Public Member Functions | List of all members
ibis::colInts Class Reference

A class to store integer values. More...

#include <colValues.h>

Inheritance diagram for ibis::colInts:
ibis::colValues

Public Member Functions

virtual void bottomk (uint32_t k, array_t< uint32_t > &ind) const
 Return the positions of the k smallest elements.
 
 colInts (const ibis::column *c, const ibis::bitvector &hits)
 
 colInts (const ibis::column *c, ibis::fileManager::storage *store, const uint32_t start, const uint32_t nelm)
 
 colInts (const ibis::column *c)
 
virtual uint32_t elementSize () const
 
virtual bool empty () const
 
virtual void erase (uint32_t i, uint32_t j)
 
virtual void * getArray () const
 Return the pointer to the pointer to underlying array_t<T> object.
 
virtual double getDouble (uint32_t i) const
 
virtual float getFloat (uint32_t i) const
 
virtual int32_t getInt (uint32_t i) const
 
virtual int64_t getLong (uint32_t i) const
 
virtual double getMax () const
 
virtual double getMin () const
 
virtual double getSum () const
 
virtual ibis::TYPE_T getType () const
 Return the type of the data stored.
 
virtual uint32_t getUInt (uint32_t i) const
 
virtual uint64_t getULong (uint32_t i) const
 
virtual void nosharing ()
 Make sure the content of the underlying storage is not shared.
 
virtual void reduce (const array_t< uint32_t > &starts)
 Remove the duplicate elements according to the array starts.
 
virtual void reduce (const array_t< uint32_t > &starts, ibis::selectClause::AGREGADO func)
 remove the duplicate elements according to the array starts
 
virtual void reorder (const array_t< uint32_t > &ind)
 Reorder the values according to the specified indices. More...
 
virtual array_t< uint32_t > * segment (const array_t< uint32_t > *old=0) const
 Produce an array of the starting positions of values that are the same. More...
 
virtual uint32_t size () const
 
virtual void sort (uint32_t i, uint32_t j, bundle *bdl)
 Sort rows in the range [i, j).
 
virtual void sort (uint32_t i, uint32_t j, bundle *bdl, colList::iterator head, colList::iterator tail)
 Sort rows in the range [i, j). More...
 
virtual void sort (uint32_t i, uint32_t j, array_t< uint32_t > &neworder) const
 Sort rows in the range [i, j). More...
 
virtual void swap (uint32_t i, uint32_t j)
 
void swap (colInts &rhs)
 
virtual void topk (uint32_t k, array_t< uint32_t > &ind) const
 Return the positions of the k largest elements.
 
virtual long truncate (uint32_t keep)
 Truncate the number element to no more than keep.
 
virtual long truncate (uint32_t keep, uint32_t start)
 Truncate the number element to no more than keep.
 
virtual long write (FILE *fptr) const
 Write out whole array as binary.
 
virtual void write (std::ostream &out, uint32_t i) const
 Write ith element as text.
 
- Public Member Functions inherited from ibis::colValues
bool canSort () const
 
const ibis::columncolumnPointer () const
 
const char * name () const
 Name.
 
const ibis::columnoperator-> () const
 Provide a pointer to the column containing the selected values.
 
void setTimeFormat (const char *, const char *=0)
 Add a custom format for the column to be interpretted as unix time stamps.
 
void swap (colValues &rhs)
 

Additional Inherited Members

- Static Public Member Functions inherited from ibis::colValues
static colValuescreate (const ibis::column *c)
 Implementation of the colValues class hierarchy. More...
 
static colValuescreate (const ibis::column *c, const ibis::bitvector &hits)
 Construct from a hit vector.
 
static colValuescreate (const ibis::column *c, ibis::fileManager::storage *store, const uint32_t start, const uint32_t end)
 Construct from content of the file (pointed by store). More...
 
- Protected Member Functions inherited from ibis::colValues
 colValues (const ibis::column *c)
 
- Protected Attributes inherited from ibis::colValues
const ibis::columncol
 
ibis::column::unixTimeScribeutform
 !< The column where the value is from.
 

Detailed Description

A class to store integer values.

Member Function Documentation

virtual void ibis::colInts::reorder ( const array_t< uint32_t > &  ind)
inlinevirtual

Reorder the values according to the specified indices.

New[i] = Old[ind[i]].

Implements ibis::colValues.

References ibis::util::reorder().

ibis::array_t< uint32_t > * ibis::colInts::segment ( const array_t< uint32_t > *  old = 0) const
virtual

Produce an array of the starting positions of values that are the same.

Implements ibis::colValues.

References ibis::array_t< T >::push_back(), and ibis::array_t< T >::size().

virtual void ibis::colInts::sort ( uint32_t  i,
uint32_t  j,
bundle bdl,
colList::iterator  head,
colList::iterator  tail 
)
virtual

Sort rows in the range [i, j).

Also sort the columns between [head, tail).

Implements ibis::colValues.

void ibis::colInts::sort ( uint32_t  i,
uint32_t  j,
array_t< uint32_t > &  neworder 
) const
virtual

Sort rows in the range [i, j).

Output the new order in array neworder.

Implements ibis::colValues.

References ibis::array_t< T >::clear(), ibis::array_t< T >::push_back(), and ibis::array_t< T >::reserve().


The documentation for this class was generated from the following files:

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