Package org.apache.drill.exec.store.kudu

Class KuduGroupScan

java.lang.Object

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

org.apache.drill.exec.physical.base.AbstractGroupScan

org.apache.drill.exec.store.kudu.KuduGroupScan

All Implemented Interfaces:

Iterable<PhysicalOperator>, GraphValue<PhysicalOperator>, FragmentLeaf, GroupScan, HasAffinity, Leaf, PhysicalOperator, Scan

public class KuduGroupScan
extends AbstractGroupScan

Field Summary

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

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation, userName

Fields inherited from interface org.apache.drill.exec.physical.base.GroupScan

ALL_COLUMNS

Constructor Summary

Constructors

Constructor	Description
KuduGroupScan()	Empty constructor, do not use, only for testing.
KuduGroupScan(KuduScanSpec kuduScanSpec, KuduStoragePluginConfig kuduStoragePluginConfig, List<SchemaPath> columns, StoragePluginRegistry pluginRegistry)
KuduGroupScan(KuduStoragePlugin kuduStoragePlugin, KuduScanSpec kuduScanSpec, List<SchemaPath> columns)

Method Summary

Modifier and Type	Method	Description
void	applyAssignments(List<CoordinationProtos.DrillbitEndpoint> incomingEndpoints)
boolean	canPushdownProjects(List<SchemaPath> columns)	GroupScan should check the list of columns, and see if it could support all the columns in the list.
GroupScan	clone(List<SchemaPath> columns)	Returns a clone of GroupScan instance, except that the new GroupScan will use the provided list of columns .
List<SchemaPath>	getColumns()	Returns a list of columns scanned by this group scan
String	getDigest()	Returns a signature of the GroupScan which should usually be composed of all its attributes which could describe it uniquely.
KuduScanSpec	getKuduScanSpec()
KuduStoragePluginConfig	getKuduStoragePluginConfig()
int	getMaxParallelizationWidth()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children)	Regenerate with this node with a new set of children.
List<EndpointAffinity>	getOperatorAffinity()	Get the list of Endpoints with associated affinities that this operator has preference for.
ScanStats	getScanStats()
KuduSubScan	getSpecificScan(int minorFragmentId)
KuduStoragePlugin	getStoragePlugin()
String	getTableName()
boolean	isFilterPushedDown()
void	setFilterPushedDown(boolean b)
void	setKuduScanSpec(KuduScanSpec kuduScanSpec)	Do not use, only for testing.
String	toString()

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

accept, applyFilter, applyLimit, enforceWidth, getAnalyzeInfoProvider, getColumnValueCount, getDistributionAffinity, getFiles, getFilter, getInitialAllocation, getMaxAllocation, getMetadataProvider, getMinParallelizationWidth, getOperatorType, getPartitionColumns, getScanStats, getScanStats, getSelectionRoot, getTableMetadata, hasFiles, isDistributed, isExecutable, iterator, supportsFilterPushDown, supportsLimitPushdown, supportsPartitionFilterPushdown, usedMetastore

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

accept, getCost, getOperatorId, getSVMode, getUserName, isBufferedOperator, setCost, setMaxAllocation, setOperatorId

Methods inherited from class java.lang.Object

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

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

accept

Methods inherited from interface java.lang.Iterable

forEach, spliterator

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

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

Constructor Details

KuduGroupScan

public KuduGroupScan(KuduScanSpec kuduScanSpec,
 KuduStoragePluginConfig kuduStoragePluginConfig,
 List<SchemaPath> columns,
 StoragePluginRegistry pluginRegistry)
              throws IOException,
ExecutionSetupException

Throws:

IOException

ExecutionSetupException

KuduGroupScan

public KuduGroupScan(KuduStoragePlugin kuduStoragePlugin,
 KuduScanSpec kuduScanSpec,
 List<SchemaPath> columns)

KuduGroupScan

public KuduGroupScan()

Empty constructor, do not use, only for testing.

Method Details

clone

public GroupScan clone(List<SchemaPath> columns)

Description copied from interface: GroupScan

Returns a clone of GroupScan instance, except that the new GroupScan will use the provided list of columns .

Specified by:

clone in interface GroupScan

Overrides:

clone in class AbstractGroupScan

getOperatorAffinity

public List<EndpointAffinity> getOperatorAffinity()

Description copied from interface: HasAffinity

Get the list of Endpoints with associated affinities that this operator has preference for.

Specified by:

getOperatorAffinity in interface HasAffinity

Overrides:

getOperatorAffinity in class AbstractGroupScan

Returns:

List of EndpointAffinity objects.

getMaxParallelizationWidth

public int getMaxParallelizationWidth()

applyAssignments

public void applyAssignments(List<CoordinationProtos.DrillbitEndpoint> incomingEndpoints)

Parameters:

incomingEndpoints -

getSpecificScan

public KuduSubScan getSpecificScan(int minorFragmentId)

getScanStats

public ScanStats getScanStats()

Overrides:

getScanStats in class AbstractGroupScan

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.

Parameters:

children -

getStoragePlugin

public KuduStoragePlugin getStoragePlugin()

getTableName

public String getTableName()

getDigest

public String getDigest()

Description copied from interface: GroupScan

Returns a signature of the GroupScan which should usually be composed of all its attributes which could describe it uniquely.

toString

public String toString()

Overrides:

toString in class Object

getKuduStoragePluginConfig

public KuduStoragePluginConfig getKuduStoragePluginConfig()

getColumns

public List<SchemaPath> getColumns()

Description copied from interface: GroupScan

Returns a list of columns scanned by this group scan

Specified by:

getColumns in interface GroupScan

Overrides:

getColumns in class AbstractGroupScan

getKuduScanSpec

public KuduScanSpec getKuduScanSpec()

canPushdownProjects

public boolean canPushdownProjects(List<SchemaPath> columns)

Description copied from interface: GroupScan

GroupScan should check the list of columns, and see if it could support all the columns in the list.

Specified by:

canPushdownProjects in interface GroupScan

Overrides:

canPushdownProjects in class AbstractGroupScan

setFilterPushedDown

public void setFilterPushedDown(boolean b)

isFilterPushedDown

public boolean isFilterPushedDown()

setKuduScanSpec

public void setKuduScanSpec(KuduScanSpec kuduScanSpec)

Do not use, only for testing.