Package org.rumbledb.runtime.xml

Class ComputedAttributeConstructorRuntimeIterator

java.lang.Object

org.rumbledb.runtime.RuntimeIterator

org.rumbledb.runtime.AtMostOneItemLocalRuntimeIterator

org.rumbledb.runtime.xml.ComputedAttributeConstructorRuntimeIterator

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable, Serializable, RuntimeIteratorInterface

public class ComputedAttributeConstructorRuntimeIterator
extends AtMostOneItemLocalRuntimeIterator

Runtime iterator for computed attribute constructors.

See Also:

• ComputedAttributeConstructorExpression
• Serialized Form

Field Summary

Fields inherited from class org.rumbledb.runtime.RuntimeIterator

children, currentDynamicContextForLocalExecution, FLOW_EXCEPTION_MESSAGE, hasNext, isOpen, isSequential, isUpdating, staticContext, staticURI

Constructor Summary

Constructors

Constructor	Description
ComputedAttributeConstructorRuntimeIterator(String staticAttributeName, AtomizationIterator contentExpression, RuntimeStaticContext staticContext)	Constructor for static attribute name: attribute attributeName { value }
ComputedAttributeConstructorRuntimeIterator(AtomizationIterator nameIterator, AtomizationIterator contentExpression, RuntimeStaticContext staticContext)	Constructor for dynamic attribute name: attribute { nameExpression } { value }

Method Summary

Modifier and Type	Method	Description
Item	materializeFirstItemOrNull(DynamicContext dynamicContext)

Methods inherited from class org.rumbledb.runtime.AtMostOneItemLocalRuntimeIterator

close, getEffectiveBooleanValueOrCheckPosition, getRDD, materialize, materializeAtMostOneItemOrNull, materializeExactlyOneItem, materializeNFirstItems, next, open, reset

Methods inherited from class org.rumbledb.runtime.RuntimeIterator

bindToVariableInDynamicContext, canProduceDataFrame, deepCopy, generateNativeQuery, getConfiguration, getDataFrame, getEffectiveBooleanValue, getHighestExecutionMode, getMetadata, getOrCreateDataFrame, getPendingUpdateList, getStaticType, getVariableDependencies, hasNext, isDataFrame, isLocal, isOpen, isRDD, isRDDOrDataFrame, isSequential, isSparkJobNeeded, isUpdating, materialize, materializeAtMostOneItemOrDefault, print, printToStandardError, read, setStaticContext, write

Methods inherited from class java.lang.Object

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

Constructor Details

ComputedAttributeConstructorRuntimeIterator

public ComputedAttributeConstructorRuntimeIterator(String staticAttributeName,
 AtomizationIterator contentExpression,
 RuntimeStaticContext staticContext)

Constructor for static attribute name: attribute attributeName { value }

Parameters:

staticAttributeName - The static attribute name

contentExpression - The value iterator

staticContext - The runtime static context

ComputedAttributeConstructorRuntimeIterator

public ComputedAttributeConstructorRuntimeIterator(AtomizationIterator nameIterator,
 AtomizationIterator contentExpression,
 RuntimeStaticContext staticContext)

Constructor for dynamic attribute name: attribute { nameExpression } { value }

Parameters:

nameIterator - The dynamic attribute name iterator (wrapped in AtomizationIterator)

contentExpression - The value iterator

staticContext - The runtime static context

Method Details

materializeFirstItemOrNull

public Item materializeFirstItemOrNull(DynamicContext dynamicContext)

Specified by:

materializeFirstItemOrNull in class AtMostOneItemLocalRuntimeIterator