Package org.rumbledb.runtime.xml

Class PostfixLookupIterator

java.lang.Object

org.rumbledb.runtime.RuntimeIterator

org.rumbledb.runtime.HybridRuntimeIterator

org.rumbledb.runtime.xml.PostfixLookupIterator

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable, Serializable, RuntimeIteratorInterface

public class PostfixLookupIterator
extends HybridRuntimeIterator

This Iterator is for the postfix lookup operator in XQuery. It is similar to ObjectLookup in JSONiq but supports both Objects (should be maps in the future) and Arrays. The lookupIterator is null in case we have a wildcard

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.rumbledb.runtime.HybridRuntimeIterator

result

Fields inherited from class org.rumbledb.runtime.RuntimeIterator

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

Constructor Summary

Constructors

Constructor	Description
PostfixLookupIterator(RuntimeIterator object, RuntimeIterator lookupIterator, RuntimeStaticContext staticContext)

Method Summary

Modifier and Type	Method	Description
protected void	closeLocal()
org.apache.spark.api.java.JavaRDD<Item>	getRDDAux(DynamicContext dynamicContext)
protected boolean	hasNextLocal()
Item	nextLocal()
void	openLocal()
protected void	resetLocal()
void	setNextResult()

Methods inherited from class org.rumbledb.runtime.HybridRuntimeIterator

close, dataFrameToRDDOfItems, fallbackToRDDIfDFNotImplemented, getRDD, hasNext, implementsDataFrames, implementsLocal, implementsRDD, materialize, materializeAtMostOneItemOrNull, materializeExactlyOneItem, materializeFirstItemOrNull, materializeNFirstItems, next, open, reset

Methods inherited from class org.rumbledb.runtime.RuntimeIterator

bindToVariableInDynamicContext, canProduceDataFrame, deepCopy, generateNativeQuery, getConfiguration, getDataFrame, getEffectiveBooleanValue, getEffectiveBooleanValueOrCheckPosition, getHighestExecutionMode, getMetadata, getOrCreateDataFrame, getPendingUpdateList, getStaticType, getVariableDependencies, 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

PostfixLookupIterator

public PostfixLookupIterator(RuntimeIterator object,
 RuntimeIterator lookupIterator,
 RuntimeStaticContext staticContext)

Method Details

openLocal

public void openLocal()

Specified by:

openLocal in class HybridRuntimeIterator

hasNextLocal

protected boolean hasNextLocal()

Specified by:

hasNextLocal in class HybridRuntimeIterator

resetLocal

protected void resetLocal()

Specified by:

resetLocal in class HybridRuntimeIterator

closeLocal

protected void closeLocal()

Specified by:

closeLocal in class HybridRuntimeIterator

nextLocal

public Item nextLocal()

Specified by:

nextLocal in class HybridRuntimeIterator

setNextResult

public void setNextResult()

getRDDAux

public org.apache.spark.api.java.JavaRDD<Item> getRDDAux(DynamicContext dynamicContext)

Specified by:

getRDDAux in class HybridRuntimeIterator