org.apache.drill.exec.store.parquet

Class ParquetRowGroupScan

java.lang.Object

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

org.apache.drill.exec.store.parquet.ParquetRowGroupScan

All Implemented Interfaces:

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

public class ParquetRowGroupScan
extends AbstractBase
implements SubScan

Field Summary

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

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation

Constructor Summary

Constructors

Constructor and Description
ParquetRowGroupScan(StoragePluginRegistry registry, String userName, StoragePluginConfig storageConfig, FormatPluginConfig formatConfig, LinkedList<RowGroupReadEntry> rowGroupReadEntries, List<SchemaPath> columns, String selectionRoot, LogicalExpression filter)
ParquetRowGroupScan(String userName, ParquetFormatPlugin formatPlugin, List<RowGroupReadEntry> rowGroupReadEntries, List<SchemaPath> columns, String selectionRoot, LogicalExpression filter)

Method Summary

Methods

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()
StoragePluginConfig	getEngineConfig()
LogicalExpression	getFilter()
ParquetFormatConfig	getFormatConfig()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children) Regenerate with this node with a new set of children.
int	getOperatorType()
List<RowGroupReadEntry>	getRowGroupReadEntries()
String	getSelectionRoot()
ParquetFormatPlugin	getStorageEngine()
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.AbstractBase

accept, getCost, getInitialAllocation, getMaxAllocation, getOperatorId, getSVMode, 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

Constructor Detail

ParquetRowGroupScan

public ParquetRowGroupScan(StoragePluginRegistry registry,
                   String userName,
                   StoragePluginConfig storageConfig,
                   FormatPluginConfig formatConfig,
                   LinkedList<RowGroupReadEntry> rowGroupReadEntries,
                   List<SchemaPath> columns,
                   String selectionRoot,
                   LogicalExpression filter)
                    throws ExecutionSetupException

Throws:

ExecutionSetupException

ParquetRowGroupScan

public ParquetRowGroupScan(String userName,
                   ParquetFormatPlugin formatPlugin,
                   List<RowGroupReadEntry> rowGroupReadEntries,
                   List<SchemaPath> columns,
                   String selectionRoot,
                   LogicalExpression filter)

Method Detail

getRowGroupReadEntries

public List<RowGroupReadEntry> getRowGroupReadEntries()

getEngineConfig

public StoragePluginConfig getEngineConfig()

getFormatConfig

public ParquetFormatConfig getFormatConfig()

Returns:

Parquet plugin format config

getSelectionRoot

public String getSelectionRoot()

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 AbstractBase

Returns:

getStorageEngine

public ParquetFormatPlugin getStorageEngine()

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

Returns:

Throws:

E extends Throwable

getNewWithChildren

public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children)
                                    throws ExecutionSetupException

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

Returns:

Throws:

ExecutionSetupException

iterator

public Iterator<PhysicalOperator> iterator()

Specified by:

iterator in interface Iterable<PhysicalOperator>

getColumns

public List<SchemaPath> getColumns()

getFilter

public LogicalExpression getFilter()

getOperatorType

public int getOperatorType()

Specified by:

getOperatorType in interface PhysicalOperator