Professional Java Server Prog Ramming J2ee Edition

by Jason Diamond Et Al

• ISBN13: 9781861004659
• ISBN10: 1861004656
• Edition: 2nd
• Format: Trade Paper
• Copyright: 2000-09-01
• Publisher: Springer-Verlag New York Inc
• More Book Details
• Purchase Benefits

Summary

A guide to developing server-side Java applications based on the J2EE specification, for developers who would like to use a Java platform. Shows how to do everything from debugging applications to using key technologies such as RMI and JDBC.

Table of Contents

Introduction	1	(6)
Java and the J2EE Platform	7	(28)
The Enterprise Today	8	(6)
System Architecture	9	(1)
2-Tier Architecture	9	(1)
3-Tier Architecture	10	(1)
n-Tier Architecture	10	(1)
Enterprise Architecture	11	(1)
Is Java the Answer?	12	(1)
Platform Independence	13	(1)
Reusability	13	(1)
Modularity	13	(1)
The J2EE Platform	14	(3)
The J2EE Runtime	14	(1)
The J2EE APIs	15	(2)
J2EE Architecture - Containers	17	(6)
Container Architecture	18	(1)
Component Contracts	19	(1)
Container Service APIs	20	(1)
Declarative Services	21	(1)
Other Container Services	22	(1)
J2EE Technologies	23	(6)
Component Technologies	23	(1)
Web Components	24	(1)
Enterprise JavaBean Components	25	(1)
Service Technologies	25	(1)
JDBC	25	(1)
Java Transaction API and Service	25	(1)
JNDI	26	(1)
Communication Technologies	26	(1)
Internet Protocols	26	(1)
Remote Object Protocols	27	(1)
JMS	27	(1)
JavaMail	27	(1)
XML	27	(2)
Developing J2EE Applications	29	(3)
J2EE Application Development and Deployment Roles	29	(1)
Application Component Development	30	(1)
Composition of Application Components into Modules	30	(1)
Composition of Modules into Applications	30	(1)
Application Deployment	31	(1)
Summary	32	(3)
Distributed Computing Using RMI	35	(64)
RMI Alternatives	36	(1)
The RMI Architecture	36	(4)
The Stub and Skeleton Layer	38	(1)
Stubs	38	(1)
Skeletons	39	(1)
The Remote Reference Layer	39	(1)
The Transport Layer	39	(1)
Locating Remote Objects	40	(3)
Policy Files	43	(1)
RMI Exceptions	43	(2)
Developing Applications with RMI	45	(5)
Defining the Remote Interface	45	(1)
Implementing the Remote Interface	46	(1)
Writing the Client That Uses the Remote Objects	47	(1)
Generating Stubs and Skeletons	48	(1)
Registering the Object	48	(1)
Running the Client and Server	49	(1)
The RMISecurityManager	50	(1)
Parameter Passing in RMI	50	(2)
Primitive Parameters	50	(1)
Object Parameters	51	(1)
Remote Parameters	51	(1)
The Distributed Garbage Collector	52	(4)
Dynamically Loading Classes	56	(4)
Remote Callbacks	60	(3)
Object Activation	63	(12)
The Activation Group	64	(2)
ActivationID	66	(1)
Activation Descriptor	66	(2)
Making Objects Activatable	68	(1)
Create the Remote Interface	68	(1)
Create the Object Implementation	69	(1)
Register the Object with the System	69	(2)
Alternative to Extending the Activatable Class	71	(1)
Starting Multiple JVMs Other Than rmid	72	(2)
Deactivation	74	(1)
Custom Sockets and SSL	75	(13)
RMI, Firewalls, and HTTP	88	(2)
HTTP Tunneling	88	(1)
HTTP-to-Port	88	(1)
HTTP-to-CGI	89	(1)
The SOCKS Protocol	90	(1)
Downloaded Socket Factories	90	(1)
RMI Over IIOP	90	(7)
Interoperability with CORBA	91	(1)
RMI-IIOP and Java IDL	92	(1)
Writing Programs with RMI-IIOP	92	(1)
On the Server	93	(1)
In the Client	94	(2)
RMI-IIOP and J2EE	96	(1)
Summary	97	(2)
Database Programming with JDBC	99	(68)
Database Drivers	101	(3)
JDBC-ODBC Bridge	101	(1)
Part Java, Part Native Driver	102	(1)
Intermediate Database Access Server	103	(1)
Pure Java Drivers	103	(1)
The JDBC 2.1 Core API	104	(30)
Loading a Database Driver and Opening Connections	106	(1)
JDBC URLs	106	(1)
DriverManager	107	(3)
Driver	110	(1)
Establishing a Connection	110	(2)
Creating and Executing SQL Statements	112	(1)
An Example: Movie Catalog	113	(5)
Querying the Database Using the ResultSet Interface	118	(3)
Prepared Statements	121	(2)
Mapping SQL Types to Java	123	(2)
Transaction Support	125	(1)
Scrollable and Updatable Result Sets	126	(1)
Scrollable Result Sets	127	(5)
Updatable Result Sets	132	(1)
Batch Updates	133	(1)
The JDBC 2.0 Optional Package API	134	(1)
JDBC Data Sources	135	(6)
The javax.sql.DataSource Interface	135	(1)
The getConnection() Method	135	(1)
The getLoginTimeout() Method	136	(1)
The setLoginTimeout() Method	136	(1)
The getLogWriter() Method	136	(1)
