net.sf.saxon.om

Interface GroundedValue

All Superinterfaces:
ValueRepresentation
Known Implementing Classes:
AnyURIValue, AtomicValue, Base64BinaryValue, BigIntegerValue, BooleanValue, CalendarValue, DateTimeValue, DateValue, DayTimeDurationValue, DecimalValue, DotNetObjectValue, DoubleValue, DurationValue, EmptySequence, FloatValue, GDateValue, GDayValue, GMonthDayValue, GMonthValue, GYearMonthValue, GYearValue, HexBinaryValue, Int64Value, IntegerRange, IntegerValue, NotationValue, NumericValue, ObjectValue, QNameValue, QualifiedNameValue, SequenceExtent, SingletonNode, StringValue, TimeValue, UntypedAtomicValue, YearMonthDurationValue

public interface GroundedValue
extends ValueRepresentation

A value that exists in memory and that can be directly addressed

Fields inherited from interface net.sf.saxon.om.ValueRepresentation

EMPTY_VALUE_ARRAY

Method Summary

Item
itemAt(int n)
Get the n'th item in the value, counting from 0
GroundedValue
subsequence(int start, int length)
Get a subsequence of the value

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

getStringValue, getStringValueCS

Method Details

itemAt

public Item itemAt(int n)
Get the n'th item in the value, counting from 0
Parameters:
n - the index of the required item, with 0 representing the first item in the sequence
Returns:
the n'th item if it exists, or null otherwise

subsequence

public GroundedValue subsequence(int start,
                                 int length)
Get a subsequence of the value
Parameters:
start - the index of the first item to be included in the result, counting from zero. A negative value is taken as zero. If the value is beyond the end of the sequence, an empty sequence is returned
length - the number of items to be included in the result. Specify Integer.MAX_VALUE to get the subsequence up to the end of the base sequence. If the value is negative, an empty sequence is returned. If the value goes off the end of the sequence, the result returns items up to the end of the sequence
Returns:
the required subsequence. If min is