FieldHandler< TOutput, TCField, TDBField > Class Template Reference

#include <RecordHelper.h>

Inheritance diagram for FieldHandler< TOutput, TCField, TDBField >:

Public Types
typedef coral::AttributeList	AttributeList
typedef void(TOutput::*	TSetMethod) (const TCField)
Public Types inherited from FieldHandlerBase< TOutput >
typedef coral::AttributeList	AttributeList

Public Member Functions
void	extractValue (const AttributeList &src, TOutput &dest) override
	FieldHandler (const std::string &fieldName, TSetMethod setter)
	FieldHandler ()=delete
Public Member Functions inherited from FieldHandlerBase< TOutput >
	FieldHandlerBase (const std::string &name)
	FieldHandlerBase ()=delete
virtual const std::string	getColumnName ()
const std::string &	getName ()
virtual	~FieldHandlerBase ()

Protected Member Functions
void	call (TOutput &dest, const TCField value)

Protected Attributes
TSetMethod	setter_ = nullptr

Detailed Description

template<class TOutput, class TCField, class TDBField>
class FieldHandler< TOutput, TCField, TDBField >

A template field handler that simply

• casts the data field to TCField
• converts that value to TCField
• passes it to a setter method of a TOutput object

Definition at line 60 of file RecordHelper.h.

Member Typedef Documentation

AttributeList

template<class TOutput, class TCField, class TDBField>

typedef coral::AttributeList FieldHandler< TOutput, TCField, TDBField >::AttributeList

Definition at line 62 of file RecordHelper.h.

TSetMethod

template<class TOutput, class TCField, class TDBField>

typedef void(TOutput::* FieldHandler< TOutput, TCField, TDBField >::TSetMethod) (const TCField)

Definition at line 63 of file RecordHelper.h.

Constructor & Destructor Documentation

FieldHandler() [1/2]

template<class TOutput, class TCField, class TDBField>

FieldHandler< TOutput, TCField, TDBField >::FieldHandler ( const std::string &  fieldName, TSetMethod  setter  )

inline

Definition at line 65 of file RecordHelper.h.

      : FieldHandlerBase<TOutput>(fieldName), setter_(setter) {}

FieldHandler() [2/2]

template<class TOutput, class TCField, class TDBField>

FieldHandler< TOutput, TCField, TDBField >::FieldHandler ( )

delete

Member Function Documentation

call()

template<class TOutput, class TCField, class TDBField>

void FieldHandler< TOutput, TCField, TDBField >::call ( TOutput &  dest, const TCField  value  )

inlineprotected

Definition at line 85 of file RecordHelper.h.

Referenced by FieldHandler< TOutput, bool, char >::extractValue().

{ ((dest).*setter_)(value); }

extractValue()

template<class TOutput, class TCField, class TDBField>

void FieldHandler< TOutput, TCField, TDBField >::extractValue ( const AttributeList &  src, TOutput &  dest  )

inlineoverridevirtual

Actual data extraction.

Implements FieldHandlerBase< TOutput >.

Definition at line 71 of file RecordHelper.h.

                                                                      {
#ifdef RECORDHELPER_DEBUG
    std::cout << "Parsing field " << this->getName() << " with type " << typeid(TCField).name();
#endif
    typedef typename std::remove_cv<typename std::remove_reference<TDBField>::type>::type TDBFieldT;
    const TDBFieldT& value = src[this->getColumnName()].template data<TDBFieldT>();
    call(dest, TCField(value));

#ifdef RECORDHELPER_DEBUG
    std::cout << "=" << TCField(value) << std::endl;
#endif
  }

Member Data Documentation

setter_

template<class TOutput, class TCField, class TDBField>

TSetMethod FieldHandler< TOutput, TCField, TDBField >::setter_ = nullptr

protected

Points to the setter method used to stuff the field's value into the destination object.

Definition at line 88 of file RecordHelper.h.

Referenced by FieldHandler< TOutput, bool, char >::call().