The setLogWriter() Method	136	(1)
JNDI and Data Sources	137	(1)
Creating a Data Source	138	(1)
Retrieving a Data Source	139	(1)
Key Features	140	(1)
The Movie Catalog Revisited	140	(1)
Connection Pooling	141	(6)
Traditional Connection Pooling	142	(2)
JDBC 2.0 Connection Pooling	144	(1)
The javax.sql.ConnectionPoolDataSource Interface	145	(1)
The javax.sql.PooledConnection Interface	145	(1)
The javax.sql.ConnectionEventListener Interface	146	(1)
The javax.sql.ConnectionEvent Class	147	(1)
Connection Pooling Implementation	147	(1)
Distributed Transactions	147	(10)
What is a Transaction?	148	(1)
Brief Background	148	(1)
Transaction Processing-Concepts	149	(1)
Transaction Demarcation	149	(1)
Transaction Context and Propagation	149	(1)
Resource Enlistment	150	(1)
Two-Phase Commit	150	(1)
Building Blocks of Transaction Processing Systems	150	(1)
Application Components	150	(1)
Resource Managers	151	(1)
Transaction Manager	151	(1)
JDBC 2.0 Distributed Transactions	152	(1)
The javax.sql.XADataSource Interface	152	(1)
The javax.sql.XAConnection Interface	152	(1)
The javax.transaction.UserTransaction Interface	153	(1)
Steps for Implementing Distributed Transactions	154	(1)
Configuration	154	(1)
Beginning a Transaction	154	(1)
Database Operations	155	(1)
Ending a Transaction	156	(1)
Special Precautions	156	(1)
RowSets	157	(6)
The javax.sql.RowSet Interface	158	(1)
Properties	158	(1)
Events	159	(1)
Command Execution and Results	159	(1)
Types of Rowsets	160	(1)
Cached Rowsets	160	(2)
JDBC Rowsets	162	(1)
Web Rowset	162	(1)
Summary	163	(4)
JNDI and LDAP	167	(50)
Naming and Directory Services	167	(3)
Naming Services	168	(1)
Directory Services	168	(2)
Enter LDAP	170	(6)
Access Control	170	(1)
Authentication	170	(1)
Authorization	171	(1)
White Pages Services	171	(1)
Distributed Computing Directory	171	(1)
Application Configuration	172	(1)
LDAP Data	172	(4)
Introducing JNDI	176	(4)
Using JNDI	178	(1)
Installing JNDI	178	(1)
JNDI Service Providers (JNDI Drivers)	179	(1)
How to Obtain JNDI Service Providers	179	(1)
Developing Your Own Service Provider	180	(1)
Basic LDAP Operations	180	(21)
Standard LDAP Operations	180	(1)
Connecting to the LDAP Server	181	(1)
Authentication (LDAP Bind)	182	(1)
Simple	183	(1)
SSL/TLS	183	(1)
SASL	183	(1)
Searching an LDAP Server	184	(1)
Example LDAP Filters	184	(1)
LDAP Search Base and Scope	185	(1)
Searching with JNDI	186	(2)
How the Search Program Works	188	(2)
Authenticated Searching	190	(1)
Restricting the Attributes Displayed	191	(2)
Working with LDAP Entries	193	(1)
Adding Entries	193	(5)
Modifying an Entry	198	(2)
Deleting an Entry	200	(1)
Storing and Retrieving Java Objects in LDAP	201	(2)
Traditional LDAP	201	(1)
Serialized Java Objects	202	(1)
Java References	202	(1)
DSML	203	(1)
A Bank Account JNDI Application	203	(12)
Using LDAP with RMI	204	(1)
Application Background	205	(1)
JNDIRemoteBankInterface	206	(1)
JNDIRemoteBankServer	206	(4)
JNDIRemoteBankClient	210	(1)
The Account Class	211	(1)
Running the Application	211	(1)
RMI Without the Registry	212	(1)
Storing Java Objects in the Directory	213	(1)
Building an Object Directory	214	(1)
Summary	215	(2)
XML Beginnings	217	(48)
A Primer on XML	218	(6)
XML and XML Documents	218	(1)
Some Simple Examples	218	(2)
Clarification on Entities, and a Bit of Terminology	220	(1)
A Note on XML Processors/Parsers	220	(1)
Why XML is Great	221	(1)
Main Uses of XML	222	(1)
Java and XML; XML within J2EE	222	(1)
XML within the EJB Container: Deployment Descriptors	223	(1)
XML within the Web Container: web.xml	223	(1)
XML for Integrating Legacy Data	223	(1)
XML and EDI	224	(1)
A Primer on XML Technologies	224	(4)
The Standardization Process and the Role of W3C	225	(1)
SGML and XML	225	(1)
DTDs and XML Schema	226	(1)
XML Styling	226	(1)
Stylesheets and Current Browsers	227	(1)
Namespaces	227	(1)
Well-Formedness Constraints	228	(3)
Attribute Quoting	228	(1)
Tree Structure	228	(1)
Explicit Tree Structure in Markup	228	(1)
An HTML/XHTML/XML Example	229	(1)
From HTML to XHTML	230	(1)
The Logical Structure of an XML Document	231	(11)
XML Documents Without a DTD	231	(1)
A Kitchen-Sink Document Without a DTD	232	(1)
XML Declarations and Character Encodings	232	(1)
Comments and Processing Instructions	233	(1)
The Root Element and its Contents	234	(1)
