[From http://jakarta.apache.org/commons/jxpath/index.html]:
The org.apache.commons.jxpath package defines a simple interpreter of an expression language called
XPath.
JXPath applies
XPath expressions to graphs of objects of all kinds:
JavaBeans, Maps, Servlet contexts, DOM etc, including mixtures thereof.
Consider this example:
Address address = (Address)JXPathContext.newContext(vendor).
getValue("locations[address/zipCode='90210']/address");
This
XPath expression is equvalent to the following Java code:
Address address = null;
Collection locations = vendor.getLocations();
Iterator it = locations.iterator();
while (it.hasNext()){
Location location = (Location)it.next();
String zipCode = location.getAddress().getZipCode();
if (zipCode.equals("90210")){
address = location.getAddress();
break;
}
}
XPath was standardized by W3C and is used in both XSLT and XPointer.