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


    public static DOMNodeList checkAndMake(SequenceExtent extent) throws XPathException {
        SequenceIterator it = extent.iterate();
        List list = new ArrayList(extent.getLength());
        while (true) {
            Item next = it.next();
            if (next==null) break;
            Object o = next;
            if (!(o instanceof NodeInfo)) {
                throw new XPathException("Supplied sequence contains an item that is not a Saxon NodeInfo");
            }

View Full Code Here

        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;

View Full Code Here


        public Item evaluateItem(XPathContext context) throws XPathException {


            // Prepare the SQL statement (only do this once)


            Item conn = arguments[CONNECTION].evaluateItem(context);
            if (!(conn instanceof ObjectValue && ((ObjectValue)conn).getObject() instanceof Connection) ) {
                dynamicError("Value of connection expression is not a JDBC Connection", SaxonErrorCode.SXSQ0001, context);
            }
            Connection connection = (Connection)((ObjectValue)conn).getObject();
            PreparedStatement ps = null;

View Full Code Here


        public Item evaluateItem(XPathContext context) throws XPathException {


            // Prepare the SQL statement (only do this once)


            Item conn = arguments[CONNECTION].evaluateItem(context);
            if (!(conn instanceof ObjectValue && ((ObjectValue)conn).getObject() instanceof Connection) ) {
                dynamicError("Value of connection expression is not a JDBC Connection", SaxonErrorCode.SXSQ0001, context);
            }
            Connection connection = (Connection)((ObjectValue)conn).getObject();
            PreparedStatement ps = null;

View Full Code Here


        public void process(XPathContext context) throws XPathException {
            // Prepare the SQL statement (only do this once)


            Controller controller = context.getController();
            Item conn = arguments[CONNECTION].evaluateItem(context);
            if (!(conn instanceof ObjectValue && ((ObjectValue)conn).getObject() instanceof Connection)) {
                XPathException de = new XPathException("Value of connection expression is not a JDBC Connection");
                de.setXPathContext(context);
                throw de;
            }

View Full Code Here

        public int computeCardinality() {
            return StaticProperty.ALLOWS_ZERO_OR_ONE;
        }


        public Item evaluateItem(XPathContext context) throws XPathException {
            Item conn = arguments[CONNECTION].evaluateItem(context);
            if (!(conn instanceof ObjectValue && ((ObjectValue)conn).getObject() instanceof Connection) ) {
                dynamicError("Value of connection expression is not a JDBC Connection", SaxonErrorCode.SXSQ0001, context);
            }
            Connection connection = (Connection)((ObjectValue)conn).getObject();
        try {

View Full Code Here

     */




    public XdmItem evaluateSingle() throws SaxonApiException {
        try {
            Item i = exp.evaluateSingle(dynamicContext);
            if (i == null) {
                return null;
            }
            return (XdmItem) XdmValue.wrap(i);
        } catch (XPathException e) {

View Full Code Here


        // Find the first node in ns2 (in document order)


        GlobalOrderComparer comparer = GlobalOrderComparer.getInstance();
        while (true) {
            Item item = ns2.next();
            if (item == null) {
                if (first == null) {
                    return ns1;
                }
                break;

View Full Code Here

    */


    public Item evaluateItem(XPathContext c) throws XPathException {
        AtomicValue sv;
        if (argument.length == 0) {
            final Item contextItem = c.getContextItem();
            if (contextItem == null) {
                dynamicError("The context item for string-length() is not set", "XPDY0002", c);
                return null;
            }
            sv = StringValue.makeStringValue(contextItem.getStringValueCS());
        } else {
            sv = (AtomicValue)argument[0].evaluateItem(c);
        }
        if (sv==null) {
            return Int64Value.ZERO;

View Full Code Here


    public static double max (SequenceIterator nsv) throws XPathException {
        double max = Double.NEGATIVE_INFINITY;
        try {
            while (true) {
                Item it = nsv.next();
                if (it == null) break;
                double x = Value.stringToNumber(it.getStringValueCS());
                if (Double.isNaN(x)) return x;
                if (x>max) max = x;
            }
            return max;
        } catch (NumberFormatException err) {

View Full Code Here

0 1 2 3 4 5 6 7 8

TOP

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

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.