Package org.rumbledb.runtime.misc

Class IntegerRangeComparisonIterator

java.lang.Object

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

org.rumbledb.runtime.plan.ItemRuntimePlan

org.rumbledb.runtime.AbstractAtMostOneItemRuntimePlan

org.rumbledb.runtime.misc.IntegerRangeComparisonIterator

All Implemented Interfaces:

Serializable, AtMostOneLocalRuntimePlan<Item>, LocalRuntimePlan<Item>

public final class IntegerRangeComparisonIterator
extends AbstractAtMostOneItemRuntimePlan

General comparison of an integer singleton with a direct integer range. General comparisons are existential: x < (a to b) asks whether any range value exceeds x. For a nonempty range this is simply x < b, so no range items or Spark join are needed. The compiler selects this plan only for integer singletons; other numeric types retain the ordinary comparison path and its numeric-promotion rules.

See Also:

• Serialized Form

Field Summary

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

staticContext

Constructor Summary

Constructors

Constructor	Description
IntegerRangeComparisonIterator(RangeOperationIterator range, ItemRuntimePlan scalar, boolean rangeOnLeft, ComparisonExpression.ComparisonOperator operator, RuntimeStaticContext context)

Method Summary

Modifier and Type	Method	Description
Item	evaluateAtMostOne(DynamicContext context)	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

Constructor Details

IntegerRangeComparisonIterator

public IntegerRangeComparisonIterator(RangeOperationIterator range,
 ItemRuntimePlan scalar,
 boolean rangeOnLeft,
 ComparisonExpression.ComparisonOperator operator,
 RuntimeStaticContext context)

Method Details

evaluateAtMostOne

public Item evaluateAtMostOne(DynamicContext context)

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:

context - the dynamic context for the evaluation

Returns:

the value, or null for the empty sequence