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JLANG::JNullIterator< T > Struct Template Reference

Implementation for null iteration. More...

#include <JObjectIterator.hh>

Inheritance diagram for JLANG::JNullIterator< T >:
JLANG::JObjectIterator< T > JIO::JBinaryFileReader< T, false > JSUPPORT::JDAQFileReader< T, false > JSUPPORT::JMonteCarloASCIIFileReader< T > JSUPPORT::JMonteCarloGZFileReader< T >

Public Types

typedef JObjectIterator< T >::pointer_type pointer_type
 

Public Member Functions

virtual bool hasNext ()
 Check availability of next element.
 
virtual const pointer_typenext ()
 Get next element.
 
virtual skip_type skip (const skip_type ns)
 Skip items.
 

Private Attributes

pointer_type ps
 

Detailed Description

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

Implementation for null iteration.

Definition at line 327 of file JObjectIterator.hh.

Member Typedef Documentation

◆ pointer_type

template<class T >
JObjectIterator<T>::pointer_type JLANG::JNullIterator< T >::pointer_type

Definition at line 331 of file JObjectIterator.hh.

Member Function Documentation

◆ hasNext()

template<class T >
virtual bool JLANG::JNullIterator< T >::hasNext ( )
inlinevirtual

Check availability of next element.

Returns
false

Implements JLANG::JObjectIterator< T >.

Definition at line 339 of file JObjectIterator.hh.

340 {
341 return false;
342 }

◆ next()

template<class T >
virtual const pointer_type & JLANG::JNullIterator< T >::next ( )
inlinevirtual

Get next element.

Returns
NULL

Implements JLANG::JObjectIterator< T >.

Definition at line 350 of file JObjectIterator.hh.

351 {
352 return ps;
353 }

◆ skip()

template<class T >
virtual skip_type JLANG::JObjectIterator< T >::skip ( const skip_type ns)
inlinevirtualinherited

Skip items.

Parameters
nsnumber of items to skip
Returns
number of items skipped

Reimplemented in JLANG::JAbstractObjectReader< T >, JLANG::JAbstractObjectReader< const event_type >, JLANG::JAbstractObjectReader< Evt >, JLANG::JAbstractObjectReader< JDAQSummaryslice >, JLANG::JAbstractObjectReader< JHead_t >, JLANG::JAbstractObjectReader< JTail_t >, JLANG::JAbstractObjectReader< JTypeList< JDAQEvent, JNullType > >, JLANG::JAbstractObjectReader< KM3NETDAQ::JDAQEvent >, JLANG::JPipe< T >, JLANG::JPipe< JHead_t >, JLANG::JPipe< JTail_t >, JLANG::JSTDObjectIterator< T >, JROOT::JRootFileReader< T, false >, JROOT::JTreeReaderObjectIterator< T >, JSUPPORT::JMultipleFileScanner< T >, JSUPPORT::JMultipleFileScanner< Evt >, JSUPPORT::JMultipleFileScanner< JDAQSummaryslice >, JSUPPORT::JMultipleFileScanner< JHead_t >, JSUPPORT::JMultipleFileScanner< JTail_t >, JSUPPORT::JMultipleFileScanner< JTypeList< JDAQEvent, JNullType > >, JSUPPORT::JMultipleFileScanner< JTypeList< JHead_t, JTail_t > >, JSUPPORT::JMultipleFileScanner< KM3NETDAQ::JDAQEvent >, JSUPPORT::JMultipleFileScanner<>, JSUPPORT::JSingleFileScanner< T >, JSUPPORT::JSingleFileScanner< JHead_t >, JSUPPORT::JSingleFileScanner< JTail_t >, JSUPPORT::JSingleFileScanner< JTypeList< JHead_t, JTail_t > >, and JSUPPORT::JSingleFileScanner<>.

Definition at line 90 of file JObjectIterator.hh.

91 {
92 skip_type i = 0;
93
94 for ( ; i != ns && hasNext(); ++i) {
95 next();
96 }
97
98 return i;
99 }
virtual bool hasNext()=0
Check availability of next element.
virtual const pointer_type & next()=0
Get next element.
unsigned int skip_type
Type definition for number of objects to skip.

Member Data Documentation

◆ ps

template<class T >
pointer_type JLANG::JNullIterator< T >::ps
private

Definition at line 356 of file JObjectIterator.hh.


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