Package org.apache.drill.exec.store.mongo

Class MongoSubScan

java.lang.Object

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

org.apache.drill.exec.store.mongo.MongoSubScan

All Implemented Interfaces:

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

public class MongoSubScan
extends AbstractBase
implements SubScan

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MongoSubScan.MongoSubScanSpec
static class	MongoSubScan.ShardedMongoSubScanSpec

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
MongoSubScan(String userName, MongoStoragePlugin storagePlugin, MongoStoragePluginConfig storagePluginConfig, List<BaseMongoSubScanSpec> chunkScanSpecList, List<SchemaPath> columns)
MongoSubScan(StoragePluginRegistry registry, String userName, StoragePluginConfig mongoPluginConfig, LinkedList<BaseMongoSubScanSpec> chunkScanSpecList, List<SchemaPath> columns)

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<BaseMongoSubScanSpec>	getChunkScanSpecList()
List<SchemaPath>	getColumns()
MongoStoragePlugin	getMongoStoragePlugin()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children)	Regenerate with this node with a new set of children.
String	getOperatorType()
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

MongoSubScan

public MongoSubScan(StoragePluginRegistry registry,
 String userName,
 StoragePluginConfig mongoPluginConfig,
 LinkedList<BaseMongoSubScanSpec> chunkScanSpecList,
 List<SchemaPath> columns)

MongoSubScan

public MongoSubScan(String userName,
 MongoStoragePlugin storagePlugin,
 MongoStoragePluginConfig storagePluginConfig,
 List<BaseMongoSubScanSpec> chunkScanSpecList,
 List<SchemaPath> columns)

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

Parameters:

physicalVisitor -

Throws:

E

getMongoStoragePlugin

public MongoStoragePlugin getMongoStoragePlugin()

getColumns

public List<SchemaPath> getColumns()

getChunkScanSpecList

public List<BaseMongoSubScanSpec> getChunkScanSpecList()

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

Parameters:

children -

getOperatorType

public String getOperatorType()

Specified by:

getOperatorType in interface PhysicalOperator

iterator

public Iterator<PhysicalOperator> iterator()

Specified by:

iterator in interface Iterable<PhysicalOperator>