X-Z

XML (eXtensible Markup Language), 453

basic concepts, refresher example, 455

deployment descriptors, 361

document, 456

DTD (Document Type Definition), 456

logging service example, 438

messaging, overview, 512

namespaces, 459

URI & URL, 459

schema, 458

standardization, 595

message APIs, 621

messaging frameworks, 595

service discovery & description, 615

web.xml file, 438

XHTML (eXtensible HTML), 460

XML messaging, 453

frameworks, standardizing, 595

BizTalk, 602

ebXML, 605

SOAP, 596

XMSG, 613

XP, W3C, 614

JMS-XML integration, 487

JMS body & XML documents, 490

JMS headers & properties, 489

coupling to JMS, 489

JMSType header field, 490

message selection uses, 489

robust messaging systems, requirements, 488

application- vs. MOM-based robust messaging, 488

message APIs, standardizing, 621

CMI, 622

JAXM, 621

RPCs, Java APIs for XML-based, 622

message as API, problems, 461

bandwidth & resource conservation, 463

parsing & validation, 462

structure, 461

typing & encoding, 462

overview, 512

parsing & transformation, 471

DOM tree-based parsing, 473

Java-XML data binding, 485

JAXP, 472

SAX event-based parsing, 479

reducing coupling through APIs, 454

API system coupling, overview, 454

late binding of messages, 454

networking benefits, 455

router example, 492

security, service providers, 491

entire document encryption, 491

MOM encryption, 492

segmented encryption, 492

validation, 492

service discovery & description, standardizing, 615

JAXR, 621

UDDI, 615

WSDL, 620

XML solution, advantages, 463

DTD validation model, 465

extensibility, 464

flexibility, 464

human readable & machine understandable, 467

language & platform independence, 463

rich structures, 465

schema distribution model, 466

standards-based, 464

Unicode support, 465

XML solution, limitations, 467

message overhead, wireless bandwidth, 467

non-XML data packaging, 468

Base64 solution, 469

MIME solution, 470

parser size & complexity, 467

XML messaging router example, 492

compiling & running, 509

Consumer class, message consumer, 507

DestinationBoundMsg container class for returned messages, 498

diagram, functionality, 492

FileToString utility class, 506

input message, 493

JNDIHelper class, accessing queue connection factory through JNDI, 508

Listener class, message listener, 503

MessageRouter class, JMS dispatcher, 501

msgTransform.xsl XSLT stylesheet, 500

NodeListlmpl class, implementing DOM NodeList

interface, 500

output message, 494

Producer class, message producer, 505

XmlMessageHandler class, 494

analyzeMsg() method, 496

constructor method, 496

imports, 494

XPath queries, using, 499

XMLUtilities class, returning nodes list matching query, 499

XMSG, 613

XP (XML Protocol), W3C, 614

XPath, 499

XML messaging router example, 499

XSLT (eXtensible Stylesheet Language Transformations)

XML messaging router example, 500