co.cask.cdap.etl.api.batch

Interface BatchJoinerRuntimeContext

All Superinterfaces:

BatchRuntimeContext, DatasetContext, LookupProvider, StageContext, TransformContext

public interface BatchJoinerRuntimeContext
extends BatchRuntimeContext

Runtime context for batch joiner

Method Summary

Methods

Modifier and Type	Method and Description
Map<String,co.cask.cdap.api.data.schema.Schema>	getInputSchemas() Returns a map of input schemas for joiner.
co.cask.cdap.api.data.schema.Schema	getOutputSchema() Returns output schema configured in BatchJoiner.configurePipeline(MultiInputPipelineConfigurer) at configure time.

Methods inherited from interface co.cask.cdap.etl.api.batch.BatchRuntimeContext

getHadoopJob, getLogicalStartTime, getRuntimeArguments

Methods inherited from interface co.cask.cdap.api.data.DatasetContext

discardDataset, getDataset, getDataset, getDataset, getDataset, releaseDataset

Methods inherited from interface co.cask.cdap.etl.api.StageContext

getMetrics, getPluginProperties, getPluginProperties, getStageName, loadPluginClass, newPluginInstance

Methods inherited from interface co.cask.cdap.etl.api.LookupProvider

provide

Method Detail

getInputSchemas

Map<String,co.cask.cdap.api.data.schema.Schema> getInputSchemas()

Returns a map of input schemas for joiner. If the input schema for an input is null, the map will have input name with null schema for that input

Returns:

a map of input stage name to input schema for all the inputs to joiner

getOutputSchema

@Nullable
co.cask.cdap.api.data.schema.Schema getOutputSchema()

Returns output schema configured in BatchJoiner.configurePipeline(MultiInputPipelineConfigurer) at configure time. If not configured it will return null

Returns:

output schema Schema for joiner