Package org.rumbledb.runtime.primary

Class ObjectConstructorRuntimeIterator

java.lang.Object

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

org.rumbledb.runtime.plan.ItemRuntimePlan

org.rumbledb.runtime.AbstractAtMostOneItemRuntimePlan

org.rumbledb.runtime.primary.ObjectConstructorRuntimeIterator

All Implemented Interfaces:

Serializable, AtMostOneLocalRuntimePlan<Item>, LocalRuntimePlan<Item>, NativeQueryRuntimePlan

public class ObjectConstructorRuntimeIterator
extends AbstractAtMostOneItemRuntimePlan
implements NativeQueryRuntimePlan

See Also:

• Serialized Form

Field Summary

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

staticContext

Constructor Summary

Constructors

Constructor	Description
ObjectConstructorRuntimeIterator(List<? extends ItemRuntimePlan> keys, List<? extends ItemRuntimePlan> values, RuntimeStaticContext staticContext, boolean mutable)
ObjectConstructorRuntimeIterator(List<? extends ItemRuntimePlan> childExpressions, RuntimeStaticContext staticContext, boolean mutable)

Method Summary

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

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

Constructor Details

ObjectConstructorRuntimeIterator

public ObjectConstructorRuntimeIterator(List<? extends ItemRuntimePlan> keys,
 List<? extends ItemRuntimePlan> values,
 RuntimeStaticContext staticContext,
 boolean mutable)

ObjectConstructorRuntimeIterator

public ObjectConstructorRuntimeIterator(List<? extends ItemRuntimePlan> childExpressions,
 RuntimeStaticContext staticContext,
 boolean mutable)

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

generateNativeQuery

public NativeClauseContext generateNativeQuery(NativeClauseContext nativeClauseContext)

Specified by:

generateNativeQuery in interface NativeQueryRuntimePlan