org.apache.drill.exec.store.openTSDB

Class OpenTSDBGroupScan

java.lang.Object

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

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

org.apache.drill.exec.store.openTSDB.OpenTSDBGroupScan

All Implemented Interfaces:

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

public class OpenTSDBGroupScan
extends AbstractGroupScan

Field Summary

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

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation

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

ALL_COLUMNS

Constructor Summary

Constructors

Constructor and Description
OpenTSDBGroupScan(OpenTSDBScanSpec openTSDBScanSpec, OpenTSDBStoragePluginConfig openTSDBStoragePluginConfig, List<SchemaPath> columns, StoragePluginRegistry pluginRegistry)
OpenTSDBGroupScan(OpenTSDBStoragePlugin storagePlugin, OpenTSDBScanSpec scanSpec, List<SchemaPath> columns)

Method Summary

Modifier and Type	Method and 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.
int	getMaxParallelizationWidth()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children) Regenerate with this node with a new set of children.
OpenTSDBScanSpec	getOpenTSDBScanSpec()
ScanStats	getScanStats()
OpenTSDBSubScan	getSpecificScan(int minorFragmentId)
OpenTSDBStoragePluginConfig	getStoragePluginConfig()
String	getTableName()
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, getOperatorAffinity, getOperatorType, getPartitionColumns, 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.exec.physical.base.PhysicalOperator

getCost, 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

Constructor Detail

OpenTSDBGroupScan

public OpenTSDBGroupScan(OpenTSDBScanSpec openTSDBScanSpec,
                         OpenTSDBStoragePluginConfig openTSDBStoragePluginConfig,
                         List<SchemaPath> columns,
                         StoragePluginRegistry pluginRegistry)
                  throws IOException,
                         ExecutionSetupException

Throws:

IOException

ExecutionSetupException

OpenTSDBGroupScan

public OpenTSDBGroupScan(OpenTSDBStoragePlugin storagePlugin,
                         OpenTSDBScanSpec scanSpec,
                         List<SchemaPath> columns)

Method Detail

getMaxParallelizationWidth

public int getMaxParallelizationWidth()

applyAssignments

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

getSpecificScan

public OpenTSDBSubScan 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.

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.

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

getTableName

public String getTableName()

getOpenTSDBScanSpec

public OpenTSDBScanSpec getOpenTSDBScanSpec()

getStoragePluginConfig

public OpenTSDBStoragePluginConfig getStoragePluginConfig()

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

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

toString

public String toString()

Overrides:

toString in class Object