code: public void setBindings( Collection<VarBindingDef> bindings)
      {
      bindings_ = new HashMap<VarDef,VarBindingDef>();
      properties_ = new PropertySet();
      
      if( bindings != null)
        {
        for( VarBindingDef binding : bindings)
          {
          add( binding);
          }
        }
      }
docs: Changes the variable bindings for this tuple.