Examples of net.sf.saxon.event.SequenceReceiver

net.sf.saxon.event.SequenceReceiver
SequenceReceiver: this extension of the Receiver interface is used when processing a sequence constructor. It differs from the Receiver in allowing items (atomic values or nodes) to be added to the sequence, not just tree-building events.


    public TailCall processLeavingTail(XPathContext context) throws XPathException {
        Controller controller = context.getController();
        XPathContext c2 = context.newMinorContext();
        c2.setOrigin(this);
        SequenceReceiver out = c2.getReceiver();
        TinyBuilder builder = new TinyBuilder();
        PipelineConfiguration pipe = controller.makePipelineConfiguration();
        pipe.setHostLanguage(getContainer().getHostLanguage());
        builder.setPipelineConfiguration(pipe);
        builder.open();

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        String prefix = evaluatePrefix(context);
        String uri = value.toString();
        checkPrefixAndUri(prefix, uri, context);


        int nscode = controller.getNamePool().allocateNamespaceCode(prefix, uri);
        SequenceReceiver out = context.getReceiver();
        out.namespace(nscode, ReceiverOptions.REJECT_DUPLICATES);
        //return null;
    }

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     */


    public void processValue(CharSequence value, XPathContext context) throws XPathException {
        //String comment = expandChildren(context).toString();
        String comment = checkContent(value.toString(), context);
        SequenceReceiver out = context.getReceiver();
        out.comment(comment, locationId, 0);
    }

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     * @param context The dynamic context, giving access to the current node,
     *                the current variables, etc.
     */


    public void process(XPathContext context, int locationId, int options) throws XPathException {
        SequenceReceiver out = context.getReceiver();
        if (isSingleton && isAtomic) {
            Item item = select.evaluateItem(context);
            if (item != null) {
                out.characters(item.getStringValueCS(), locationId, options);
            }
        } else {
            SequenceIterator iter = select.iterate(context);
            if (!isAtomic) {
                iter = Atomizer.getAtomizingIterator(iter);
            }
            boolean first = true;
            while (true) {
                Item item = iter.next();
                if (item==null) {
                    break;
                }
                if (!first) {
                    out.characters(" ", locationId, options);
                }
                first = false;
                out.characters(item.getStringValueCS(), locationId, options);
            }
        }
    }

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    public TailCall processLeavingTail(XPathContext context) throws XPathException {
        if (validation != Validation.PRESERVE || getSchemaType() != null) {
            Item item = evaluateItem(context);
            if (item != null) {
                SequenceReceiver out = context.getReceiver();
                out.append(item, locationId, NodeInfo.ALL_NAMESPACES);
            }
            return null;
        } else {
            SequenceReceiver out = context.getReceiver();
            out.startDocument(0);
            content.process(context);
            out.endDocument();
            return null;
        }
    }

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    public void processValue(CharSequence value, XPathContext context) throws XPathException {
        String expandedName = evaluateName(context);
        if (expandedName != null) {
            String data = checkContent(value.toString(), context);
            SequenceReceiver out = context.getReceiver();
            out.processingInstruction(expandedName, data, locationId, 0);
        }
    }

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    protected final void processValue(CharSequence value, XPathContext context) throws XPathException {
        int nameCode = evaluateNameCode(context);
//        if (nameCode == -1) {
//            return null;
//        }
        SequenceReceiver out = context.getReceiver();
        int opt = getOptions();
        int ann = getAnnotation();


      // we may need to change the namespace prefix if the one we chose is
      // already in use with a different namespace URI: this is done behind the scenes
      // by the ComplexContentOutputter


        //CharSequence value = expandChildren(context).toString();
        SimpleType schemaType = getSchemaType();
        int validationAction = getValidationAction();
        if (schemaType != null) {
            // test whether the value actually conforms to the given type
            try {
                ValidationFailure err = schemaType.validateContent(
                        value, DummyNamespaceResolver.getInstance(), context.getConfiguration().getNameChecker());
                if (err != null) {
                    ValidationException ve = new ValidationException(
                            "Attribute value " + Err.wrap(value, Err.VALUE) +
                                               " does not match the required type " +
                                               schemaType.getDescription() + ". " +
                                               err.getMessage());
                    ve.setErrorCode("XTTE1540");
                    throw ve;
                }
            } catch (UnresolvedReferenceException ure) {
                throw new ValidationException(ure);
            }
        } else if (validationAction== Validation.STRICT ||
                validationAction==Validation.LAX) {
            try {
                ann = context.getConfiguration().validateAttribute(nameCode, value, validationAction);
            } catch (ValidationException e) {
                XPathException err = XPathException.makeXPathException(e);
                err.maybeSetErrorCode((validationAction==Validation.STRICT ? "XTTE1510" : "XTTE1515"));
                err.setXPathContext(context);
                err.maybeSetLocation(this);
                err.setIsTypeError(true);
                throw err;
            }
        }
        if ((nameCode & NamePool.FP_MASK) == StandardNames.XML_ID) {
            value = Whitespace.collapseWhitespace(value);
        }
        try {
            out.attribute(nameCode, ann, value, locationId, opt);
        } catch (XPathException err) {
            throw dynamicError(this, err, context);
        }


        //return null;

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            de.setXPathContext(context);
            throw de;
        }
        if (reservoir != null) {
            SequenceIterator iter = iterate();
            SequenceReceiver out = context.getReceiver();
            while (true) {
                Item it = iter.next();
                if (it==null) break;
                out.append(it, 0, NodeInfo.ALL_NAMESPACES);
            }
        } else {
            state = BUSY;
            Controller controller = context.getController();
            XPathContext c2 = savedXPathContext.newMinorContext();

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        if (next instanceof CardinalityChecker) {
            card = ((CardinalityChecker)next).getRequiredCardinality();
            next = ((CardinalityChecker)next).getBaseExpression();
        }
        if ((next.getImplementationMethod() & PROCESS_METHOD) != 0 && !(requiredItemType instanceof DocumentNodeTest)) {
            SequenceReceiver out = context.getReceiver();
            TypeCheckingFilter filter = new TypeCheckingFilter();
            filter.setUnderlyingReceiver(out);
            filter.setPipelineConfiguration(out.getPipelineConfiguration());
            filter.setRequiredType(requiredItemType, card, role, this);
            context.setReceiver(filter);
            next.process(context);
            filter.close();
            context.setReceiver(out);

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            }


        } else if ((m & ITERATE_METHOD) != 0) {


            SequenceIterator iter = iterate(context);
            SequenceReceiver out = context.getReceiver();
            try {
                while (true) {
                    Item it = iter.next();
                    if (it == null) {
                        break;
                    }
                    out.append(it, locationId, NodeInfo.ALL_NAMESPACES);
                }
            } catch (XPathException e) {
                e.maybeSetLocation(this);
                e.maybeSetContext(context);
                throw e;

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net.sf.saxon.expr.CardinalityChecker

net.sf.saxon.expr.Expression

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net.sf.saxon.expr.LetExpression

net.sf.saxon.expr.Literal

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