Package org.rumbledb.runtime.functions.xml

Class InScopePrefixesFunctionIterator

java.lang.Object

org.rumbledb.runtime.RuntimeIterator

org.rumbledb.runtime.LocalRuntimeIterator

org.rumbledb.runtime.functions.base.LocalFunctionCallIterator

org.rumbledb.runtime.functions.xml.InScopePrefixesFunctionIterator

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable, Serializable, RuntimeIteratorInterface

public class InScopePrefixesFunctionIterator
extends LocalFunctionCallIterator

Implementation of fn:in-scope-prefixes according to XPath and XQuery Functions and Operators 3.1, Section 14.1. Spec (Functions and Operators 3.1, Section 14.1): "fn:in-scope-prefixes($element as element()) as xs:string*" "Summary: Returns the prefixes of the in-scope namespaces for $element." "Rules: The function returns a sequence of zero or more xs:string values." "For namespace bindings that have a prefix, the prefix is returned." "For the default namespace, if it exists, the zero-length string is returned." "The order of the result is implementation dependent." This function calls namespaceNodes() on the element item, which returns the in-scope namespace nodes computed via parent chaining of declared namespaces, and extracts the prefixes as xs:string* items.

See Also:

• XPath and XQuery Functions and Operators 3.1 : fn:in-scope-prefixes
• 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
InScopePrefixesFunctionIterator(List<RuntimeIterator> parameters, RuntimeStaticContext staticContext)

Method Summary

Modifier and Type	Method	Description
Item	next()
void	open(DynamicContext context)

Methods inherited from class org.rumbledb.runtime.RuntimeIterator

bindToVariableInDynamicContext, canProduceDataFrame, close, deepCopy, generateNativeQuery, getConfiguration, getDataFrame, getEffectiveBooleanValue, getEffectiveBooleanValueOrCheckPosition, getHighestExecutionMode, getMetadata, getOrCreateDataFrame, getPendingUpdateList, getRDD, getRuntimeStaticContext, getStaticType, getVariableDependencies, hasNext, isDataFrame, isLocal, isOpen, isRDD, isRDDOrDataFrame, isSequential, isSparkJobNeeded, isUpdating, materialize, materialize, materializeAtMostOneItemOrDefault, materializeAtMostOneItemOrNull, materializeExactlyOneItem, materializeFirstItemOrNull, materializeNFirstItems, print, printToStandardError, read, reset, setStaticContext, write

Methods inherited from class java.lang.Object

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

Constructor Details

InScopePrefixesFunctionIterator

public InScopePrefixesFunctionIterator(List<RuntimeIterator> parameters,
 RuntimeStaticContext staticContext)

Method Details

open

public void open(DynamicContext context)

Specified by:

open in interface RuntimeIteratorInterface

Overrides:

open in class RuntimeIterator

next

public Item next()

Specified by:

next in interface RuntimeIteratorInterface

Specified by:

next in class RuntimeIterator