rti::routing::processor::Query Class Reference

Encapsulates a content query to select data from a rti::routing::adapter::StreamReader. More...

#include <Query.hpp>

Inherits Reference< rti::routing::processor::QueryHolder >.

Public Member Functions
	Query (RTI_RoutingServiceInput *input, const dds::topic::Filter &filter)
	Creates a Query described by a filter on an input. More...
void	filter (const dds::topic::Filter &filter)
	Updates the current Query content filter. More...

Detailed Description

Encapsulates a content query to select data from a rti::routing::adapter::StreamReader.

Note that syntax for the query filter is StreamReader implementation dependent. For the DDS Adapter case, the syntax corresponds to that of the SQL filter.

A Query object holds a custom query obtained by calling rti::routing::adapter::StreamReader::create_content_query. Likewise, the deletion of a Query object will call rti::routing::adapter::StreamReader::delete_content_query.

Constructor & Destructor Documentation

Query()

rti::routing::processor::Query::Query ( RTI_RoutingServiceInput *  input, const dds::topic::Filter &  filter  )

inline

Creates a Query described by a filter on an input.

Parameters

[in]	input	The native Input to query the data from.
[in]	filter	Description of the content query based on an expression and parameters.

See also

dds::topic::Filter

Member Function Documentation

filter()

void rti::routing::processor::Query::filter ( const dds::topic::Filter &  filter )

inline

Updates the current Query content filter.

This operation will call rti::routing::adapter::StreamReader::create_content_query providing the current query content data this Query holds.