Character Entities and Pre-Declared Entities	235	(1)
CDATA Sections	235	(1)
XML Documents with DTDs	236	(1)
A Simple Example: DOCTYPE, ELEMENT, and ATTLIST	237	(1)
ELEMENT Declarations	238	(1)
Attribute Declarations	239	(1)
DTD and Entities	240	(1)
Parameter Entities vs. General Entities	241	(1)
Internal and External Entities	241	(1)
External Identifiers - System and Public	241	(1)
An Example of Entity Declarations and References	241	(1)
Read Well-Known DTDs	242	(1)
DTDs, Parsers, and Validation	242	(3)
Parsers and DTDs	242	(1)
XML Schemas	243	(1)
DTD Validators	244	(1)
XML Namespaces	245	(4)
The Main Idea - A Prefix and a URI	245	(1)
A Big Caveat	246	(1)
The Scope of the Namespace Declaration	247	(1)
The Default Namespace	247	(1)
Namespaces and Attribute Names	248	(1)
Namespaces and DTDs	249	(1)
Styling XML with CSS	249	(4)
A CSS1 Example, and an Explanation	249	(2)
Selectors and Declarations	251	(1)
The Syntax of Selectors	251	(1)
Properties and Values	252	(1)
Namespaces and CSS	253	(1)
Styling XML with XSLT	253	(9)
What's XPath?	254	(1)
Trying Out XSLT	254	(1)
XML Data	255	(1)
A Stylesheet Walkthrough	255	(2)
Declarations and Top-Level Parameters	257	(1)
Match the Root of the Document Tree	258	(1)
The First Block of XHTML Material for Output	258	(1)
Match and Collect Elements	258	(1)
Output the Collected Elements, or a Message	258	(1)
A Slight Variation	259	(1)
A Bit More Power	260	(2)
Coming Attractions	262	(1)
Summary	263	(2)
XML Parsing with DOM and SAX	265	(54)
The Origins of DOM and SAX	266	(1)
How Does JAXP Fit In?	266	(1)
The Specific Parser	267	(1)
Chapter Outline	267	(1)
SAX, JAXP, and a Simple Example	267	(6)
SAX Overview	268	(1)
More on DocumentHandler	268	(1)
The Structure of JAXP	269	(1)
A Simple Example: Count the Elements	270	(1)
Program Structure	270	(1)
Variations on Parsing	271	(1)
The org.xml.sax.Parser Class	272	(1)
DOM and Our Example Revisited	273	(2)
Node Types	273	(1)
Node Methods	273	(1)
Element Counting with DOM	274	(1)
Overview of This Chapter's Applications	275	(7)
Two Utility Classes	276	(1)
The PropDict Class	276	(1)
PropDict Code	276	(4)
Web Applications and Local Applications	280	(1)
The Logger Class	280	(1)
The Log File	280	(1)
Control of Logging	281	(1)
The Logger Code	281	(1)
A DOM Application	282	(12)
Local and Web	283	(1)
The DomSearch Class	283	(1)
The main() Method	284	(1)
Overview	285	(1)
doCommand()	285	(1)
initFile(), readFile(), and readDoc()	286	(3)
nextMatch()	289	(2)
resetNode()	291	(1)
Output Methods	291	(1)
Constructor and Get/Set Methods	292	(2)
DOM in Depth	294	(7)
DOM Level 1	294	(1)
XML, DOM, and Language Bindings	295	(1)
Node Types in DOM	295	(1)
Numeric Constants for Node Types	296	(1)
DOM Features Not in the XML 1.0 Specification	296	(1)
On Document Fragments	297	(1)
DOM Bindings	297	(1)
An Example of IDL and Java Bindings	298	(1)
The Structure of the Java Binding	299	(2)
A SAX Application	301	(11)
SAX Reminders	302	(1)
Sax2Writer	302	(1)
The main() Method	302	(1)
Imports, Declarations, Constructors, Set Methods	303	(1)
The parse() Method and newParser()	303	(1)
DocumentHandler Methods	304	(1)
Output Methods	305	(1)
Dom2Sax	306	(1)
Imports, Declarations, and Constructors	307	(1)
Set Methods	308	(1)
parse() Methods	308	(1)
Recursive Parse and its Helpers	309	(2)
The main() Method	311	(1)
parseOpen() and parseClose()	311	(1)
SAX Parsing of Java Objects and SAX Filters	312	(5)
Parsing Objects that are Not XML Text	312	(2)
A Virtual Parsing Example	314	(2)
Extending the Chain: SAX Filters	316	(1)
Summary	317	(2)
Introduction to Web Containers	319	(22)
The HTTP Protocol	320	(2)
HTTP Request Methods	320	(1)
The GET Request Method	321	(1)
The POST Request Method	321	(1)
HTTP Response	321	(1)
Web Containers and Web Applications	322	(7)
Java Servlets	323	(3)
JavaServer Pages	326	(1)
Deployment Descriptors	327	(1)
Structure of Web Applications	328	(1)
Types of Web Containers	328	(1)
Your First Web Application	329	(4)
Prepare the Web Container	330	(1)
Create the HTML File	330	(1)
Create a Servlet	330	(2)
Compile the Source	332	(1)
Write the Deployment Descriptor	332	(1)
Test the Application	332	(1)
The Making of Your Web Application	333	(6)
How the Application Works	333	(1)
Import the Servlet Packages	334	(1)
Class Declaration	335	(1)
Service the HTTP POST Request	335	(2)
