Immanix sample

data.xml

    <root>
        <entry>
            <value>[...]</value>
        </entry>
        <entry>
            <value>[...]</value>
            <extra>[...]</extra>
        </entry>
        <entry>
            <value>[...]</value>
        </entry>
        :
        :
    </root>

Immanix.java

    StaxMatcher<String> value = start("value").thenr(chars()).thenl(end("value"));
    
    StaxMatcher<String> extra = start("extra").thenr(chars()).thenl(end("extra"));
    
    StaxMatcher<Tuple2<String, String>>  entry =  start("entry").thenr(value).then(extra).thenl(end("entry"));
    
    Mapper<Void> execEntry = new Mapper<Tuple2<String, String>, T>(entry) {
        public Void process(Tuple2<String, String> data) {
            // insert data into the database
            return null;
        }
    }
    
    StaxMatcher<Void> entries = execEntry.zeroOrMore();
    
    StaxMatcher<Void> almighty = startDoc().then(start("root")).thenr(entries).thenl(end("root")).thenl(endDoc());
    
    XMLInputFactory inputFactory = createInputFactory();
    XMLEventReader evr = inputFactory.createXMLEventReader(new FileInputStream("/some/file.xml"));
    
    MatcherResult<Void> result = almighty.match(evr);
    
    if(result.isFailure()){
        //handle errors
    } else {
        //everything went well
    }