Package org.rumbledb.runtime.xml

Class ComputedNamespaceConstructorRuntimeIterator

java.lang.Object

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

org.rumbledb.runtime.plan.ItemRuntimePlan

org.rumbledb.runtime.AbstractAtMostOneItemRuntimePlan

org.rumbledb.runtime.xml.ComputedNamespaceConstructorRuntimeIterator

All Implemented Interfaces:

Serializable, AtMostOneLocalRuntimePlan<Item>, LocalRuntimePlan<Item>

public class ComputedNamespaceConstructorRuntimeIterator
extends AbstractAtMostOneItemRuntimePlan

Runtime iterator for computed namespace constructors.

See Also:

• ComputedNamespaceConstructorExpression
• Serialized Form

Field Summary

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

staticContext

Constructor Summary

Constructors

Constructor	Description
ComputedNamespaceConstructorRuntimeIterator(String staticPrefix, DataFunctionIterator uriIterator, RuntimeStaticContext staticContext)	Constructor for static prefix: namespace prefix { uri }
ComputedNamespaceConstructorRuntimeIterator(DataFunctionIterator prefixIterator, DataFunctionIterator uriIterator, RuntimeStaticContext staticContext)	Constructor for dynamic prefix: namespace { prefixExpression } { uri }

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

Constructor Details

ComputedNamespaceConstructorRuntimeIterator

public ComputedNamespaceConstructorRuntimeIterator(String staticPrefix,
 DataFunctionIterator uriIterator,
 RuntimeStaticContext staticContext)

Constructor for static prefix: namespace prefix { uri }

Parameters:

staticPrefix - The static namespace prefix

uriIterator - The URI iterator (wrapped in AtomizationIterator)

staticContext - The runtime static context

ComputedNamespaceConstructorRuntimeIterator

public ComputedNamespaceConstructorRuntimeIterator(DataFunctionIterator prefixIterator,
 DataFunctionIterator uriIterator,
 RuntimeStaticContext staticContext)

Constructor for dynamic prefix: namespace { prefixExpression } { uri }

Parameters:

prefixIterator - The prefix iterator (wrapped in AtomizationIterator)

uriIterator - The URI iterator (wrapped in AtomizationIterator)

staticContext - The runtime static context

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