Apache Arrow (C++)
A columnar in-memory analytics layer designed to accelerate big data.
Public Types | Public Member Functions | List of all members
arrow::DictionaryArray Class Reference

#include <arrow/array.h>

Inheritance diagram for arrow::DictionaryArray:
arrow::Array

Public Types

using TypeClass = DictionaryType
 

Public Member Functions

 DictionaryArray (const std::shared_ptr< ArrayData > &data)
 
 DictionaryArray (const std::shared_ptr< DataType > &type, const std::shared_ptr< Array > &indices)
 
std::shared_ptr< Arrayindices () const
 
std::shared_ptr< Arraydictionary () const
 
const DictionaryTypedict_type () const
 
- Public Member Functions inherited from arrow::Array
virtual ~Array ()=default
 
bool IsNull (int64_t i) const
 Return true if value at index is null. Does not boundscheck. More...
 
bool IsValid (int64_t i) const
 Return true if value at index is valid (not null). More...
 
int64_t length () const
 Size in the number of elements this array contains. More...
 
int64_t offset () const
 A relative position into another array's data, to enable zero-copy slicing. More...
 
int64_t null_count () const
 The number of null entries in the array. More...
 
std::shared_ptr< DataTypetype () const
 
Type::type type_id () const
 
std::shared_ptr< Buffernull_bitmap () const
 Buffer for the null bitmap. More...
 
const uint8_t * null_bitmap_data () const
 Raw pointer to the null bitmap. More...
 
bool Equals (const Array &arr) const
 
bool Equals (const std::shared_ptr< Array > &arr) const
 
bool ApproxEquals (const std::shared_ptr< Array > &arr) const
 
bool ApproxEquals (const Array &arr) const
 
bool RangeEquals (int64_t start_idx, int64_t end_idx, int64_t other_start_idx, const std::shared_ptr< Array > &other) const
 Compare if the range of slots specified are equal for the given array and this array. More...
 
bool RangeEquals (const Array &other, int64_t start_idx, int64_t end_idx, int64_t other_start_idx) const
 
Status Accept (ArrayVisitor *visitor) const
 
std::shared_ptr< ArraySlice (int64_t offset, int64_t length) const
 Construct a zero-copy slice of the array with the indicated offset and length. More...
 
std::shared_ptr< ArraySlice (int64_t offset) const
 Slice from offset until end of the array. More...
 
std::shared_ptr< ArrayDatadata () const
 
int num_fields () const
 
std::string ToString () const
 

Additional Inherited Members

- Protected Member Functions inherited from arrow::Array
 Array ()
 
void SetData (const std::shared_ptr< ArrayData > &data)
 Protected method for constructors. More...
 
- Protected Attributes inherited from arrow::Array
std::shared_ptr< ArrayDatadata_
 
const uint8_t * null_bitmap_data_
 

Member Typedef Documentation

◆ TypeClass

Constructor & Destructor Documentation

◆ DictionaryArray() [1/2]

arrow::DictionaryArray::DictionaryArray ( const std::shared_ptr< ArrayData > &  data)
explicit

◆ DictionaryArray() [2/2]

arrow::DictionaryArray::DictionaryArray ( const std::shared_ptr< DataType > &  type,
const std::shared_ptr< Array > &  indices 
)

Member Function Documentation

◆ dict_type()

const DictionaryType* arrow::DictionaryArray::dict_type ( ) const
inline

◆ dictionary()

std::shared_ptr<Array> arrow::DictionaryArray::dictionary ( ) const

◆ indices()

std::shared_ptr<Array> arrow::DictionaryArray::indices ( ) const

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