org.apache.drill.exec.physical.base

Interface Leaf

All Superinterfaces:

FragmentLeaf, GraphValue<PhysicalOperator>, Iterable<PhysicalOperator>, PhysicalOperator

All Known Subinterfaces:

FileGroupScan, GroupScan, Scan, SubScan

All Known Implementing Classes:

AbstractFileGroupScan, AbstractGroupScan, AbstractSubScan, DirectGroupScan, DirectSubScan, EasyGroupScan, EasySubScan, InfoSchemaGroupScan, InfoSchemaSubScan, MetadataDirectGroupScan, MockGroupScanPOP, MockSubScanPOP, ParquetGroupScan, ParquetRowGroupScan, SystemTableScan, Values

public interface Leaf
extends FragmentLeaf

An operator which specifically is a lowest level leaf node of a query plan across all possible fragments. Currently, the only operator that is a Leaf node are GroupScan nodes. Ultimately this could include use of Cache scans and other types of atypical data production systems.

Field Summary

Fields inherited from interface org.apache.drill.common.graph.GraphValue

logger

Method Summary

Methods inherited from interface org.apache.drill.exec.physical.base.PhysicalOperator

accept, getCost, getInitialAllocation, getMaxAllocation, getNewWithChildren, getOperatorId, getOperatorType, getSVMode, getUserName, isBufferedOperator, isExecutable, setCost, setMaxAllocation, setOperatorId

Methods inherited from interface org.apache.drill.common.graph.GraphValue

accept

Methods inherited from interface java.lang.Iterable

iterator