feature: Add dummy code to subscribe to entities (not working).

source/RobotAPI/components/armem/ArMemExampleClient/ArMemExampleClient.cpp

@@ -115,6 +115,12 @@ namespace armarx
         armem::MemoryID entityID = providerID;
         entityID.entityName = "example_entity";
 
+        // Subscribe to example_entity updates
+        memoryReader.subscribe(entityID, [&](const armem::MemoryID & sid, const std::vector<armem::MemoryID>& sids)
+        {
+            example_entityUpdated(sid);
+        });
+
         armem::MemoryID snapshotID;
         {
             armem::Commit commit;
@@ -279,6 +285,13 @@ namespace armarx
     }
 
 
+    void ArMemExampleClient::example_entityUpdated(const armem::MemoryID& id)
+    {
+        ARMARX_IMPORTANT << "example_entity got updated";
+        // Fetch new data of example_entity and do something with it.
+    }
+
+
     bool ArMemExampleClient::primitives(armem::Writer& writer)
     {
         ARMARX_IMPORTANT << "Adding segment " << "Primitive" << "/" << getName();

source/RobotAPI/components/armem/ArMemExampleClient/ArMemExampleClient.h

@@ -63,9 +63,9 @@ namespace armarx
      * Detailed description of class ArMemExampleClient.
      */
     class ArMemExampleClient :
-        virtual public armarx::Component
-        , virtual public armarx::armem::client::ComponentPluginUser
-        , virtual public LightweightRemoteGuiComponentPluginUser
+        virtual public armarx::Component,
+        virtual public armarx::armem::client::ComponentPluginUser,
+        virtual public LightweightRemoteGuiComponentPluginUser
     {
     public:
 
@@ -98,6 +98,10 @@ namespace armarx
 
 
     private:
+
+        // Callback for updates on `example_entity`.
+        void example_entityUpdated(const armem::MemoryID& id);
+
         // Examples
         bool primitives(armem::Writer& writer);