Examples of net.sf.saxon.om.SequenceIterator

net.sf.saxon.om.SequenceIterator
A SequenceIterator is used to iterate over any XPath 2 sequence (of values or nodes). To get the next item in a sequence, call next(); if this returns null, you've reached the end of the sequence.
A SequenceIterator keeps track of the current Item and the current position. The objects returned by the SequenceIterator will always be either nodes (class NodeInfo) or singleton values (class AtomicValue): these are represented collectively by the interface Item.
This interface forms part of the public Saxon API. The JavaDoc "since" flag is used from release 8.4 onwards to indicate methods that are considered to be a stable part of the API. Methods without a "since" flag should not be regarded as a stable part of the API.
Note that the stability of this interface applies to classes that use the interface, not to classes that implement it. The interface may be extended in future to add new methods. @author Michael H. Kay @since 8.4

        flushCurrentLiteralList(currentLiteralList, targetList);
    }


    private void flushCurrentLiteralList(List<Item> currentLiteralList, List<Expression> list) throws XPathException {
        if (currentLiteralList != null) {
            SequenceIterator iter = new net.sf.saxon.om.ListIterator(currentLiteralList);
            list.add(Literal.makeLiteral((Value)SequenceExtent.makeSequenceExtent(iter)));
        }
    }

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    public String evaluateAsString(Exchange exchange) throws Exception {
        LOG.debug("evaluateAsString: {} for exchange: {}", expression, exchange);
        initialize(exchange);


        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }


        String answer = buffer.toString();
        buffer.close();

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    public String evaluateAsString(Exchange exchange) throws Exception {
        initialize();


        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }
        return buffer.toString();
    }

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    public String evaluateAsString(Exchange exchange) throws Exception {
        initialize(exchange);


        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }
        return buffer.toString();
    }

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        // Setting properties
        for (Map.Entry<String, Object> entry : properties.entrySet()) {
            dynamicContext.setParameter(entry.getKey(), transformProperty(entry.getValue(), config));
        }


        SequenceIterator iterator = null;
        Configuration oldConfigValue = SaxonDataBindingHelper.CURR_EXECUTING_CONFIG;
        SaxonDataBindingHelper.CURR_EXECUTING_CONFIG = config;
        try {
            iterator = exp.iterator(dynamicContext);
        } finally {
            SaxonDataBindingHelper.CURR_EXECUTING_CONFIG = oldConfigValue;
        }
        Item item = iterator.next();
        if (item == null) {
            return null;
        }
        if (item instanceof NodeInfo) {
            return item;

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    public String evaluateAsString(Exchange exchange) throws Exception {
        initialize(exchange);


        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }


        String answer = buffer.toString();
        buffer.close();

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    public String evaluateAsString(Exchange exchange) throws Exception {
        initialize(exchange);


        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }


        String answer = buffer.toString();
        buffer.close();

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        return bytes;
    }


    public String evaluateAsString(Exchange exchange) throws Exception {
        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }
        return buffer.toString();
    }

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        // Setting properties
        for (Map.Entry<String, Object> entry : properties.entrySet()) {
            dynamicContext.setParameter(entry.getKey(), transformProperty(entry.getValue(), config));
        }


        SequenceIterator iterator = null;
        Configuration oldConfigValue = SaxonDataBindingHelper.CURR_EXECUTING_CONFIG;
        SaxonDataBindingHelper.CURR_EXECUTING_CONFIG = config;
        try {
            iterator = exp.iterator(dynamicContext);
        } finally {
            SaxonDataBindingHelper.CURR_EXECUTING_CONFIG = oldConfigValue;
        }
        Item item = iterator.next();
        if (item == null) {
            return null;
        }
        if (item instanceof NodeInfo) {
            return item;

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    public String evaluateAsString(Exchange exchange) throws Exception {
        initialize(exchange);


        StringWriter buffer = new StringWriter();
        SequenceIterator iter = getExpression().iterator(createDynamicContext(exchange));
        for (Item item = iter.next(); item != null; item = iter.next()) {
            buffer.append(item.getStringValueCS());
        }
        return buffer.toString();
    }

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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

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