Package net.sf.saxon.om

Examples of net.sf.saxon.om.SequenceIterator

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    */

    public SequenceIterator iterate(XPathContext context) throws XPathException {
        final XPathContextMajor cm = (XPathContextMajor)context;
        while (true) {
            SequenceIterator iter = operand.iterate(cm);
            ValueRepresentation extent = SequenceExtent.makeSequenceExtent(iter);
            UserFunction fn = cm.getTailCallFunction();
            if (fn == null) {
                return Value.asIterator(extent);
            }
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    public boolean effectiveBooleanValue(XPathContext context) throws XPathException {

        // First create an iteration of the base sequence.

        SequenceIterator base = sequence.iterate(context);

        // Now test to see if some or all of the tests are true. The same
        // logic is used for the SOME and EVERY operators

        final boolean some = (operator==Token.SOME);
        int slot = getLocalSlotNumber();
        while (true) {
            final Item it = base.next();
            if (it == null) {
                break;
            }
            context.setLocalVariable(slot, it);
            if (some == action.effectiveBooleanValue(context)) {
                base.close();
                return some;
            }
        }
        return !some;
    }
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    }

    public XQResultSequence executeQuery() throws XQException {
        checkNotClosed();
        try {
            SequenceIterator iter = expression.iterator(context);
            if (scrollable) {
                Value value = Value.asValue(SequenceExtent.makeSequenceExtent(iter));
                return new SaxonXQSequence(value, this);
            } else {
                return new SaxonXQForwardSequence(iter, this);
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     * @throws XPathException
     */

    protected void processItem(HashMap<ComparisonKey, List<Item>> index,
                               Item item, XPathContext c2) throws XPathException {
        SequenceIterator keys = keyExpression.iterate(c2);
        boolean firstKey = true;
        while (true) {
            AtomicValue key = (AtomicValue) keys.next();
            if (key==null) {
                break;
            }
            ComparisonKey comparisonKey = comparer.getComparisonKey(key);
            List<Item> g = index.get(comparisonKey);
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     * Enumerate the results of the expression
     */

    public SequenceIterator iterate(XPathContext context) throws XPathException {

        SequenceIterator iter = select.iterate(context);
        if (iter instanceof EmptyIterator) {
            return iter;
        }
        XPathContext xpc = context.newMinorContext();
        xpc.setOrigin(this);
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    public boolean matches(Value value, Configuration config) throws XPathException {
        if (!Cardinality.subsumes(cardinality, value.getCardinality())) {
            return false;
        }
        SequenceIterator iter = value.iterate();
        while (true) {
            Item item = iter.next();
            if (item == null) {
                return true;
            }
             if (!primaryType.matchesItem(item, false, config)) {
                 return false;
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    public AtomicValue getCurrentGroupingKey() {
        return (AtomicValue)nodeKeys[(position-1)*recordSize+comparators.length+2];
    }

    public SequenceIterator iterateCurrentGroup() throws XPathException {
        SequenceIterator iter =
                (SequenceIterator)nodeKeys[(position-1)*recordSize+comparators.length+3];
        return iter.getAnother();
    }
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                }
            }
            Item nextSource = base.next();
            if (nextSource != null) {
                // Call the supplied mapping function
                SequenceIterator obj = action.map(nextSource);

                // The result may be null (representing an empty sequence),
                //  or a SequenceIterator (any sequence)

                if (obj != null) {
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        }
        base.close();
    }

    public SequenceIterator getAnother() throws XPathException {
        SequenceIterator newBase = base.getAnother();
        MappingFunction newAction = action instanceof StatefulMappingFunction ?
                ((StatefulMappingFunction)action).getAnother() :
                action;
        return new MappingIterator(newBase, newAction);
    }
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    public SequenceIterator iterate(final XPathContext context) throws XPathException {

        // This class delivers the result of the expression in unsorted order,
        // without removal of duplicates.

        SequenceIterator result = start.iterate(context);
        XPathContext context2 = context.newMinorContext();
        context2.setCurrentIterator(result);
        context2.setOrigin(this);
        context2.setOriginatingConstructType(Location.PATH_EXPRESSION);
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Related Classes of net.sf.saxon.om.SequenceIterator

  • net.sf.saxon.dom.DOMNodeList
  • net.sf.saxon.evpull.Decomposer
  • net.sf.saxon.expr.AtomicMappingExpression
  • net.sf.saxon.expr.AtomicSequenceConverter
  • net.sf.saxon.expr.CardinalityChecker
  • net.sf.saxon.expr.CastableExpression
  • net.sf.saxon.expr.ComputedExpression
  • net.sf.saxon.expr.ContextMappingIterator
  • net.sf.saxon.expr.ConvertToString
  • net.sf.saxon.expr.FilterExpression
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