public class BigRangeIterator extends java.lang.Object implements AtomicIterator<IntegerValue>, LastPositionFinder, LookaheadIterator
SequenceIterator.Property
Constructor and Description |
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BigRangeIterator(java.math.BigInteger start,
java.math.BigInteger end)
Create an iterator over a range of monotonically increasing integers
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Modifier and Type | Method and Description |
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int |
getLength()
Get the last position (that is, the number of items in the sequence).
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java.util.EnumSet<SequenceIterator.Property> |
getProperties()
Get properties of this iterator, as a bit-significant integer.
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boolean |
hasNext()
Determine whether there are more items to come.
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IntegerValue |
next()
Get the next atomic value in the sequence.
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
forEach, toList
close, forEachOrFail, materialize
public BigRangeIterator(java.math.BigInteger start, java.math.BigInteger end) throws XPathException
start
- the first integer in the sequenceend
- the last integer in the sequence. Must be >= start.XPathException
- if for example the end is before the startpublic boolean hasNext()
LookaheadIterator
This method must not be called unless the result of getProperties() on the iterator
includes the property SequenceIterator.Property.LOOKAHEAD
hasNext
in interface LookaheadIterator
public IntegerValue next()
AtomicIterator
next
in interface SequenceIterator
next
in interface AtomicIterator<IntegerValue>
next
in interface UnfailingIterator
public int getLength()
LastPositionFinder
SequenceIterator.Property.LAST_POSITION_FINDER
getLength
in interface LastPositionFinder
public java.util.EnumSet<SequenceIterator.Property> getProperties()
getProperties
in interface SequenceIterator
SequenceIterator.Property.GROUNDED
, SequenceIterator.Property.LAST_POSITION_FINDER
,
and SequenceIterator.Property.LOOKAHEAD
. It is always
acceptable to return the value zero, indicating that there are no known special properties.
It is acceptable for the properties of the iterator to change depending on its state.Copyright (c) 2004-2020 Saxonica Limited. All rights reserved.