Examples of NodePointer

org.apache.commons.jxpath.ri.model.NodePointer
Common superclass for Pointers of all kinds. A NodePointer maps to a deterministic XPath that represents the location of a node in an object graph. This XPath uses only simple axes: child, namespace and attribute and only simple, context-independent predicates. @author Dmitri Plotnikov @version $Revision: 1.17 $ $Date: 2003/03/11 00:59:23 $

Examples of org.apache.commons.jxpath.ri.model.NodePointer

        HashSet set = new HashSet();
        for (int i = 0; i < contexts.length; i++) {
            EvalContext ctx = (EvalContext) contexts[i];
            while (ctx.nextSet()) {
                while (ctx.nextNode()) {
                    NodePointer ptr = ctx.getCurrentNodePointer();
                    if (!set.contains(ptr)) {
                        ptr = (NodePointer) ptr.clone();
                        list.add(ptr);
                        set.add(ptr);
                    }
                }
            }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

        if (steps.length == 0) {
            return context.getSingleNodePointer();
        }


        if (isSimplePath()) {
            NodePointer ptr = (NodePointer) context.getSingleNodePointer();
            return SimplePathInterpreter.interpretSimpleLocationPath(
                context,
                ptr,
                steps);
        }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer


    public boolean nextNode() {
        if (!setStarted) {
            setStarted = true;
            currentRootLocation = parentContext.getCurrentNodePointer();
            NodePointer parent =
                getMaterialPointer(currentRootLocation.getParent());
            if (parent != null) {
                // TBD: check type
                stack.push(
                    parent.childIterator(null, reverse, currentRootLocation));
            }
        }


        while (true) {
            if (stack.isEmpty()) {
                currentRootLocation =
                    getMaterialPointer(currentRootLocation.getParent());


                if (currentRootLocation == null
                    || currentRootLocation.isRoot()) {
                    break;
                }


                NodePointer parent =
                    getMaterialPointer(currentRootLocation.getParent());
                if (parent != null) {
                    stack.push(
                        parent.childIterator(
                            null,
                            reverse,
                            currentRootLocation));
                }
            }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

    }


    protected Object functionLang(EvalContext context) {
        assertArgCount(1);
        String lang = InfoSetUtil.stringValue(getArg1().computeValue(context));
        NodePointer pointer = (NodePointer) context.getSingleNodePointer();
        if (pointer == null) {
            return Boolean.FALSE;
        }
        return pointer.isLanguage(lang) ? Boolean.TRUE : Boolean.FALSE;
    }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer


    protected Object functionID(EvalContext context) {
        assertArgCount(1);
        String id = InfoSetUtil.stringValue(getArg1().computeValue(context));
        JXPathContext jxpathContext = context.getJXPathContext();
        NodePointer pointer = (NodePointer) jxpathContext.getContextPointer();
        return pointer.getPointerByID(jxpathContext, id);
    }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

    protected Object functionKey(EvalContext context) {
        assertArgCount(2);
        String key = InfoSetUtil.stringValue(getArg1().computeValue(context));
        String value = InfoSetUtil.stringValue(getArg2().computeValue(context));
        JXPathContext jxpathContext = context.getJXPathContext();
        NodePointer pointer = (NodePointer) jxpathContext.getContextPointer();
        return pointer.getPointerByKey(jxpathContext, key, value);
    }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

        assertArgCount(1);
        Object set = getArg1().compute(context);
        if (set instanceof EvalContext) {
            EvalContext ctx = (EvalContext) set;
            if (ctx.hasNext()) {
                NodePointer ptr = (NodePointer) ctx.next();
                String str = ptr.getNamespaceURI();
                return str == null ? "" : str;
            }
        }
        return "";
    }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

        assertArgCount(1);
        Object set = getArg1().compute(context);
        if (set instanceof EvalContext) {
            EvalContext ctx = (EvalContext) set;
            if (ctx.hasNext()) {
                NodePointer ptr = (NodePointer) ctx.next();
                return ptr.getName().getName();
            }
        }
        return "";
    }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

        assertArgCount(1);
        Object set = getArg1().compute(context);
        if (set instanceof EvalContext) {
            EvalContext ctx = (EvalContext) set;
            if (ctx.hasNext()) {
                NodePointer ptr = (NodePointer) ctx.next();
                return ptr.getExpandedName().toString();
            }
        }
        return "";
    }

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Examples of org.apache.commons.jxpath.ri.model.NodePointer

        }
        else if (v instanceof EvalContext) {
            double sum = 0.0;
            EvalContext ctx = (EvalContext) v;
            while (ctx.hasNext()) {
                NodePointer ptr = (NodePointer) ctx.next();
                sum += InfoSetUtil.doubleValue(ptr);
            }
            return new Double(sum);
        }
        throw new JXPathException(

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