XPath over XML Schema: Examples

Sample XSD used in examples
Boilerplate
Examples: 1, 2, 3, 4, 5, 6 (more examples in the download).

/**
 * In this example we will evaluate an xpath in the context 
 * of results of another xpath. 
 * The first XPath will get all top-level elements,
 * the second one will get all children of the top-level elements.
 */
public static List<PathElement> example5(SchemaData schData) {
    
    // analyse the first XPath
    XPath xpath1 = new XPath("/ex:*");
    List<PathElement> matched1 = null;
    try {
        matched1 = xpath1.analyse(schData, null);
    } catch (XPathException e) {
        System.err.println(e.getMessage());
    }
    System.out.println("- First /ex:* XPath");
    printMatchedNodes(matched1);
    
    // analyse the second XPath
    XPath xpath2 = new XPath("/ex:*");
    List<PathElement> matched2 = null;
    try {
        matched2 = xpath2.analyse(schData, xpath1);
    } catch (XPathException e) {
        System.err.println(e.getMessage());
    }
    
    // print final matched nodes
    System.out.println("\n- Second /ex:* XPath, effectively /ex:*/ex:*");
    printMatchedNodes(matched2);
    
    return matched2;
}
    

- First /ex:* XPath
Matched nodes:
/Address[1,1](10:3)
/Delivery[1,1](23:3)
/Addresses[1,1](34:3)
/Deliveries[1,1](42:3)
/Collection[1,1](50:3)
/ID[1,1](58:3)

- Second /ex:* XPath, effectively /ex:*/ex:*
Matched nodes:
/Address[1,1](10:3)/Line1[1,1](14:7)
/Address[1,1](10:3)/Line2[1,1](15:7)
/Address[1,1](10:3)/City[1,1](16:7)
/Address[1,1](10:3)/State[1,1](17:7)
/Address[1,1](10:3)/Zip[1,1](18:7)
/Address[1,1](10:3)/ZipExt[1,1](19:7)
/Delivery[1,1](23:3)/Date[1,1](27:7)
/Delivery[1,1](23:3)/Time[1,1](28:7)
/Delivery[1,1](23:3)/Address[1,1](29:7)
/Delivery[1,1](23:3)/DeliveryID[1,1](30:7)
/Addresses[1,1](34:3)/Address[0,inf](38:7)
/Deliveries[1,1](42:3)/Delivery[0,inf](46:7)
/Collection[1,1](50:3)/Addresses[1,1](53:7)
/Collection[1,1](50:3)/Deliveries[1,1](54:7)