update_tuple_sketch< Summary, Update, Policy, Allocator >::builder Class Reference

Update Tuple sketch builder. More...

#include <tuple_sketch.hpp>

Inheritance diagram for update_tuple_sketch< Summary, Update, Policy, Allocator >::builder:

Public Member Functions
	builder (const P &policy=P(), const A &allocator=A())
	Constructor Creates and instance of the builder with default parameters.
update_tuple_sketch< S, U, P, A >	build () const
	This is to create an instance of the sketch with predefined parameters.
Public Member Functions inherited from theta_base_builder< builder, A >
	theta_base_builder (const A &allocator)
	Creates and instance of the builder with default parameters.
builder &	set_lg_k (uint8_t lg_k)
	Set log2(k), where k is a nominal number of entries in the sketch.
builder &	set_resize_factor (resize_factor rf)
	Set resize factor for the internal hash table (defaults to 8).
builder &	set_p (float p)
	Set sampling probability (initial theta).
builder &	set_seed (uint64_t seed)
	Set the seed for the hash function.

Detailed Description

template<typename Summary, typename Update = Summary, typename Policy = default_tuple_update_policy<Summary, Update>, typename Allocator = std::allocator<Summary>>
class datasketches::update_tuple_sketch< Summary, Update, Policy, Allocator >::builder

Update Tuple sketch builder.

Constructor & Destructor Documentation

builder()

template<typename S, typename U, typename P, typename A>

builder	(	const P &	policy = P(),
		const A &	allocator = A() )

Constructor Creates and instance of the builder with default parameters.

Parameters

policy	user-defined way of creating and updating Summary
allocator	instance of an Allocator to pass to created sketches

Member Function Documentation

build()

template<typename S, typename U, typename P, typename A>

auto build

(

)

const

This is to create an instance of the sketch with predefined parameters.

Returns

an instance of the sketch

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

• tuple/include/tuple_sketch.hpp
• tuple/include/tuple_sketch_impl.hpp