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JLANG::JAbstractAccessibleObjectReader< T > Struct Template Referenceabstract

Abstract interface for object reading with named access. More...

#include <JAbstractObjectReader.hh>

Inheritance diagram for JLANG::JAbstractAccessibleObjectReader< T >:
JLANG::JAccessibleObjectIterator< T > JLANG::JAbstractObjectReader< T > JLANG::JObjectIterator< T > JLANG::JAccessible JLANG::JObjectIterator< T > JLANG::JThrow< JAccessible > JLANG::JAccessibleObjectReader< T > JSUPPORT::JFileScanner< Evt > JSUPPORT::JFileScanner< JHead_t > JSUPPORT::JFileScanner< JTail_t > JSUPPORT::JFileScanner< JDAQSummaryslice > JSUPPORT::JFileScanner< JTypeList< JDAQEvent, JNullType > > JSUPPORT::JFileScanner< KM3NETDAQ::JDAQEvent > JSUPPORT::JFileScanner< T >

Public Types

typedef JObjectIterator< T >::pointer_type pointer_type
 

Public Member Functions

virtual JAccessibleObjectIterator< T > * getHelper () const override=0
 Get helper.
 
virtual bool is_open () const override
 Check is device is open.
 
virtual void open (const char *file_name) override
 Open device.
 
virtual void close () override
 Close device.
 
virtual bool hasNext () override
 Check availability of next element.
 
virtual const pointer_typenext () override
 Get next element.
 
virtual skip_type skip (const skip_type ns) override
 Skip items.
 

Static Public Member Functions

static void Throw (const bool option)
 Enable/disable throw option.
 
static int Throw (const JException_t &error, const int value=-1)
 Throw exception or return error.
 

Static Protected Attributes

static bool do_throw
 throw option
 

Private Attributes

pointer_type ps
 

Detailed Description

template<class T>
struct JLANG::JAbstractAccessibleObjectReader< T >

Abstract interface for object reading with named access.

This class implements the JAccessibleObjectIterator interface by transferring the interface methods to a helper object via a single interface method getHelper().

Definition at line 120 of file JAbstractObjectReader.hh.

Member Typedef Documentation

◆ pointer_type

template<class T >
JObjectIterator<T>::pointer_type JLANG::JAbstractObjectReader< T >::pointer_type
inherited

Definition at line 27 of file JAbstractObjectReader.hh.

Member Function Documentation

◆ getHelper()

◆ is_open()

template<class T >
virtual bool JLANG::JAbstractAccessibleObjectReader< T >::is_open ( ) const
inlineoverridevirtual

Check is device is open.

Returns
true if open; else false

Implements JLANG::JAccessible.

Definition at line 137 of file JAbstractObjectReader.hh.

138 {
139 if (this->getHelper() != NULL)
140 return this->getHelper()->is_open();
141 else
142 return false;
143 }
virtual JAccessibleObjectIterator< T > * getHelper() const override=0
Get helper.

◆ open()

template<class T >
virtual void JLANG::JAbstractAccessibleObjectReader< T >::open ( const char * file_name)
inlineoverridevirtual

◆ close()

◆ hasNext()

template<class T >
virtual bool JLANG::JAbstractObjectReader< T >::hasNext ( )
inlineoverridevirtualinherited

Check availability of next element.

Returns
true if the iteration has more elements; else false

Implements JLANG::JObjectIterator< T >.

Definition at line 43 of file JAbstractObjectReader.hh.

44 {
45 return (this->getHelper() != NULL && this->getHelper()->hasNext());
46 }
virtual bool hasNext() override
Check availability of next element.
virtual JObjectIterator< T > * getHelper() const =0
Get helper.

◆ next()

template<class T >
virtual const pointer_type & JLANG::JAbstractObjectReader< T >::next ( )
inlineoverridevirtualinherited

Get next element.

Returns
pointer to element

Implements JLANG::JObjectIterator< T >.

Definition at line 54 of file JAbstractObjectReader.hh.

55 {
56 if (this->getHelper() != NULL)
57 return this->getHelper()->next();
58 else
59 return ps;
60 }

◆ skip()

template<class T >
virtual skip_type JLANG::JAbstractObjectReader< T >::skip ( const skip_type ns)
inlineoverridevirtualinherited

Skip items.

Parameters
nsnumber of items to skip
Returns
number of items skipped

Reimplemented from JLANG::JObjectIterator< T >.

Definition at line 69 of file JAbstractObjectReader.hh.

70 {
71 if (this->getHelper() != NULL)
72 return this->getHelper()->skip(ns);
73 else
74 return 0;
75 }

◆ Throw() [1/2]

static void JLANG::JThrow< JAccessible >::Throw ( const bool option)
inlinestaticinherited

Enable/disable throw option.

Parameters
optiontrue enable; false disable

Definition at line 37 of file JThrow.hh.

38 {
39 do_throw = option;
40 }

◆ Throw() [2/2]

static int JLANG::JThrow< JAccessible >::Throw ( const JException_t & error,
const int value = -1 )
inlinestaticinherited

Throw exception or return error.

Parameters
errorexception
valuereturn code
Returns
return code

Definition at line 51 of file JThrow.hh.

52 {
53 using namespace std;
54
55 if (do_throw) {
56 throw error;
57 }
58
59 cerr << error.what() << endl;
60
61 return value;
62 }

Member Data Documentation

◆ ps

template<class T >
pointer_type JLANG::JAbstractObjectReader< T >::ps
privateinherited

Definition at line 78 of file JAbstractObjectReader.hh.

◆ do_throw

bool JLANG::JThrow< JAccessible >::do_throw
staticprotectedinherited

throw option

Set default throw option to true.

Definition at line 28 of file JThrow.hh.


The documentation for this struct was generated from the following file: