Package org.apache.drill.exec.store.kafka

Class KafkaSubScan

java.lang.Object

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

org.apache.drill.exec.store.kafka.KafkaSubScan

All Implemented Interfaces:

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

public class KafkaSubScan
extends AbstractBase
implements SubScan

Field Summary

Fields

Modifier and Type	Field	Description
static final String	OPERATOR_TYPE

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

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation, userName

Constructor Summary

Constructors

Constructor	Description
KafkaSubScan(String userName, KafkaStoragePlugin kafkaStoragePlugin, List<SchemaPath> columns, int records, List<KafkaPartitionScanSpec> partitionSubScanSpecList)
KafkaSubScan(StoragePluginRegistry registry, String userName, KafkaStoragePluginConfig kafkaStoragePluginConfig, List<SchemaPath> columns, int records, LinkedList<KafkaPartitionScanSpec> partitionSubScanSpecList)

Method Summary

Modifier and Type	Method	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()
KafkaStoragePlugin	getKafkaStoragePlugin()
KafkaStoragePluginConfig	getKafkaStoragePluginConfig()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children)	Regenerate with this node with a new set of children.
String	getOperatorType()
List<KafkaPartitionScanSpec>	getPartitionSubScanSpecList()
int	getRecords()
Iterator<PhysicalOperator>	iterator()

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

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

Field Details

OPERATOR_TYPE

public static final String OPERATOR_TYPE

See Also:

• Constant Field Values

Constructor Details

KafkaSubScan

public KafkaSubScan(StoragePluginRegistry registry,
 String userName,
 KafkaStoragePluginConfig kafkaStoragePluginConfig,
 List<SchemaPath> columns,
 int records,
 LinkedList<KafkaPartitionScanSpec> partitionSubScanSpecList)
             throws ExecutionSetupException

Throws:

ExecutionSetupException

KafkaSubScan

public KafkaSubScan(String userName,
 KafkaStoragePlugin kafkaStoragePlugin,
 List<SchemaPath> columns,
 int records,
 List<KafkaPartitionScanSpec> partitionSubScanSpecList)

Method Details

accept

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

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

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

iterator

public Iterator<PhysicalOperator> iterator()

Specified by:

iterator in interface Iterable<PhysicalOperator>

getKafkaStoragePluginConfig

public KafkaStoragePluginConfig getKafkaStoragePluginConfig()

getColumns

public List<SchemaPath> getColumns()

getRecords

public int getRecords()

getPartitionSubScanSpecList

public List<KafkaPartitionScanSpec> getPartitionSubScanSpecList()

getKafkaStoragePlugin

public KafkaStoragePlugin getKafkaStoragePlugin()

getOperatorType

public String getOperatorType()

Specified by:

getOperatorType in interface PhysicalOperator