com.saxonica.ee.optim

Class IndexedValue<T extends Item<?>>

java.lang.Object

com.saxonica.ee.optim.SearchableValue<T>

com.saxonica.ee.optim.IndexedValue<T>

All Implemented Interfaces:

java.lang.Iterable<T>, GroundedValue<T>, Sequence<T>

public class IndexedValue<T extends Item<?>>
extends SearchableValue<T>

A representation of a (sequence) value that allows the construction of one or more indexes to provide rapid access to the items in the sequence.

Field Summary

Fields inherited from class com.saxonica.ee.optim.SearchableValue

end, value

Method Summary

Modifier and Type	Method and Description
SequenceIterator<T>	findItems(Expression use, SequenceIterator<? extends AtomicValue> values, boolean convertUntypedToOther, boolean firstOnly, AtomicComparer comparer, XPathContext context) Retrieve items that match a given index value

Methods inherited from class com.saxonica.ee.optim.SearchableValue

effectiveBooleanValue, getLength, getStringValue, getStringValueCS, head, itemAt, iterate, makeSearchableValue, reduce, subsequence

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.om.GroundedValue

asIterable, iterator, materialize, toShortString

Methods inherited from interface net.sf.saxon.om.Sequence

makeRepeatable

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

findItems

public SequenceIterator<T> findItems(Expression use,
                                     SequenceIterator<? extends AtomicValue> values,
                                     boolean convertUntypedToOther,
                                     boolean firstOnly,
                                     AtomicComparer comparer,
                                     XPathContext context)
                              throws XPathException

Retrieve items that match a given index value

Specified by:

findItems in class SearchableValue<T extends Item<?>>

Parameters:

use - the expression whose value is to be matched

values - the set of values to be found

convertUntypedToOther - true if untypedAtomic values are to be converted to the type of the other operand

firstOnly - true if only the first matching item is required

comparer - AtomicComparer used to compare values for equality (encapsulates a collation if necessary)

context - the dynamic evaluation context @return an iterator over the items that match the specified values

Returns:

an iterator over the items that matched

Throws:

XPathException - if an error occurs