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Class MergeStreamKernel

Inheritance Relationships

Base Type

Class Documentation

class ral::batch::MergeStreamKernel : public ral::cache::kernel

This kernel has a loop over all its different input caches. It then pulls all the inputs from one cache and merges them.

Public Functions

MergeStreamKernel(std::size_t kernel_id, const std::string &queryString, std::shared_ptr<Context> context, std::shared_ptr<ral::cache::graph> query_graph)
inline virtual std::string kernel_name()
ral::execution::task_result do_process(std::vector<std::unique_ptr<ral::frame::BlazingTable>> inputs, std::shared_ptr<ral::cache::CacheMachine> output, cudaStream_t stream, const std::map<std::string, std::string> &args) override
virtual kstatus run() override

Executes the batch processing. Loads the data from their input port, and after processing it, the results are stored in their output port.

Return

kstatus ‘stop’ to halt processing, or ‘proceed’ to continue processing.

Class MergeAggregateKernel Class OutputKernel