Examples of net.sf.saxon.expr.Expression

net.sf.saxon.expr.Expression
Interface supported by an XPath expression. This includes both compile-time and run-time methods.
Two expressions are considered equal if they return the same result when evaluated in the same context.


        IntIterator it = serializationAttributes.keyIterator();
        while (it.hasNext()) {
            int fp = it.next();
            String displayName = getNamePool().getDisplayName(fp);
            final Expression exp1 = serializationAttributes.get(fp);
            final Expression exp2 = typeCheck(displayName, exp1);
            if (exp1 != exp2) {
                serializationAttributes.put(fp, exp2);
            }
        }

View Full Code Here

        IntHashSet fixed = new IntHashSet(10);
        boolean needsNamespaceContext = (formatExpression != null);
        NamespaceResolver namespaceResolver = getStaticContext().getNamespaceResolver();
        for (IntIterator it=serializationAttributes.keyIterator(); it.hasNext();) {
            int fp = it.next();
            Expression exp = serializationAttributes.get(fp);
            if (exp instanceof StringLiteral) {
                String s = ((StringLiteral)exp).getStringValue();
                String lname = getNamePool().getLocalName(fp);
                String uri = getNamePool().getURI(fp);
                try {


                    ResultDocument.setSerializationProperty(localProps, uri, lname, s,
                            namespaceResolver, false, exec.getConfiguration());
                    fixed.add(fp);
                } catch (XPathException e) {
                    if (NamespaceConstant.SAXON.equals(e.getErrorCodeNamespace())) {
                        compileWarning(e.getMessage(), e.getErrorCodeQName());
                    } else {
                        compileError(e);
                    }
                }
            } else {
                String lname = getNamePool().getLocalName(fp);
                if (lname.equals("method") || lname.equals("cdata-section-elements") ||
                        lname.equals("suppress-indentation")) {
                    needsNamespaceContext = true;
                }
            }
        }
        for (IntIterator it=fixed.iterator(); it.hasNext();) {
            serializationAttributes.remove(it.next());
        }


        ResultDocument inst = new ResultDocument(globalProps,
                                              localProps,
                                              href,
                                              formatExpression,
                                              getBaseURI(),
                                              validationAction,
                                              schemaType,
                                              serializationAttributes,
                                              (needsNamespaceContext ? namespaceResolver : null));


        Expression b = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);
        if (b == null) {
            b = new Literal(EmptySequence.getInstance());
        }
        inst.setContentExpression(b);
        return inst;

View Full Code Here

    public Expression compile(Executable exec) throws XPathException {


        DocumentInstr inst = new DocumentInstr(false, null, getBaseURI());
        inst.setValidationMode(validationAction);
        inst.setSchemaType(schemaType);
        Expression b = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);
        if (b == null) {
            b = Literal.makeEmptySequence();
        }
        inst.setContentExpression(b);
        return inst;

View Full Code Here

        }
    }


    public Expression compile(Executable exec) throws XPathException {
        SortKeyDefinition[] sortKeys = makeSortKeys();
        Expression sortedSequence = select;
        if (sortKeys != null) {
            sortedSequence = new SortExpression(select, sortKeys);
        }


        Expression block = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);
        if (block == null) {
            // body of for-each is empty: it's a no-op.
            return Literal.makeEmptySequence();
        }
        try {

View Full Code Here

     * @return a Procedure object representing the compiled attribute set
     * @throws XPathException if a failure is detected
     */
    public Expression compile(Executable exec) throws XPathException {
        if (referenceCount > 0 ) {
            Expression body = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);
            if (body == null) {
                body = Literal.makeEmptySequence();
            }


            try {


                ExpressionVisitor visitor = makeExpressionVisitor();
                body = visitor.simplify(body);
                if (getConfiguration().isCompileWithTracing()) {
                    TraceWrapper trace = new TraceInstruction(body, this);
                    trace.setLocationId(allocateLocationId(getSystemId(), getLineNumber()));
                    trace.setContainer(procedure);
                    body = trace;
                }


                procedure.setUseAttributeSets(useAttributeSets);
                procedure.setName(getObjectName());
                procedure.setBody(body);
                procedure.setSystemId(getSystemId());
                procedure.setLineNumber(getLineNumber());
                procedure.setExecutable(exec);


