.. _program_listing_file__tmp_ws_src_warehouse_ros_include_warehouse_ros_metadata.h:

Program Listing for File metadata.h
===================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_warehouse_ros_include_warehouse_ros_metadata.h>` (``/tmp/ws/src/warehouse_ros/include/warehouse_ros/metadata.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2008 Willow Garage, Inc.
   //
   // Redistribution and use in source and binary forms, with or without
   // modification, are permitted provided that the following conditions are met:
   //
   //    * Redistributions of source code must retain the above copyright
   //      notice, this list of conditions and the following disclaimer.
   //
   //    * Redistributions in binary form must reproduce the above copyright
   //      notice, this list of conditions and the following disclaimer in the
   //      documentation and/or other materials provided with the distribution.
   //
   //    * Neither the name of the Willow Garage, Inc. nor the names of its
   //      contributors may be used to endorse or promote products derived from
   //      this software without specific prior written permission.
   //
   // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   // POSSIBILITY OF SUCH DAMAGE.
   
   #ifndef WAREHOUSE_ROS_METADATA_H
   #define WAREHOUSE_ROS_METADATA_H
   
   #include <rclcpp/rclcpp.hpp>
   #include <boost/shared_ptr.hpp>
   #include <set>
   
   namespace warehouse_ros
   {
   class Query
   {
   public:
     typedef boost::shared_ptr<Query> Ptr;
     typedef boost::shared_ptr<const Query> ConstPtr;
   
     virtual ~Query()
     {
     }
     virtual void append(const std::string& name, const std::string& val) = 0;
     // explicitly provide signature for const char*, otherwise bool version is called
     void append(const std::string& name, const char* val)
     {
       append(name, std::string(val));
     }
     virtual void append(const std::string& name, const double val) = 0;
     virtual void append(const std::string& name, const int val) = 0;
     virtual void append(const std::string& name, const bool val) = 0;
     virtual void appendLT(const std::string& name, const double val) = 0;
     virtual void appendLT(const std::string& name, const int val) = 0;
     virtual void appendLTE(const std::string& name, const double val) = 0;
     virtual void appendLTE(const std::string& name, const int val) = 0;
     virtual void appendGT(const std::string& name, const double val) = 0;
     virtual void appendGT(const std::string& name, const int val) = 0;
     virtual void appendGTE(const std::string& name, const double val) = 0;
     virtual void appendGTE(const std::string& name, const int val) = 0;
     virtual void appendRange(const std::string& name, const double lower, const double upper) = 0;
     virtual void appendRange(const std::string& name, const int lower, const int upper) = 0;
     virtual void appendRangeInclusive(const std::string& name, const double lower, const double upper) = 0;
     virtual void appendRangeInclusive(const std::string& name, const int lower, const int upper) = 0;
   };
   
   class Metadata
   {
   public:
     typedef boost::shared_ptr<Metadata> Ptr;
     typedef boost::shared_ptr<const Metadata> ConstPtr;
   
     virtual ~Metadata()
     {
     }
     virtual void append(const std::string& name, const std::string& val) = 0;
     void append(const std::string& name, const char* val)
     {
       append(name, std::string(val));
     }
     virtual void append(const std::string& name, const double val) = 0;
     virtual void append(const std::string& name, const int val) = 0;
     virtual void append(const std::string& name, const bool val) = 0;
     virtual std::string lookupString(const std::string& name) const = 0;
     virtual double lookupDouble(const std::string& name) const = 0;
     virtual int lookupInt(const std::string& name) const = 0;
     virtual bool lookupBool(const std::string& name) const = 0;
     virtual bool lookupField(const std::string& name) const = 0;
     virtual std::set<std::string> lookupFieldNames() const = 0;
   };
   
   }  // namespace warehouse_ros
   
   #endif  // include guard