Interface GroundedValue<T extends Item>

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

public interface GroundedValue<T extends Item> extends ValueRepresentation<T>
A value that exists in memory and that can be directly addressed
  • Method Details

    • itemAt

      T 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

      GroundedValue<T> 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
    • getLength

      int getLength()
      Get the size of the value (the number of items)
      Returns:
      the number of items in the sequence