Example

Given a simple xml :

            <doc  xmlns:xlink="http://www.w3.org/1999/xlink">
                <head id="h1">
                    <title>Virtual Library</title>
                </head>
                <body xml:base="http://example.org/today/">
                <paragraph>See <link xlink:type="simple" xlink:href="new.xml">what's
                    new</link>!</paragraph>
                <paragraph>Check out the hot picks of the day!</paragraph>
                <olist xml:base="/hotpicks/">
                    <item id="it1">
                        <link xlink:type="simple" xlink:href="pick1.xml">Hot Pick #1</link>
                    </item>
                    <item>
                        <link xlink:type="simple" xlink:href="pick2.xml">Hot Pick #2</link>
                    </item>
                    <item>
                        <link xlink:type="simple" xlink:href="pick3.xml">Hot Pick #3</link>
                    </item>
                </olist>
                </body>
            </doc>

Instanciate a XPointerEngine:

                    final XPointerEngine xPointerEngine = new XPointerEngine();

Set the base fixup option to true

                    xPointerEngine.setBaseURI("test.xml");

Set the error handler and execute

                    final PrintableXPointerErrorHandler printableXPointerErrorHandler = new PrintableXPointerErrorHandler();
                    xPointerEngine.setXPointerErrorHandler(printableXPointerErrorHandler);
                    xPointerEngine.execute(pointer, new SAXSource(new InputSource(new StringReader(source))));

Expressions matching nodes:

Pointer content	Result	Error
h1	<head xml:base="test.xml" id="h1"> <title xmlns:xlink="http://www.w3.org/1999/xlink">Virtual Library</title> </head>
it1	<item xml:base="http://example.org/hotpicks/" id="it1"> <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="pick1.xml">Hot Pick #1</link> </item>

With base fixup false:

                xPointerEngine.setBaseURI(null);

Pointer content	Result	Error
it1	<item id="it1"> <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="pick1.xml">Hot Pick #1</link> </item>

Base fixup option

Example