Examples of JXPathContext

org.apache.commons.jxpath.JXPathContext
3schools.com/xpath">XPath Tutorial by W3Schools
. Also see XML Path Language (XPath) Version 1.0

You will also find more information and examples in JXPath User's Guide @author Dmitri Plotnikov @version $Revision: 1.16 $ $Date: 2003/03/11 00:59:12 $
our.apache.commons.jxpath.JXPathContext

Examples of org.apache.commons.jxpath.JXPathContext

        assertXPathValueIterator(
            context,
            "$testnull/nothing[1]",
            Collections.EMPTY_LIST);


        JXPathContext ctx = JXPathContext.newContext(new TestNull());
        assertXPathValue(ctx, "nothing", null);


        assertXPathValue(ctx, "child/nothing", null);


        assertXPathValue(ctx, "array[2]", null);

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Examples of org.apache.commons.jxpath.JXPathContext

     */
    public void testIterateArray() {
        Map map = new HashMap();
        map.put("foo", new String[] { "a", "b", "c" });


        JXPathContext context = JXPathContext.newContext(map);


        assertXPathValueIterator(context, "foo", list("a", "b", "c"));
    }

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Examples of org.apache.commons.jxpath.JXPathContext


    public void testIteratePointersArray() {
        Map map = new HashMap();
        map.put("foo", new String[] { "a", "b", "c" });


        JXPathContext context = JXPathContext.newContext(map);


        Iterator it = context.iteratePointers("foo");
        List actual = new ArrayList();
        while (it.hasNext()) {
            Pointer ptr = (Pointer) it.next();
            actual.add(context.getValue(ptr.asPath()));
        }
        assertEquals(
            "Iterating pointers <" + "foo" + ">",
            list("a", "b", "c"),
            actual);

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Examples of org.apache.commons.jxpath.JXPathContext


    public void testIteratePointersArrayElementWithVariable() {
        Map map = new HashMap();
        map.put("foo", new String[] { "a", "b", "c" });


        JXPathContext context = JXPathContext.newContext(map);
        context.getVariables().declareVariable("x", new Integer(2));
        Iterator it = context.iteratePointers("foo[$x]");
        List actual = new ArrayList();
        while (it.hasNext()) {
            Pointer ptr = (Pointer) it.next();
            actual.add(context.getValue(ptr.asPath()));
        }
        assertEquals("Iterating pointers <" + "foo" + ">", list("b"), actual);
    }

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Examples of org.apache.commons.jxpath.JXPathContext

        Vector vec = new Vector();
        vec.add(new HashMap());
        vec.add(new HashMap());


        map.put("vec", vec);
        JXPathContext context = JXPathContext.newContext(map);
        assertXPathPointerIterator(
            context,
            "/vec",
            list("/.[@name='vec'][1]", "/.[@name='vec'][2]"));
    }

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Examples of org.apache.commons.jxpath.JXPathContext

            new RootContext(this, getAbsoluteRootPointer()));
    }


    public NodePointer getVariablePointer(QName name) {
        String varName = name.toString();
        JXPathContext varCtx = this;
        Variables vars = null;
        while (varCtx != null) {
            vars = varCtx.getVariables();
            if (vars.isDeclaredVariable(varName)) {
                break;
            }
            varCtx = varCtx.getParentContext();
            vars = null;
        }
        if (vars != null) {
            return new VariablePointer(vars, name);
        }

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Examples of org.apache.commons.jxpath.JXPathContext

    }


    public Function getFunction(QName functionName, Object[] parameters) {
        String namespace = functionName.getPrefix();
        String name = functionName.getName();
        JXPathContext funcCtx = this;
        Function func = null;
        Functions funcs;
        while (funcCtx != null) {
            funcs = funcCtx.getFunctions();
            if (funcs != null) {
                func = funcs.getFunction(namespace, name, parameters);
                if (func != null) {
                    return func;
                }


                funcCtx = funcCtx.getParentContext();
            }
            else {
                break;
            }
        }

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Examples of org.apache.commons.jxpath.JXPathContext

        }
    }


    protected void findVariables(JXPathContext context) {
        valuePointer = null;
        JXPathContext varCtx = context;
        while (varCtx != null) {
            variables = varCtx.getVariables();
            if (variables.isDeclaredVariable(name.toString())) {
                actual = true;
                break;
            }
            varCtx = varCtx.getParentContext();
            variables = null;
        }
    }

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Examples of org.apache.commons.jxpath.JXPathContext

    }


    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.JXPathContext


    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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