--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Plugins/IDatabaseBackendOutput.h	Thu Mar 18 17:00:38 2021 +0100
@@ -0,0 +1,95 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2021 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "../../Resources/Orthanc/Databases/DatabaseConstraint.h"
+
+namespace OrthancPlugins
+{
+  class IDatabaseBackendOutput : public boost::noncopyable
+  {
+  public:
+    class IFactory : public boost::noncopyable
+    {
+    public:
+      virtual ~IFactory()
+      {
+      }
+
+      virtual IDatabaseBackendOutput* CreateOutput() = 0;
+    };
+    
+    virtual ~IDatabaseBackendOutput()
+    {
+    }
+
+    virtual void SignalDeletedAttachment(const std::string& uuid,
+                                         int32_t            contentType,
+                                         uint64_t           uncompressedSize,
+                                         const std::string& uncompressedHash,
+                                         int32_t            compressionType,
+                                         uint64_t           compressedSize,
+                                         const std::string& compressedHash) = 0;
+
+    virtual void SignalDeletedResource(const std::string& publicId,
+                                       OrthancPluginResourceType resourceType) = 0;
+
+    virtual void SignalRemainingAncestor(const std::string& ancestorId,
+                                         OrthancPluginResourceType ancestorType) = 0;
+    
+    virtual void AnswerAttachment(const std::string& uuid,
+                                  int32_t            contentType,
+                                  uint64_t           uncompressedSize,
+                                  const std::string& uncompressedHash,
+                                  int32_t            compressionType,
+                                  uint64_t           compressedSize,
+                                  const std::string& compressedHash) = 0;
+
+    virtual void AnswerChange(int64_t                    seq,
+                              int32_t                    changeType,
+                              OrthancPluginResourceType  resourceType,
+                              const std::string&         publicId,
+                              const std::string&         date) = 0;
+
+    virtual void AnswerDicomTag(uint16_t group,
+                                uint16_t element,
+                                const std::string& value) = 0;
+
+    virtual void AnswerExportedResource(int64_t                    seq,
+                                        OrthancPluginResourceType  resourceType,
+                                        const std::string&         publicId,
+                                        const std::string&         modality,
+                                        const std::string&         date,
+                                        const std::string&         patientId,
+                                        const std::string&         studyInstanceUid,
+                                        const std::string&         seriesInstanceUid,
+                                        const std::string&         sopInstanceUid) = 0;
+#if ORTHANC_PLUGINS_HAS_DATABASE_CONSTRAINT == 1
+    virtual void AnswerMatchingResource(const std::string& resourceId) = 0;
+#endif
+    
+#if ORTHANC_PLUGINS_HAS_DATABASE_CONSTRAINT == 1
+    virtual void AnswerMatchingResource(const std::string& resourceId,
+                                        const std::string& someInstanceId) = 0;
+#endif
+  };
+}