C++ Client API Reference for Oracle Coherence: coherence/io/pof/EvolvableHolder.hpp Source File

00001 /*
00002  * Copyright (c) 2000, 2020, Oracle and/or its affiliates.
00003  *
00004  * Licensed under the Universal Permissive License v 1.0 as shown at
00005  * http://oss.oracle.com/licenses/upl.
00006  */
00007 #ifndef COH_EVOLVABLE_HOLDER_HPP
00008 #define COH_EVOLVABLE_HOLDER_HPP
00009 
00010 #include "coherence/lang.ns"
00011 
00012 #include "coherence/io/Evolvable.hpp"
00013 
00014 #include "coherence/util/Map.hpp"
00015 #include "coherence/util/Set.hpp"
00016 
00017 COH_OPEN_NAMESPACE3(coherence,io,pof)
00018 
00019 using coherence::io::Evolvable;
00020 using coherence::util::Map;
00021 using coherence::util::Set;
00022 
00023 /**
00024  * Storage for Evolvable classes.
00025  *
00026  * @author as  2013.07.25
00027  *
00028  * @since  12.1.3
00029  */
00030 class COH_EXPORT EvolvableHolder
00031     : public class_spec<EvolvableHolder,
00032         extends<Object> >
00033     {
00034     friend class factory<EvolvableHolder>;
00035 
00036     // ---- constructors ----------------------------------------------------
00037 
00038     protected:
00039         EvolvableHolder();
00040 
00041     // ---- EvolvableHolder methods------------------------------------------
00042 
00043     public:
00044         /**
00045          * Return Evolvable for the specified type id.
00046          *
00047          * @param nTypeId  type identifier
00048          *
00049          * @return  Evolvable instance
00050          */
00051         virtual Evolvable::Handle get(int32_t nTypeId) const;
00052 
00053         /**
00054          * Return type identifiers for all the Evolvables within this holder.
00055          *
00056          * @return  type identifiers for all the Evolvables within this holder
00057          */
00058         virtual Set::View getTypeIds() const;
00059 
00060         /**
00061          * Return <c>true</c> if this holder is empty.
00062          *
00063          * @return  <c>true</c> if this holder is empty, <c>false</c> otherwise
00064          */
00065         virtual bool isEmpty() const;
00066 
00067     // ---- data members ----------------------------------------------------
00068 
00069     private:
00070         /**
00071          * Map of Evolvable objects keyed by type id (Integer32)
00072          */
00073         mutable FinalHandle<Map> f_hEvolvableMap;
00074     };
00075 
00076 COH_CLOSE_NAMESPACE3
00077 
00078 #endif // COH_EVOLVABLE_HOLDER_HPP