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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 > 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. More...
 
virtual const pointer_typenext ()
 Get next element. More...
 
virtual skip_type skip (const skip_type ns)
 Skip items. More...
 

Private Attributes

pointer_type ps
 

Detailed Description

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

Implementation for null iteration.

Definition at line 325 of file JObjectIterator.hh.

Member Typedef Documentation

Definition at line 329 of file JObjectIterator.hh.

Member Function Documentation

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

Check availability of next element.

Returns
false

Implements JLANG::JObjectIterator< T >.

Definition at line 337 of file JObjectIterator.hh.

338  {
339  return false;
340  }
template<class T >
virtual const pointer_type& JLANG::JNullIterator< T >::next ( )
inlinevirtual

Get next element.

Returns
NULL

Implements JLANG::JObjectIterator< T >.

Definition at line 348 of file JObjectIterator.hh.

349  {
350  return ps;
351  }
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::JPipe< T >, JLANG::JPipe< JTail_t >, JLANG::JPipe< JHead_t >, JLANG::JSTDObjectIterator< T >, JLANG::JAbstractObjectReader< T >, JLANG::JAbstractObjectReader< JNullType >, JLANG::JAbstractObjectReader< const T >, JLANG::JAbstractObjectReader< JTail_t >, JLANG::JAbstractObjectReader< JHead_t >, JLANG::JAbstractObjectReader< KM3NETDAQ::KM3NETDAQ::JDAQEvent >, JLANG::JAbstractObjectReader< JDAQSummaryslice >, and JLANG::JAbstractObjectReader< JTypeList< JDAQEvent, JTypelist_t > >.

Definition at line 88 of file JObjectIterator.hh.

89  {
90  skip_type i = 0;
91 
92  for ( ; i != ns && hasNext(); ++i) {
93  next();
94  }
95 
96  return i;
97  }
unsigned int skip_type
Type definition for number of objects to skip.
virtual const pointer_type & next()=0
Get next element.
virtual bool hasNext()=0
Check availability of next element.

Member Data Documentation

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

Definition at line 354 of file JObjectIterator.hh.


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