Uses of Interface
org.apache.drill.exec.physical.impl.scan.v3.SchemaNegotiator
Package
Description
Provides the "version 3" scan framework (which can also be thought of
as EVF version 2).
Implements the details of the scan lifecycle for a set of readers,
primarily the process of resolving the scan output schema from a variety
of input schemas, then running each reader, each of which will produce
some number of batches.
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Uses of SchemaNegotiator in org.apache.drill.exec.physical.impl.scan.v3
Modifier and TypeInterfaceDescriptioninterface
ReaderFactory<T extends SchemaNegotiator>
Creates a batch reader on demand.Modifier and TypeMethodDescriptionstatic FixedReceiver.Builder
FixedReceiver.builderFor
(SchemaNegotiator negotiator) ScanLifecycleBuilder.DummyReaderFactory.next
(SchemaNegotiator negotiator) -
Uses of SchemaNegotiator in org.apache.drill.exec.physical.impl.scan.v3.file
Modifier and TypeInterfaceDescriptioninterface
The file schema negotiator provides access to the Drill file system and to the file split which the reader is to consume.Modifier and TypeClassDescriptionclass
Implementation of the file-level schema negotiator which holds the file split which the reader is to process. -
Uses of SchemaNegotiator in org.apache.drill.exec.physical.impl.scan.v3.lifecycle
Modifier and TypeClassDescriptionclass
Implementation of the schema negotiation between scan operator and batch reader.