Examples of org.pdf4j.saxon.om.Item

org.pdf4j.saxon.om.Item
An Item is an object that can occur as a member of a sequence. It corresponds directly to the concept of an item in the XPath 2.0 data model. There are two kinds of Item: atomic values, and nodes.
This interface is part of the public Saxon API. As such (starting from Saxon 8.4), methods that form part of the stable API are labelled with a JavaDoc "since" tag to identify the Saxon release at which they were introduced.
Note: there is no method getItemType(). This is to avoid having to implement it on every implementation of NodeInfo. Instead, use the static method Type.getItemType(Item). @author Michael H. Kay @since 8.4

    * @param context The context for the evaluation
    * @return the parent of the current node defined by the context
    */


    public NodeInfo getNode(XPathContext context) throws XPathException {
        Item item = context.getContextItem();
        if (item==null) {
            dynamicError("The context item is not set", "XPDY0002", context);
        }
        if (item instanceof NodeInfo) {
            return ((NodeInfo)item).getParent();

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        this.action = action;
    }


    public Item next() throws XPathException {
        while (true) {
            Item nextSource = base.next();
            if (nextSource == null) {
                current = null;
                position = -1;
                return null;
            }

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        this.context = context;
        this.currentIterator = first;
    }


    public Item next() throws XPathException {
        Item n = currentIterator.next();
        if (n == null && currentIterator==first) {
            currentIterator = second.iterate(context);
            n = currentIterator.next();
        }
        if (n == null) {

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        SequenceIterator iter0 = null;


        if (maybeBoolean0) {
            iter0 = operand0.iterate(context);
            Item i01 = iter0.next();
            Item i02 = (i01 == null ? null : iter0.next());
            if (i01 instanceof BooleanValue && i02 == null) {
                boolean b = operand1.effectiveBooleanValue(context);
                return compare((BooleanValue)i01, singletonOperator, BooleanValue.get(b), comparer, context);
            }
            if (i01 == null && !maybeBoolean1) {
                return false;
            }
        }


        // If the second operand is a singleton boolean,
        // compare it with the effective boolean value of the other operand


        SequenceIterator iter1 = null;


        if (maybeBoolean1) {
            iter1 = operand1.iterate(context);
            Item i11 = iter1.next();
            Item i12 = (i11 == null ? null : iter1.next());
            if (i11 instanceof BooleanValue && i12 == null) {
                boolean b = operand0.effectiveBooleanValue(context);
                return compare(BooleanValue.get(b), singletonOperator, (BooleanValue)i11, comparer, context);
            }
            if (i11 == null && !maybeBoolean0) {

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    * Evaluate the expression
    */


    public Item evaluateItem(XPathContext context) throws XPathException {
        SequenceIterator iter = operand.iterate(context);
        Item result = iter.next();
        iter.close();
        return result;
    }

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Related Classes of org.pdf4j.saxon.om.Item

org.pdf4j.saxon.dom.DOMNodeList

org.pdf4j.saxon.event.SequenceCopier

org.pdf4j.saxon.evpull.EventMappingIterator

org.pdf4j.saxon.expr.AppendIterator

org.pdf4j.saxon.expr.AtomicSequenceConverter

org.pdf4j.saxon.expr.CardinalityChecker

org.pdf4j.saxon.expr.CastableExpression

org.pdf4j.saxon.expr.ContextItemExpression

org.pdf4j.saxon.expr.ContextMappingIterator

org.pdf4j.saxon.expr.EveryItemMappingIterator

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