The Deployment Descriptor	337	(1)
Location of the Application	338	(1)
Summary	339	(2)
Servlet Programming	341	(48)
Overview of the Java Servlet API	342	(3)
Servlet Implementation	345	(6)
The Servlet Interface	345	(1)
The init() Method	346	(1)
The service() Method	346	(1)
The destroy() Method	346	(1)
The getServletConfig() Method	347	(1)
The getServletlnfo() Method	347	(1)
The GenericServlet Class	347	(1)
The SingleThreadModel Interface	348	(1)
The HttpServlet Class	349	(1)
The service() Methods	349	(1)
The doXXX() Methods	350	(1)
The getLastModified() Method	350	(1)
Servlet Configuration	351	(2)
The ServletConfig Interface	351	(1)
The getInitParameter() Method	352	(1)
The getInitParameterNames() Method	352	(1)
The getServletContext() Method	352	(1)
The getServletName() Method	352	(1)
Obtaining a Reference to ServletConfig	352	(1)
During Servlet Initialization	352	(1)
Using the getServletConfig() Method	353	(1)
Servlet Exceptions	353	(1)
The ServletException Class	353	(1)
The UnavailableException Class	354	(1)
The Servlet Lifecycle	354	(3)
The Servlet Lifecycle - FreakServlet	357	(8)
Instantiation	361	(1)
Initialization	361	(1)
Service	362	(2)
Destroy	364	(1)
API for Requests and Responses	365	(10)
The ServletRequest Interface	366	(1)
Methods for Request Parameters	366	(1)
Methods for Request Attributes	367	(1)
Methods for Input	368	(1)
The HttpServletRequest Interface	368	(2)
Methods for Request Path and URL	370	(1)
Methods for HTTP Headers	371	(1)
The getMethod() Method	371	(1)
The ServletResponse Interface	371	(1)
Methods for Content Type and Length	372	(1)
Methods for Output	372	(1)
Methods for Buffered Output	373	(1)
The HttpServletResponse Interface	374	(1)
Methods for Error Handling	374	(1)
The sendRedirect() Method	375	(1)
Servlet Programming - Tech Support Application	375	(12)
Setting up the HTML Page	375	(2)
Prepare the Database	377	(2)
Creating a Sequencer	379	(1)
Writing the Servlet	380	(3)
Compile the Source	383	(1)
Deployment Descriptor	383	(1)
Tech Support in Action	384	(2)
Note on Database Connections	386	(1)
Summary	387	(2)
Servlet Sessions, Context, and Collaboration	389	(60)
Statelessness and Sessions	390	(2)
Approaches to Session Tracking	392	(4)
URL Rewriting	393	(1)
Hidden Form Fields	394	(1)
Cookies	394	(2)
Session Tracking with the Java Servlet API	396	(19)
Session Creation and Tracking	397	(1)
The HttpSession Interface	398	(1)
Methods for Session Lifetime	398	(2)
Demonstrating Session Lifecycle with Cookies	400	(4)
Session Lifecycle Without Cookies	404	(1)
Methods for Managing State	404	(2)
Demonstrating State Management	406	(2)
Binding and Unbinding Objects to and from Sessions	408	(1)
The HttpSessionBindingListener Interface	409	(1)
The HttpSessionBindingEvent Class	409	(1)
A Simple Shopping Cart Using Sessions	410	(1)
The Catalog Servlet	410	(2)
The ShoppingCart Servlet	412	(3)
Servlet Context	415	(18)
The ServletContext Interface	415	(2)
A Chat Application Using Context and Sessions	417	(2)
The ChatRoom Class	419	(1)
The ChatEntry Class	420	(1)
The Administration Servlet	420	(3)
Servlets for Chatting	423	(8)
Chat Setup	431	(2)
Servlet Collaboration	433	(14)
Servlet Chaining	433	(1)
Request Dispatching	434	(1)
RequestDispatcher Interface	434	(1)
Obtaining a RequestDispatcher Object	435	(1)
Tech Support Revisited	435	(1)
The techsupp.html Page	436	(1)
TechSupportServlet	437	(2)
The register.html Page	439	(1)
RegisterCustomerServlet	440	(2)
ResponseServlet	442	(1)
BannerServlet	443	(1)
TechSupport Setup and Deployment	444	(1)
Using RequestDispathers for Collaboration	445	(2)
Summary	447	(2)
Web Deployment, Authentication, and Packaging	449	(26)
Structure of a Web Application	449	(4)
Directory Structure	450	(2)
Web Archive Files	452	(1)
Mapping Requests to Applications and Servlets	453	(5)
Securing Web Applications	458	(7)
Programmatic Security	461	(1)
Form-Based Authentication	461	(4)
Deployment Configuration	465	(8)
Context Initialization Parameters	465	(1)
Servlet Initialization Parameters	466	(1)
Loading Servlets on Startup	467	(1)
Session Timeout	467	(1)
MIME Mappings	468	(1)
Welcome Files	469	(1)
Error Pages	469	(1)
Sending Errors	469	(1)
Throwing ServletException	470	(1)
Handling HTTP Errors and Exceptions	471	(1)
Distributable Applications	472	(1)
Summary	473	(2)
JSP Basics and Architecture	475	(52)