                Expression exp2 = body.optimize(visitor, AnyItemType.getInstance());
                if (body != exp2) {
                    procedure.setBody(exp2);
                    body = exp2;
                }

View Full Code Here

        return new SaxonXQExpressionContext(expression);
    }


    public XQSequenceType getStaticResultType() throws XQException {
        checkNotClosed();
        Expression exp = expression.getExpression();    // unwrap two layers!
        ItemType itemType = exp.getItemType(connection.getConfiguration().getTypeHierarchy());
        int cardinality = exp.getCardinality();
        SequenceType staticType = SequenceType.makeSequenceType(itemType, cardinality);
        return new SaxonXQSequenceType(staticType, connection.getConfiguration());
    }

View Full Code Here

                    } else {
                        compileError("Unknown XSL attribute " + namePool.getDisplayName(anameCode), "XTSE0805");
                    }
                } else {
                    attributeNames[numberOfAttributes] = anameCode;
                    Expression exp = makeAttributeValueTemplate(attributeList.getValue(i));
                    attributeValues[numberOfAttributes] = exp;
                    numberOfAttributes++;
                }
            }

View Full Code Here

                        inheritNamespaces,
                        schemaType,
                        validation);


        inst.setBaseURI(getBaseURI());
        Expression content = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);


        if (numberOfAttributes > 0) {
            for (int i=attributeNames.length - 1; i>=0; i--) {
                FixedAttribute att = new FixedAttribute(
                        attributeNames[i],
                        Validation.STRIP,
                        null,
                        StandardNames.XS_UNTYPED_ATOMIC);
                try {
                    att.setSelect(attributeValues[i], exec.getConfiguration());
                } catch (XPathException err) {
                    compileError(err);
                }
                att.setLocationId(allocateLocationId(getSystemId(), getLineNumber()));
                Expression exp = att;
                if (getConfiguration().isCompileWithTracing()) {
                    TraceExpression trace = new TraceExpression(exp);
                    trace.setLineNumber(getLineNumber());
                    trace.setColumnNumber(-1);
                    trace.setSystemId(getSystemId());

View Full Code Here

            } catch (XPathException err) {
                // fall through to non-optimizing case
            }
        }


        Expression action = compileSequenceConstructor(exec, iterateAxis(Axis.CHILD), true);
        if (action == null) {
            return null;
        }
        Expression[] conditions = {test};
        Expression[] actions = {action};

View Full Code Here

            for (int i = 0; i < topLevel.size(); i++) {
                NodeInfo node = (NodeInfo) topLevel.get(i);
                if (node instanceof StyleElement) {
                    StyleElement snode = (StyleElement) node;
                    //int module = putModuleNumber(snode.getSystemId());
                    Expression inst = snode.compile(exec);
                    if (inst != null) {
                        inst.setLocationId(allocateLocationId(getSystemId(), snode.getLineNumber()));
                    }
                }
            }


            // Call optimize method for each top-level object in the stylesheet

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of net.sf.saxon.expr.Expression

net.sf.saxon.event.SequenceReceiver

net.sf.saxon.evpull.EventIteratorOverSequence

net.sf.saxon.evpull.SingletonEventIterator

net.sf.saxon.functions.Document

net.sf.saxon.functions.FunctionLibraryList

net.sf.saxon.functions.Idref

net.sf.saxon.functions.Matches

net.sf.saxon.functions.Remove

net.sf.saxon.functions.Replace

net.sf.saxon.functions.StringJoin

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.