Package org.rumbledb.spark.ml

Class GetTransformerFunctionIterator

java.lang.Object

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

org.rumbledb.runtime.plan.ItemRuntimePlan

org.rumbledb.runtime.AbstractAtMostOneItemRuntimePlan

org.rumbledb.spark.ml.GetTransformerFunctionIterator

All Implemented Interfaces:

Serializable, AtMostOneLocalRuntimePlan<Item>, LocalRuntimePlan<Item>

public class GetTransformerFunctionIterator
extends AbstractAtMostOneItemRuntimePlan

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final List<Name>	transformerParameterNames

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

staticContext

Constructor Summary

Constructors

Constructor	Description
GetTransformerFunctionIterator(List<ItemRuntimePlan> arguments, RuntimeStaticContext staticContext)

Method Summary

Modifier and Type	Method	Description
Item	evaluateAtMostOne(DynamicContext dynamicContext)	Evaluates the plan without allocating a cursor.

Methods inherited from class org.rumbledb.runtime.AbstractAtMostOneItemRuntimePlan

createNativeCursor

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

Field Details

transformerParameterNames

public static final List<Name> transformerParameterNames

Constructor Details

GetTransformerFunctionIterator

public GetTransformerFunctionIterator(List<ItemRuntimePlan> arguments,
 RuntimeStaticContext staticContext)

Method Details

evaluateAtMostOne

public Item evaluateAtMostOne(DynamicContext dynamicContext)

Description copied from interface: AtMostOneLocalRuntimePlan

Evaluates the plan without allocating a cursor.

Specified by:

evaluateAtMostOne in interface AtMostOneLocalRuntimePlan<Item>

Specified by:

evaluateAtMostOne in class AbstractAtMostOneItemRuntimePlan

Parameters:

dynamicContext - the dynamic context for the evaluation

Returns:

the value, or null for the empty sequence