Oracle Coherence for C++ API
Release 3.7.1.0
E22845-01

Float64Sum Class Reference

#include <coherence/util/aggregator/Float64Sum.hpp>

Inherits AbstractFloat64Aggregator.

List of all members.

Detailed Description

Sums up numeric values extracted from a set of entries in a Map.

All the extracted Number objects will be treated as float64_t values.

Author:: djl 2008.05.12

Public Types

typedef spec::Handle Handle

Float64Sum Handle definition.

typedef spec::View View

Float64Sum View definition.

typedef spec::Holder Holder

Float64Sum Holder definition.

Protected Member Functions

Float64Sum ()

Default constructor (necessary for the PortableObject interface).

Float64Sum (ValueExtractor::View vExtractor)

Construct a Float64Sum aggregator.

virtual void init (bool fFinal)

Initialize the aggregation result.

Parameters:

fFinal

true is passed if the aggregation process that is being initialized must produce a final aggregation result; this will only be false if a parallel approach is being used and the initial (partial) aggregation process is being initialized

virtual void process (Object::View v, bool fFinal)

Incorporate one aggregatable value into the result.

If the fFinal parameter is true, the given object is a partial result (returned by an individual parallel aggregator) that should be incorporated into the final result; otherwise, the object is a value extracted from an coherence::util::InvocableMap::Entry.

Parameters:

	vO	the value to incorporate into the aggregated result
	fFinal	true to indicate that the given object is a partial result returned by a parallel aggregator

Constructor & Destructor Documentation

Float64Sum ( ValueExtractor::View vExtractor ) [protected]

Construct a Float64Sum aggregator.

Parameters:

vExtractor

the extractor that provides a value in the form of any object that is a Number

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

coherence/util/aggregator/Float64Sum.hpp