Introducing JSP	475	(5)
The Nuts and Bolts	480	(31)
JSP Directives	481	(1)
The page Directive	481	(3)
The include Directive	484	(2)
The taglib Directive	486	(1)
Scripting Elements	486	(1)
Declarations	487	(1)
Scriptlets	488	(1)
Expressions	489	(1)
Standard Actions	490	(1)
<jsp:useBean>	491	(2)
<jsp:setProperty>	493	(2)
<jsp:getProperty>	495	(3)
<jsp:param>	498	(1)
<jsp:include>	498	(4)
<jsp:forward>	502	(3)
<jsp:plugin>	505	(1)
Implicit Objects	506	(1)
The request Object	507	(1)
The response Object	507	(1)
The pageContext Object	507	(1)
The session Object	507	(1)
The application Object	507	(1)
The out Object	508	(1)
The config Object	508	(1)
The page Object	508	(1)
Scope	508	(1)
Page Scope	508	(1)
Request Scope	509	(1)
Session Scope	509	(1)
Application Scope	509	(1)
XML Equivalent Tags	509	(1)
DTD and Root Element	509	(1)
Directives	510	(1)
Scripting Elements	510	(1)
Actions	510	(1)
JSP Design Basics	511	(2)
Page-Centric or Client-Server Designs	511	(1)
Page-View	512	(1)
Page-View with Bean	512	(1)
The `Dispatcher' Approach	513	(2)
Mediator-View	513	(1)
Mediator-Composite View	513	(1)
Service to Workers	514	(1)
JSP Technical Support	515	(10)
Application Design	517	(1)
The Welcome Page	517	(1)
The Request-Processing JSP	518	(1)
The TechSupportBean	519	(2)
The Registration Form	521	(1)
The Registration JSP	522	(1)
The Response and Banner JSPs	523	(1)
The Error Page	523	(1)
Deploying the Application	524	(1)
Summary	525	(2)
JSP Tag Extensions	527	(46)
Tag Extension 101	527	(8)
A Simple Tag	530	(2)
Getting it Running	532	(3)
Anatomy of a Tag Extension	535	(14)
Tag Handlers	535	(1)
The javax.servlet.jsp.tagext.Tag Interface	536	(2)
The javax.servlet.jsp.tagext.BodyTag Interface	538	(1)
The javax.servlet.jsp.tagext.BodyContent Class	539	(1)
Convenience Classes	540	(1)
The javax.servlet.jsp.tagext.TagExtralnfo Class	541	(1)
Objects Available to Tag Handlers	541	(1)
The Simple Example Revisited	542	(1)
Tag Library Descriptors	543	(2)
Using Tag Extensions in JSP Pages	545	(1)
Deploying and Packaging Tag Libraries	546	(1)
No Packaging	546	(1)
WAR	546	(1)
Tag Library JAR	547	(2)
Combination of WAR and JAR	549	(1)
Writing Tag Extensions	549	(20)
Processing Attributes	549	(3)
Body Content	552	(1)
Tags Introducing Scripting Variables	553	(1)
Specifying a TagExtralnfo Class	554	(1)
Implementing the TagExtralnfo Class	554	(1)
Changes to the Tag Handler	555	(1)
An Example	555	(2)
Body Tags	557	(1)
Body Tags and Iteration	558	(4)
Body Tags That Filter Their Content	562	(2)
Tag Nesting	564	(5)
Handling Errors	569	(1)
Tag Extension Idioms	569	(2)
Summary	571	(2)
Advanced Custom JSP Tags	573	(42)
An XSL Style Tag	573	(5)
Swing Model Tags	578	(25)
Using the Swing ListModel	579	(3)
Creating a Name-Value Mapping Model	582	(5)
Using the Swing TableModel	587	(16)
Delivery	603	(1)
Under the Hood	604	(4)
Third Party Custom Tags	608	(5)
Flow Control	608	(2)
J2EE Technologies	610	(1)
Client-Side Validation	611	(2)
Tools Support and Future Directions	613	(1)
Summary	613	(2)
Writing Maintainable JSP Pages	615	(70)
The Goal	616	(1)
JSPs in a Multi-Tier Architecture	617	(2)
Techniques for Writing Maintainable JSPs	619	(17)
Request Controller Architecture	619	(1)
Implementing Request Controller Architecture	620	(3)
When Not to Use a Request Controller Architecture	623	(1)
Using Includes in JSP	623	(1)
Two Types of Includes	623	(1)
Using Static Includes	624	(1)
Using JSP Beans	625	(1)
Page Beans	626	(1)
Session Beans	626	(1)
Application Beans	626	(1)
Bean Configuration	627	(1)
Dos and Don'ts	627	(1)
Using Tag Extensions	627	(1)
Categories of Tags	628	(1)
Model Tags	629	(1)
Translation Tags	629	(1)
Tags as Application Building Blocks	629	(1)
Third Party Tag Libraries	629	(1)
Dos and Don'ts	630	(1)
Handling Iteration	630	(1)
Handling Conditional Logic	631	(2)
Using Styled XML	633	(1)
When to Use Custom Superclasses for JSPs	633	(1)
Standard Abstractions for Common Objects	634	(1)
Handling Exceptions	634	(1)
Internationalization	634	(2)
Documenting the JSP Layer	636	(1)
Tool Support	637	(1)
Coding Standards for Maintainable JSPs	637	(5)
Design Principles and Coding Style	637	(3)
Formatting JSP Pages	640	(2)
The DBExplorer Application	642	(40)
Requirements	642	(3)
Design	645	(1)
Implementation	646	(1)
