Active search algorithm params set to optional

src/algorithms/activesearch/alg_activesearch.h

@@ -105,7 +105,7 @@ class AlgorithmACTIVESEARCH : public AlgorithmBase {
         // Factory method
         static AlgorithmBasePtr create(const std::string& _unique_name, const ParamsBasePtr _params);
 
-        AlgorithmParamsBasePtr getParams(void);
+        AlgorithmParamsACTIVESEARCHPtr getParams(void);
 
         void setParams(AlgorithmParamsACTIVESEARCHPtr _params);
 
@@ -225,7 +225,7 @@ class AlgorithmACTIVESEARCH : public AlgorithmBase {
 /*
  * brief Retrieve object parameters
  */
-inline AlgorithmParamsBasePtr AlgorithmACTIVESEARCH::getParams(void) { return params_ptr_; }
+inline AlgorithmParamsACTIVESEARCHPtr AlgorithmACTIVESEARCH::getParams(void) { return params_ptr_; }
 
 /*
  * brief Set object parameters

src/algorithms/algorithm_base.h

@@ -44,8 +44,6 @@ class AlgorithmBase : public VUBase, public std::enable_shared_from_this<Algorit
 
         std::string getName(void);
 
-        virtual AlgorithmParamsBasePtr getParams(void) = 0;
-
         // Factory method
         static AlgorithmBasePtr create(const std::string& _unique_name, const ParamsBasePtr _params);