Examples of net.sf.saxon.pattern.PatternFinder

net.sf.saxon.pattern.PatternFinder
This interface enables a client to find all nodes in a document that match a particular pattern. In fact, it allows any subset of nodes in a document to be located. It is used specifically by the internal implementation of keys. In XSLT, the criterion for including nodes in a key is that they match an XSLT pattern. Internally, however, keys are used for a wider range of purposes, and the nodes indexed by the key are defined by a PatternFinder

     * @param config The configuration. This is needed because the patterns that are
     * generated need access to schema information.
     */


    private void registerIdrefKey(Configuration config) {
        PatternFinder idref = IdrefTest.getInstance();
        StringFn sf = (StringFn)SystemFunction.makeSystemFunction(
                "string", new Expression[]{new ContextItemExpression()});
        StringLiteral regex = new StringLiteral("\\s+");
        Tokenize use = (Tokenize)SystemFunction.makeSystemFunction("tokenize", new Expression[]{sf, regex});
        KeyDefinition key = new KeyDefinition(idref, use, null, null);

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                                    BuiltInAtomicType soughtItemType,
                                    Set<BuiltInAtomicType> foundItemTypes,
                                    XPathContext context,
                                    boolean isFirst) throws XPathException {
        //System.err.println("build index for doc " + doc.getDocumentNumber());
        PatternFinder match = keydef.getMatch();


        //NodeInfo curr;
        XPathContextMajor xc = context.newContext();
        xc.setOrigin(keydef);


        // The use expression (or sequence constructor) may contain local variables.
        SlotManager map = keydef.getStackFrameMap();
        if (map != null) {
            xc.openStackFrame(map);
        }


        SequenceIterator iter = match.selectNodes(doc, xc);
        while (true) {
            Item item = iter.next();
            if (item == null) {
                break;
            }

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     * @param config The configuration. This is needed because the patterns that are
     * generated need access to schema information.
     */


    private void registerIdrefKey(Configuration config) {
        PatternFinder idref = IdrefTest.getInstance();
        Expression eval = new Atomizer(new ContextItemExpression(), config);


        StringLiteral regex = new StringLiteral("\\s");
        Tokenize use = (Tokenize)SystemFunction.makeSystemFunction("tokenize", new Expression[]{eval, regex});
        KeyDefinition key = new KeyDefinition(idref, use, null, null);

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                                    BuiltInAtomicType soughtItemType,
                                    Set foundItemTypes,
                                    XPathContext context,
                                    boolean isFirst) throws XPathException {
        //System.err.println("build index for doc " + doc.getDocumentNumber());
        PatternFinder match = keydef.getMatch();


        //NodeInfo curr;
        XPathContextMajor xc = context.newContext();
        xc.setOrigin(keydef);


        // The use expression (or sequence constructor) may contain local variables.
        SlotManager map = keydef.getStackFrameMap();
        if (map != null) {
            xc.openStackFrame(map);
        }


        SequenceIterator iter = match.selectNodes(doc, xc);
        while (true) {
            Item item = iter.next();
            if (item == null) {
                break;
            }

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Related Classes of net.sf.saxon.pattern.PatternFinder

net.sf.saxon.trans.KeyManager

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