Presentation Tier - The ui and ui.requesthandlers Packages	647	(25)
Data Tier - The datasources and datasources.db Packages	672	(8)
Reviewing the Application	680	(1)
Deploying the Application	680	(2)
Summary	682	(3)
JSP and XML - Working Together	685	(62)
JSP and XML	686	(1)
Modular Design and Modular Reading	686	(1)
A Profiled Newsletter - A Case Study	687	(7)
Caveats	687	(1)
The Main Design Features	688	(1)
An Overview of the Main Components	688	(2)
Try It Out	690	(4)
The Configuration Component	694	(16)
The Reflection Package	694	(1)
The Constructor Class	695	(1)
Invoking Methods	695	(1)
A Config File Example	696	(2)
The Meaning of Tags	698	(1)
The Meaning of Attributes	699	(1)
The Java Code for XML Configuration	699	(1)
Config Classified	700	(1)
The Control Pattern of Config()	701	(2)
Where Are We?	703	(1)
configChild() and Method Invocation	704	(3)
apply() and getMethod() - Invoking the Right Method	707	(3)
JSPs and the Configuration File	710	(1)
The Database Component	710	(16)
DBConnector and Its Default Implementation	711	(2)
QueryHandler	713	(1)
The Main Class	714	(1)
The DBQuery Class	715	(1)
Utilities	716	(2)
XML Configuration for QueryHandler	718	(1)
ResultSetParser	718	(1)
parse() and parseLoop()	719	(1)
The Rest of It	720	(3)
UserDataHandler	723	(1)
Imports, Declarations and Instantiation	723	(3)
XML Data Access Component	726	(4)
DomSearch Queries	726	(1)
DomSearch vs. XSLT	727	(1)
DomSearch Output	727	(1)
Instantiating DomSearch - DSNextMatch	727	(1)
Configuration XML data for DomSearch	728	(1)
Using DomSearch During a Session	729	(1)
The Presentation Component	730	(7)
The Login Page	730	(1)
The Main Frames Page and Initialization	730	(1)
Control and Data Frames	731	(2)
The Logout Page - spLogout.jsp	733	(1)
The Change-Configuration Page - spConfigure.jsp	733	(1)
The Query Results Page - spQuery.jsp	734	(3)
The Control Component	737	(6)
The StampPageFactory Bean	737	(2)
The Configuration Methods and the Configuration File	739	(1)
The Rest of It	740	(1)
The StampPage Bean	741	(2)
Extensions to the Basic Functionality	743	(1)
Summary	744	(3)
An XML-Based JDBC Connector Servlet Framework	747	(64)
Implementing the JDBC Connector Servlet	748	(41)
The Framework's Functional Requirements	748	(2)
The JCS Architecture	750	(1)
The JCS Scripting Framework	751	(2)
JCS Query Tags	753	(3)
Variable Types	756	(2)
The Java Classes that Implement JCS	758	(1)
The com.jresource.util Package	759	(5)
The com.jresources.jdbc Package	764	(2)
The com.jresources.jcs Package	766	(16)
The com.jresources.servlets Package	782	(2)
Other Artifacts	784	(1)
The JSP Custom Tag Library Descriptor (jcs_taglib.tld)	784	(1)
The Web Application Deployment Descriptor (web.xml)	784	(2)
Packaging the Framework for J2EE Deployment	786	(1)
Compile the Java Classes	787	(1)
Package the Bytecode into a Jar	787	(1)
Generate the Javadoc Documentation	787	(1)
Package the Application into a War	787	(1)
Deploying JCS to a J2EE Servlet Container	788	(1)
Using the JDBC Connector Servlet	789	(20)
The Guestbook Sample Application	789	(2)
Creating a Select query	791	(2)
Creating an Insert Query	793	(1)
Creating a Delete Query	794	(1)
Generating Default XML Output (JDBC Resultset Serialized as XML)	794	(1)
Generating Custom XML Output	795	(1)
Using the jcsEngine Bean in a JSP Page	796	(3)
Using the <jcs:query_object> Custom Tag in a JSP Page	799	(1)
Using XSLT with JCS	799	(4)
The SQL Server Database Browser Application	803	(1)
Enumerating Through SQL Server Tables	804	(2)
Serializing a SQL Server Table as an XML Document	806	(1)
Executing an Arbitrary SQL Statement	807	(2)
Summary	809	(2)
JavaMail	811	(52)
Setup Instructions	812	(1)
The Provider Registry	812	(1)
The JavaMail API	813	(31)
javax.mail.Session	814	(1)
Session Properties	815	(1)
javax.mail.Authenticator and Password/Authentication	816	(1)
javax.mail.Message	817	(1)
Constructing a Message	818	(1)
Message Headers	818	(4)
Message Flags	822	(2)
javax.mail.Part	824	(1)
Activation	824	(1)
Content	825	(2)
Part Headers	827	(2)
javax.mail.Multipart and BodyPart	829	(1)
javax.mail.internet.MimePart	830	(1)
javax.mail.internet.MimeMessage	831	(1)
javax.mail.internet.MimeMultipart and MimeBodyPart	832	(2)
javax.mail.Service	834	(1)
javax.mail.Transport	835	(2)
javax.mail.Store	837	(1)
javax.mail.Folder	838	(6)
javax.mail.search.*	844	(1)
