Remove operations

bindings/CXX11/adios2/cxx11/Variable.cpp

@@ -183,6 +183,14 @@ namespace adios2
     }                                                                          \
                                                                                \
     template <>                                                                \
+    void Variable<T>::RemoveOperations()                                       \
+    {                                                                          \
+        helper::CheckForNullptr(m_Variable,                                    \
+                                "in call to Variable<T>::RemoveOperations");   \
+        m_Variable->RemoveOperations();                                        \
+    }                                                                          \
+                                                                               \
+    template <>                                                                \
     std::pair<T, T> Variable<T>::MinMax(const size_t step) const               \
     {                                                                          \
         helper::CheckForNullptr(m_Variable, "in call to Variable<T>::MinMax"); \

bindings/CXX11/adios2/cxx11/Variable.h

@@ -298,6 +298,12 @@ class Variable
      */
     std::vector<Operation> Operations() const;
 
+    /**
+     * Removes all current Operations associated with AddOperation.
+     * Provides the posibility to apply or not operators on a step basis.
+     */
+    void RemoveOperations();
+
     /**
      * Read mode only: return minimum and maximum values for current variable at
      * a step. For streaming mode (BeginStep/EndStep): use default (leave empty)

source/adios2/core/VariableBase.cpp

@@ -231,6 +231,8 @@ size_t VariableBase::AddOperation(Operator &op,
     return m_Operations.size() - 1;
 }
 
+void VariableBase::RemoveOperations() noexcept { m_Operations.clear(); }
+
 void VariableBase::SetOperationParameter(const size_t operationID,
                                          const std::string key,
                                          const std::string value)

source/adios2/core/VariableBase.h

@@ -168,6 +168,12 @@ class VariableBase
     size_t AddOperation(core::Operator &op,
                         const Params &parameters = Params()) noexcept;
 
+    /**
+     * Removes all current Operations associated with AddOperation.
+     * Provides the posibility to apply or not operators on a step basis.
+     */
+    void RemoveOperations() noexcept;
+
     /**
      * Sets a parameter by key/value in an existing operation from AddOperation
      * @param operationID returned handler form AddOperation

testing/adios2/engine/bp/operations/CMakeLists.txt

@@ -17,6 +17,7 @@ endif()
 if(ADIOS2_HAVE_ZFP)
   bp3_bp4_gtest_add_tests_helper(WriteReadZfp MPI_ALLOW)
   bp3_bp4_gtest_add_tests_helper(WriteReadZfpHighLevelAPI MPI_ALLOW)
+  bp3_bp4_gtest_add_tests_helper(WriteReadZfpRemoveOperations MPI_ALLOW)
   bp3_bp4_gtest_add_tests_helper(WriteReadZfpConfig MPI_ALLOW)
 
   gtest_add_tests_helper(ZfpComplex MPI_ALLOW BPWriteRead Engine. "")