org.apache.drill.exec.store.mapr.db

Class MapRDBSubScan

java.lang.Object

org.apache.drill.exec.physical.base.AbstractBase

org.apache.drill.exec.physical.base.AbstractSubScan

org.apache.drill.exec.physical.base.AbstractDbSubScan

org.apache.drill.exec.store.mapr.db.MapRDBSubScan

All Implemented Interfaces:

Iterable<PhysicalOperator>, GraphValue<PhysicalOperator>, DbSubScan, FragmentLeaf, Leaf, PhysicalOperator, Scan, SubScan

Direct Known Subclasses:

RestrictedMapRDBSubScan

public class MapRDBSubScan
extends AbstractDbSubScan

Field Summary

Fields

Modifier and Type	Field and Description
static String	OPERATOR_TYPE

Fields inherited from class org.apache.drill.exec.physical.base.AbstractBase

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation

Constructor Summary

Constructors

Constructor and Description
MapRDBSubScan(StoragePluginRegistry engineRegistry, String userName, MapRDBFormatPluginConfig formatPluginConfig, StoragePluginConfig storageConfig, List<MapRDBSubScanSpec> regionScanSpecList, List<SchemaPath> columns, int maxRecordsToRead, String tableType, TupleMetadata schema)
MapRDBSubScan(String userName, MapRDBFormatPlugin formatPlugin, List<MapRDBSubScanSpec> maprSubScanSpecs, List<SchemaPath> columns, int maxRecordsToRead, String tableType, TupleMetadata schema)
MapRDBSubScan(String userName, MapRDBFormatPlugin formatPlugin, List<MapRDBSubScanSpec> maprSubScanSpecs, List<SchemaPath> columns, String tableType, TupleMetadata schema)

Method Summary

Modifier and Type	Method and Description
<T,X,E extends Throwable> T	accept(PhysicalVisitor<T,X,E> physicalVisitor, X value) Provides capability to build a set of output based on traversing a query graph tree.
List<SchemaPath>	getColumns()
MapRDBFormatPlugin	getFormatPlugin()
MapRDBFormatPluginConfig	getFormatPluginConfig()
int	getMaxRecordsToRead()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children) Regenerate with this node with a new set of children.
String	getOperatorType()
List<MapRDBSubScanSpec>	getRegionScanSpecList()
TupleMetadata	getSchema()
StoragePluginConfig	getStorageConfig()
String	getTableType()
boolean	isExecutable() Describes whether or not a particular physical operator can actually be executed.
Iterator<PhysicalOperator>	iterator()

Methods inherited from class org.apache.drill.exec.physical.base.AbstractDbSubScan

addJoinForRestrictedSubScan, isRestrictedSubScan

Methods inherited from class org.apache.drill.exec.physical.base.AbstractSubScan

accept, getSVMode

Methods inherited from class org.apache.drill.exec.physical.base.AbstractBase

getCost, getInitialAllocation, getMaxAllocation, getOperatorId, getUserName, isBufferedOperator, setCost, setMaxAllocation, setOperatorId

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

getCost, getInitialAllocation, getMaxAllocation, getOperatorId, getSVMode, getUserName, isBufferedOperator, setCost, setMaxAllocation, setOperatorId

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

accept

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

OPERATOR_TYPE

public static final String OPERATOR_TYPE

See Also:

Constant Field Values

Constructor Detail

MapRDBSubScan

public MapRDBSubScan(StoragePluginRegistry engineRegistry,
                     String userName,
                     MapRDBFormatPluginConfig formatPluginConfig,
                     StoragePluginConfig storageConfig,
                     List<MapRDBSubScanSpec> regionScanSpecList,
                     List<SchemaPath> columns,
                     int maxRecordsToRead,
                     String tableType,
                     TupleMetadata schema)
              throws ExecutionSetupException

Throws:

ExecutionSetupException

MapRDBSubScan

public MapRDBSubScan(String userName,
                     MapRDBFormatPlugin formatPlugin,
                     List<MapRDBSubScanSpec> maprSubScanSpecs,
                     List<SchemaPath> columns,
                     String tableType,
                     TupleMetadata schema)

MapRDBSubScan

public MapRDBSubScan(String userName,
                     MapRDBFormatPlugin formatPlugin,
                     List<MapRDBSubScanSpec> maprSubScanSpecs,
                     List<SchemaPath> columns,
                     int maxRecordsToRead,
                     String tableType,
                     TupleMetadata schema)

Method Detail

getFormatPluginConfig

public MapRDBFormatPluginConfig getFormatPluginConfig()

getStorageConfig

public StoragePluginConfig getStorageConfig()

getRegionScanSpecList

public List<MapRDBSubScanSpec> getRegionScanSpecList()

getColumns

public List<SchemaPath> getColumns()

getMaxRecordsToRead

public int getMaxRecordsToRead()

getTableType

public String getTableType()

getSchema

public TupleMetadata getSchema()

isExecutable

public boolean isExecutable()

Description copied from interface: PhysicalOperator

Describes whether or not a particular physical operator can actually be executed. Most physical operators can be executed. However, Exchange nodes cannot be executed. In order to be executed, they must be converted into their Exec sub components.

Specified by:

isExecutable in interface PhysicalOperator

Overrides:

isExecutable in class AbstractSubScan

accept

public <T,X,E extends Throwable> T accept(PhysicalVisitor<T,X,E> physicalVisitor,
                                          X value)
                                   throws E extends Throwable

Description copied from interface: PhysicalOperator

Provides capability to build a set of output based on traversing a query graph tree.

Specified by:

accept in interface PhysicalOperator

Overrides:

accept in class AbstractSubScan

Throws:

E extends Throwable

getNewWithChildren

public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children)

Description copied from interface: PhysicalOperator

Regenerate with this node with a new set of children. This is used in the case of materialization or optimization.

Specified by:

getNewWithChildren in interface PhysicalOperator

Overrides:

getNewWithChildren in class AbstractSubScan

iterator

public Iterator<PhysicalOperator> iterator()

Specified by:

iterator in interface Iterable<PhysicalOperator>

Overrides:

iterator in class AbstractSubScan

getOperatorType

public String getOperatorType()

getFormatPlugin

public MapRDBFormatPlugin getFormatPlugin()