Working Example	845	(15)
Summary	860	(3)
EJB Architecture and Design	863	(42)
Enterprise JavaBeans vs. JavaBeans	864	(1)
What Are EJBs?	865	(4)
Varieties of Beans	866	(1)
Why Use EJBs In Your Design?	867	(2)
The EJB Container and Its Services	869	(5)
Persistence	869	(1)
Declarative Transactions	870	(1)
Data Caching	870	(1)
Declarative Security	870	(1)
Error Handling	870	(1)
Component Framework for Business Logic	870	(1)
Scalability and Fail-Over	871	(1)
Portability	871	(1)
Manageability	871	(1)
How the Container Provides Services	871	(1)
Contracts	872	(1)
Services	873	(1)
Interposition	873	(1)
Working with EJBs	874	(13)
The Client Developer's View	875	(3)
The Bean Programmer's View	878	(6)
What You Can't Do in an EJB Component	884	(1)
You Can't Use Threads or the Threading API	885	(1)
You Can't Use the AWT	885	(1)
You Can't Act as a Network Server	885	(1)
You Can't Use Read/Write Static Fields	886	(1)
You Can't Use the java.io Package	886	(1)
You Can't Load a Native Library	886	(1)
You Can't Use ``this'' as an Argument or Return Value	886	(1)
You Can't/Shouldn't Use Loopback Calls	886	(1)
EJB Components on the Web	887	(2)
Client-Tier Access to EJBs	889	(1)
Design of the EJB Tier	890	(13)
UML Use Cases	891	(1)
Analysis Objects	891	(2)
Analysis vs. Implementation	893	(2)
The Role of State in the Interface Object	895	(1)
An Example of EJB Design	895	(2)
Create a Product	897	(1)
Place an Order	897	(1)
Cancel an Order	897	(1)
Select an Order for Manufacture	898	(1)
Build a Product	898	(1)
Ship an Order	898	(1)
List Overdue Orders	898	(5)
Summary	903	(2)
Session Beans and Business Logic	905	(62)
Session Beans and State	906	(6)
Representing Business Logic	906	(3)
The Difficult Problem of Conversational State	909	(2)
Session Beans and Persistent Storage	911	(1)
The Financial Aid Calculator Bean	912	(20)
The Stateless Financial Calculator Bean	912	(8)
The Stateful Financial Calculator Bean	920	(7)
Combining Stateful and Stateless Beans	927	(5)
Implementing Our Manufacturing Application	932	(33)
Clients and the Business Logic Interfaces	934	(14)
Stateless Session Bean Implementation	948	(1)
Business Methods	948	(7)
Implementation Helper Methods	955	(2)
Lifecycle and Framework Methods	957	(1)
Stateful Session Bean Implementation	958	(7)
Summary	965	(2)
Entity Beans and Persistence	967	(62)
Why Not Use Session Beans?	968	(5)
Using a Stateful Session bean	968	(3)
Using a Stateless Session Bean	971	(2)
Benefits of Entity Beans	973	(1)
Container- vs. Bean-Managed Persistence	973	(34)
The SportBean Laboratory	975	(1)
Primary Keys	976	(1)
The C.R.U.D. Callbacks	976	(12)
BMP Callbacks vs. CMP Callbacks	988	(1)
The Deployment Descriptor	989	(1)
Caching	990	(3)
Finder Methods	993	(3)
Activation and Passivation	996	(1)
The Complete Lifecycle	996	(1)
Reentrancy	997	(1)
Completing the Sports Team Example	998	(9)
Relationships	1007	(1)
Completing Our Manufacturing Application	1008	(19)
The Order Bean	1008	(6)
The Product Bean	1014	(4)
The Complete Deployment Descriptor	1018	(3)
Running the Manufacturing Application	1021	(6)
Summary	1027	(2)
EJB Container Services	1029	(42)
Transactions	1031	(19)
Transactions Without a Container	1032	(8)
Declarative Semantics for Transactions	1040	(1)
The `NotSupported' Transactional Attribute	1040	(1)
The `Supports' Transactional Attribute	1040	(1)
The `RequiresNew' Transactional Attribute	1041	(1)
The `Required' Transactional Attribute	1041	(1)
The `Mandatory' Transactional Attribute	1041	(1)
The `Never' Transactional Attribute	1041	(1)
Specifying Transactional Attributes	1041	(1)
Choosing Transaction Attributes	1042	(2)
User-Controlled Transactions	1044	(2)
Isolation Levels	1046	(2)
Long Transactions	1048	(1)
Optimistic Locking	1049	(1)
Pessimistic Locking	1049	(1)
Two-Phase Commit	1050	(1)
Security	1050	(8)
Specifying the Security Requirements	1052	(1)
Security Roles	1052	(2)
Method Permissions	1054	(1)
Programmatic Access Control	1055	(3)
Security and Application Design	1058	(1)
Exceptions	1058	(7)
Application Exceptions	1059	(3)
Predefined Application Exceptions	1062	(1)
System Exceptions	1062	(3)
Communication	1065	(3)
Communication Between Heterogeneous Servers	1065	(2)
In-VM Method Calls	1067	(1)
Summary	1068	(3)
Development and Deployment Roles	1071	(58)
The Enterprise Bean Provider	1073	(12)
