1 files changed, 52 insertions, 0 deletions
diff --git a/xmloff/inc/unointerfacetouniqueidentifiermapper.hxx b/xmloff/inc/unointerfacetouniqueidentifiermapper.hxx
new file mode 100644
index 000000000000..2aeb9072851d
--- /dev/null
+++ b/xmloff/inc/unointerfacetouniqueidentifiermapper.hxx
@@ -0,0 +1,52 @@
+#ifndef __COMPHELPER_UNOINTERFACETOUNIQUEIDENTIFIERMAPPER__
+#define __COMPHELPER_UNOINTERFACETOUNIQUEIDENTIFIERMAPPER__
+
+#include <map>
+#include <rtl/ustring.hxx>
+#include <com/sun/star/uno/XInterface.hpp>
+
+namespace comphelper
+{
+
+typedef ::std::map< rtl::OUString, const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > > IdMap_t;
+
+class UnoInterfaceToUniqueIdentifierMapper
+{
+public:
+    UnoInterfaceToUniqueIdentifierMapper();
+
+    /** returns a unique identifier for the given uno object. IF a uno object is
+        registered more than once, the returned identifier is always the same.
+    */
+    const rtl::OUString& registerReference( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rInterface );
+
+    /** registers the given uno object with the given identifier.
+
+        @returns
+            false, if the given identifier already exists and is not associated with the given interface
+    */
+    bool registerReference( const rtl::OUString& rIdentifier, const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rInterface );
+
+    /** @returns
+            the identifier for the given uno object. If this uno object is not already
+            registered, an empty string is returned
+    */
+    const rtl::OUString& getIdentifier( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rInterface ) const;
+
+    /** @returns
+        the uno object that is registered with the given identifier. If no uno object
+        is registered with the given identifier, an empty reference is returned.
+    */
+    const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& getReference( const rtl::OUString& rIdentifier ) const;
+
+private:
+    bool findReference( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& rInterface, IdMap_t::const_iterator& rIter ) const;
+    bool findIdentifier( const rtl::OUString& rIdentifier, IdMap_t::const_iterator& rIter ) const;
+
+    IdMap_t maEntries;
+    sal_Int32 mnNextId;
+};
+
+}
+
+#endif