Package org.rumbledb.runtime.update.expression

Class TransformExpressionIterator

java.lang.Object

org.rumbledb.runtime.plan.RuntimePlan<Item>

org.rumbledb.runtime.plan.ItemRuntimePlan

org.rumbledb.runtime.update.expression.TransformExpressionIterator

All Implemented Interfaces:

Serializable, LocalRuntimePlan<Item>, RDDRuntimePlan<Item>, UpdatingRuntimePlan

public class TransformExpressionIterator
extends ItemRuntimePlan
implements LocalRuntimePlan<Item>, RDDRuntimePlan<Item>, UpdatingRuntimePlan

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.rumbledb.runtime.plan.RuntimePlan

staticContext

Constructor Summary

Constructors

Constructor	Description
TransformExpressionIterator(Map<Name,? extends ItemRuntimePlan> copyDeclMap, ItemRuntimePlan modifyIterator, ItemRuntimePlan returnIterator, RuntimeStaticContext staticContext, int mutabilityLevel, boolean resultMutable)

Method Summary

Modifier and Type	Method	Description
Cursor<Item>	createNativeCursor(DynamicContext context)	Creates an independent cursor for one native local evaluation.
org.apache.spark.api.java.JavaRDD<Item>	createNativeRDD(DynamicContext context)	Builds the RDD for one evaluation.
PendingUpdateList	getPendingUpdateList(DynamicContext context)

Methods inherited from class org.rumbledb.runtime.plan.ItemRuntimePlan

getChild, getChildren, getStaticType, getVariableDependencies, isSparkJobNeeded, print

Methods inherited from class org.rumbledb.runtime.plan.RuntimePlan

getConfiguration, getCursor, getDataFrame, getMetadata, getRDD, getRuntimeStaticContext, materialize, materializeAtMost, materializeAtMostOne, materializeExactlyOne, materializeFirstOrNull

Methods inherited from class java.lang.Object

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

Constructor Details

TransformExpressionIterator

public TransformExpressionIterator(Map<Name,? extends ItemRuntimePlan> copyDeclMap,
 ItemRuntimePlan modifyIterator,
 ItemRuntimePlan returnIterator,
 RuntimeStaticContext staticContext,
 int mutabilityLevel,
 boolean resultMutable)

Method Details

createNativeCursor

public Cursor<Item> createNativeCursor(DynamicContext context)

Description copied from interface: LocalRuntimePlan

Creates an independent cursor for one native local evaluation.

Specified by:

createNativeCursor in interface LocalRuntimePlan<Item>

Parameters:

context - the dynamic context for that evaluation

Returns:

an unopened cursor

createNativeRDD

public org.apache.spark.api.java.JavaRDD<Item> createNativeRDD(DynamicContext context)

Description copied from interface: RDDRuntimePlan

Builds the RDD for one evaluation.

Specified by:

createNativeRDD in interface RDDRuntimePlan<Item>

Parameters:

context - the dynamic context for that evaluation

Returns:

the resulting RDD

getPendingUpdateList

public PendingUpdateList getPendingUpdateList(DynamicContext context)

Specified by:

getPendingUpdateList in interface UpdatingRuntimePlan