Pivotal GemFire Native Client Cache Reference  9.0.6
gemfire::CacheableUndefined Class Reference

Encapsulate an undefined query result. More...

Inherits gemfire::Serializable.

Public Member Functions

virtual int32_t classId () const
 Return the classId of the instance being serialized. More...
 
virtual int8_t DSFID () const
 Return the data serialization fixed ID size type for internal use. More...
 
virtual SerializablefromData (DataInput &input)
 deserialize this object More...
 
virtual uint32_t objectSize () const
 return the size in bytes of the instance being serialized. More...
 
void preserveSB () const
 Atomically increment reference count. More...
 
int32_t refCount ()
 
void releaseSB () const
 Atomically decrement reference count, the SharedBase object is automatically deleted when its reference count goes to zero. More...
 
virtual void toData (DataOutput &output) const
 serialize this object More...
 
virtual CacheableStringPtr toString () const
 Display this object as 'string', which depends on the implementation in the subclasses. More...
 
virtual int8_t typeId () const
 return the typeId byte of the instance being serialized. More...
 

Static Public Member Functions

static CacheableUndefinedPtr create ()
 Factory method for creating the default instance of CacheableUndefined. More...
 
template<class PRIM >
static SerializablePtr create (const PRIM value)
 Factory method that creates the Serializable object that matches the type of value. More...
 
static SerializablecreateDeserializable ()
 creation function for undefined query result More...
 
static void registerPdxSerializer (PdxSerializerPtr pdxSerializer)
 Register the PDX serializer which can handle serialization for instances of user domain classes. More...
 
static void registerPdxType (TypeFactoryMethodPdx creationFunction)
 register an Pdx instance factory method for a given type. More...
 
static void registerType (TypeFactoryMethod creationFunction)
 register an instance factory method for a given type. More...
 

Protected Member Functions

 CacheableUndefined ()
 Constructor, used for deserialization. More...
 

Detailed Description

Encapsulate an undefined query result.

Constructor & Destructor Documentation

gemfire::CacheableUndefined::CacheableUndefined ( )
inlineprotected

Constructor, used for deserialization.

Member Function Documentation

virtual int32_t gemfire::CacheableUndefined::classId ( ) const
virtual

Return the classId of the instance being serialized.

This is used by deserialization to determine what instance type to create and deserialize into.

Implements gemfire::Serializable.

static CacheableUndefinedPtr gemfire::CacheableUndefined::create ( )
inlinestatic

Factory method for creating the default instance of CacheableUndefined.

template<class PRIM >
static SerializablePtr gemfire::Serializable::create ( const PRIM  value)
inlinestaticinherited

Factory method that creates the Serializable object that matches the type of value.

For customer defined derivations of Serializable, the method gemfire::createValue may be overloaded. For pointer types (e.g. char*) the method gemfire::createValueArr may be overloaded.

static Serializable* gemfire::CacheableUndefined::createDeserializable ( )
inlinestatic

creation function for undefined query result

virtual int8_t gemfire::CacheableUndefined::DSFID ( ) const
virtual

Return the data serialization fixed ID size type for internal use.

Since
GFE 5.7

Reimplemented from gemfire::Serializable.

virtual Serializable* gemfire::CacheableUndefined::fromData ( DataInput input)
virtual

deserialize this object

Implements gemfire::Serializable.

virtual uint32_t gemfire::CacheableUndefined::objectSize ( ) const
virtual

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 gemfire::Serializable.

void gemfire::SharedBase::preserveSB ( ) const
inherited

Atomically increment reference count.

int32_t gemfire::SharedBase::refCount ( )
inlineinherited
Returns
the reference count
static void gemfire::Serializable::registerPdxSerializer ( PdxSerializerPtr  pdxSerializer)
staticinherited

Register the PDX serializer which can handle serialization for instances of user domain classes.

See also
PdxSerializer
static void gemfire::Serializable::registerPdxType ( TypeFactoryMethodPdx  creationFunction)
staticinherited

register an Pdx instance factory method for a given type.

Exceptions
IllegalStateExceptionif the typeName has already been registered, or there is an error in registering the type; check errno for more information in the latter case.
static void gemfire::Serializable::registerType ( TypeFactoryMethod  creationFunction)
staticinherited

register an instance factory method for a given type.

During registration the factory will be invoked to extract the typeId to associate with this function.

Exceptions
IllegalStateExceptionif the typeId has already been registered, or there is an error in registering the type; check errno for more information in the latter case.
void gemfire::SharedBase::releaseSB ( ) const
inherited

Atomically decrement reference count, the SharedBase object is automatically deleted when its reference count goes to zero.

virtual void gemfire::CacheableUndefined::toData ( DataOutput output) const
virtual

serialize this object

Implements gemfire::Serializable.

virtual CacheableStringPtr gemfire::Serializable::toString ( ) const
virtualinherited

Display this object as 'string', which depends on the implementation in the subclasses.

The default implementation renders the classname.

The return value may be a temporary, so the caller has to ensure that the SharedPtr count does not go down to zero by storing the result in a variable or otherwise.

Reimplemented in gemfire::PdxInstance, gemfire::CacheableString, gemfire::CacheableDate, gemfire::CacheableKeyType< TObj, TYPEID, TYPENAME, SPRINTFSYM, STRSIZE >, and gemfire::CacheableEnum.

virtual int8_t gemfire::CacheableUndefined::typeId ( ) const
virtual

return the typeId byte of the instance being serialized.

This is used by deserialization to determine what instance type to create and deserialize into.

Reimplemented from gemfire::Serializable.


GemFire C++ Cache API Documentation