * 
+         * @param q the QName to check for
+         */
+        hasQName(const QName& q) : m_q(q) {
+        }
+        
+        /**
+         * Returns true iff the provided object's QName matches the constructor argument.
+         * 
+         * @param xmlObject the object to examine
+         */
+        bool operator()(const XMLObject* xmlObject) {
+            return xmlObject ? (xmlObject->getElementQName() == m_q) : false;
+        }
+        
+    private:
+        const QName& m_q;
+    };
+
+    /**
+     * Predicate that checks the xsi:type of an XMLObject.
+     */
+    class hasSchemaType
+    {
+    public:
+        /**
+         * Constructor.
+         * 
+         * @param q the QName to check for
+         */
+        hasSchemaType(const QName& q) : m_q(q) {
+        }
+        
+        /**
+         * Returns true iff the provided object's xsi:type matches the constructor argument.
+         * 
+         * @param xmlObject the object to examine
+         */
+        bool operator()(const XMLObject* xmlObject) {
+            const QName* xsitype = xmlObject ? xmlObject->getSchemaType() : NULL;
+            return xsitype ? (*xsitype == m_q) : false;
+        }
+        
+    private:
+        const QName& m_q;
+    };
+        
+};
+
+#endif /* __xmltooling_predicates_h__ */