apache::geode::client::CacheableEnum Class Reference

Since C++ enums cannot be directly passed as a parameter to PdxWriter's writeObject and PdxReader's readObject api, wrap C++ enums with an immutable wrapper CacheableEnum class type by specifying enum class name, enum value name and its ordinal. More...

#include <CacheableEnum.hpp>

Inherits internal::DataSerializablePrimitive, and apache::geode::client::CacheableKey.

Public Member Functions
const std::string &	getEnumClassName () const
const std::string &	getEnumName () const
int32_t	getEnumOrdinal () const
virtual int32_t	hashcode () const override
virtual size_t	objectSize () const override
	return the size in bytes of the instance being serialized.
virtual bool	operator== (const CacheableKey &other) const override
virtual std::string	toString () const override
	Display this object as c string.

Static Public Member Functions
template<class _T >
static std::shared_ptr< CacheableKey >	create (_T value)
	Factory method that creates the key type that matches the type of value.
static std::shared_ptr< CacheableEnum >	create (std::string enumClassName, std::string enumName, int32_t ordinal)
	Factory method for creating an instance of CacheableEnum.
static std::shared_ptr< Serializable >	createDeserializable ()
	creation function for enum.

Detailed Description

Since C++ enums cannot be directly passed as a parameter to PdxWriter's writeObject and PdxReader's readObject api, wrap C++ enums with an immutable wrapper CacheableEnum class type by specifying enum class name, enum value name and its ordinal.

C++ enum allows explicit setting of ordinal number, but it is up to the user to map java enumName with that of C++ enumName. Currently this wrapper only works as part of PdxSerializable member object and cannot be directly used in Region operations.

See also

PdxWriter::writeObject

PdxReader::readObject

Member Function Documentation

create() [1/2]

template<class _T >

static std::shared_ptr< CacheableKey > apache::geode::client::CacheableKey::create ( _T  value )

staticinherited

Factory method that creates the key type that matches the type of value.

For user defined derivations of CacheableKey, the method apache::geode::client::CacheableKey::create may be overloaded.

create() [2/2]

static std::shared_ptr< CacheableEnum > apache::geode::client::CacheableEnum::create ( std::string  enumClassName, std::string  enumName, int32_t  ordinal  )

inlinestatic

Factory method for creating an instance of CacheableEnum.

Parameters

enumClassName	the name of the enum class that maps to the java enum type.
enumName	the name of the enum constant that maps to the java enum type.
ordinal	the ordinal value of the enum constant that maps to the java enum type.

Returns

a CacheableEnum representing C++ enum.

createDeserializable()

static std::shared_ptr< Serializable > apache::geode::client::CacheableEnum::createDeserializable ( )

inlinestatic

creation function for enum.

getEnumClassName()

const std::string & apache::geode::client::CacheableEnum::getEnumClassName ( ) const

inline

Returns

enum class name.

getEnumName()

const std::string & apache::geode::client::CacheableEnum::getEnumName ( ) const

inline

Returns

enum name.

getEnumOrdinal()

int32_t apache::geode::client::CacheableEnum::getEnumOrdinal ( ) const

inline

Returns

enum ordinal.

hashcode()

virtual int32_t apache::geode::client::CacheableEnum::hashcode ( ) const

inlineoverridevirtual

Returns

the hashcode for this key.

Implements apache::geode::client::CacheableKey.

objectSize()

virtual size_t apache::geode::client::CacheableEnum::objectSize ( ) const

inlineoverridevirtual

return the size in bytes of the instance being serialized.

This is used to determine whether the cache is using up more physical memory than it has been configured to use. The method can return zero if the user does not require the ability to control cache memory utilization. Note that you must implement this only if you use the HeapLRU feature.

Reimplemented from apache::geode::client::Serializable.

operator==()

virtual bool apache::geode::client::CacheableEnum::operator== ( const CacheableKey &  other ) const

overridevirtual

Returns

true if this key matches other.

Implements apache::geode::client::CacheableKey.

toString()

virtual std::string apache::geode::client::CacheableEnum::toString ( ) const

inlineoverridevirtual

Display this object as c string.

Reimplemented from apache::geode::client::Serializable.