The Application Assembler	1085	(8)
The Deployer	1093	(4)
The System Administrator	1097	(2)
Container/Application Server Vendor	1099	(1)
A Web Interface for the Manufacturing App	1100	(24)
Troubleshooting Tips	1124	(2)
Summary	1126	(3)
Enterprise JavaBeans 2.0	1129	(48)
New Features of EJB 2.0	1130	(1)
Container-Managed Persistence in EJB 2.0	1131	(24)
The cmp-field Type	1134	(2)
The cmr-field Type	1136	(1)
If the endpoint is a dependent object class...	1137	(1)
If the endpoint is an entity bean...	1137	(1)
How to Specify the Relationship in the Deployment Descriptor	1138	(5)
The Complete CMP 2.0 Deployment Descriptor	1143	(4)
Coding CMP 2.0 Beans	1147	(1)
Fields	1147	(1)
Relationships	1148	(1)
The Manufacturing Sample Application	1149	(6)
The EJB 2.0 Query Language	1155	(8)
Where Does the Programmer Specify a Query?	1156	(1)
How Does the Programmer Specify a Query?	1157	(1)
The Concept of the Schema	1158	(1)
Understanding the Context	1158	(1)
Navigation Operator ``.''	1159	(1)
Navigating Over Collections	1159	(1)
Input Parameters	1160	(1)
Other Entity Beans	1160	(1)
Where Clause Options	1161	(1)
Queries from the Manufacturing Application	1162	(1)
Message-Driven Beans	1163	(3)
Business Methods in the Home Interface	1166	(7)
Summary	1173	(4)
Design Considerations for J2EE Applications	1177	(32)
The World is Changing	1178	(1)
Design Context	1179	(2)
On Architecture and Design	1181	(5)
Architectural Styles	1182	(2)
Forces, Patterns, and Iteration	1184	(2)
Distributed Design	1186	(1)
Start at the Beginning	1187	(3)
Adding the Middle Tier	1190	(2)
Going Shopping	1192	(2)
Submitting and Processing the Order	1194	(3)
Lessons Learned	1197	(3)
Use Model-View-Controller (MVC) for User Interaction	1197	(1)
JSP Design Principles	1198	(1)
Choosing an Appropriate Data Format	1198	(1)
Reduce the Amount of Data Passed	1199	(1)
Design Interfaces for Distribution	1199	(1)
Use Messaging for Asynchronous Operations	1200	(1)
Plan Transactions	1200	(1)
Beyond the Purchase Order System	1200	(4)
EJB Interface Design	1200	(1)
Distributed Events	1201	(1)
Working with Databases	1202	(1)
State Management	1203	(1)
On Architecture and Process	1204	(1)
Summary	1205	(4)
Performance and Scalability	1209	(50)
Life is a Compromise	1210	(4)
Time-to-Market	1211	(1)
The Upside and Downside of Delegation	1212	(2)
The Importance of Being Scalable	1214	(2)
Denial of Service?	1216	(1)
Performance	1216	(19)
Coding Issues	1217	(1)
Performance Testing and Tuning	1217	(1)
Performance Analysis	1218	(1)
Prioritize	1218	(1)
Corrective Action	1219	(1)
Design-Time Issues	1220	(1)
Component-level Architecture	1221	(3)
Granularity	1224	(2)
Container Overheads	1226	(1)
The Art of Component Granularity	1226	(4)
Transactional Granularity	1230	(1)
Persistence Granularity	1231	(1)
Security and Performance	1232	(1)
Service-Level Architecture	1232	(1)
The Object Soup	1233	(1)
Component Partitioning	1234	(1)
Caching Strategies	1234	(1)
Scalability	1235	(20)
Scalability and Performance Testing	1237	(1)
Tips, Tools, and Techniques	1237	(2)
Designing for Good Scalability	1239	(1)
Concurrency	1239	(5)
Optimistic and Pessimistic Locking	1244	(2)
Data Flow and Caching	1246	(1)
Read to Write Ratios	1247	(1)
Object Caching	1248	(3)
Scalability Through Replication	1251	(1)
Server Replication and Clustering	1252	(3)
Project Planning for Good Performance and Scalability	1255	(1)
Summary	1256	(3)
Debugging Java Server Applications	1259	(28)
Differences of Java Server Programming	1260	(10)
The Java Language	1260	(1)
The Application Runs on the Server	1260	(1)
Long Running Processes	1261	(3)
Robustness and Stability	1264	(2)
Multi-User/Multi-Thread	1266	(3)
Performance	1269	(1)
Debugging Tools and Techniques	1270	(15)
Integrated Debuggers	1270	(1)
Do-It-Yourself, the JDB	1271	(2)
A Broader View	1273	(1)
Eyeballing	1273	(1)
System.out.println()	1274	(5)
Unit Testing	1279	(1)
Self-Made Monitoring Tools	1280	(5)
Summary	1285	(2)
Unit Testing J2EE Applications	1287	(40)
What is Unit Testing?	1288	(2)
What is a Unit?	1289	(1)
Introduction to the JUnit Framework	1290	(1)
Using the JUnit Framework	1290	(2)
How to Approach Unit Testing	1292	(3)
Steps of Unit Testing	1292	(1)
Writing Testable Code	1293	(1)
Why Unit Test?	1294	(1)
Unit Testing of Simple Objects	1295	(13)
Unit Testing a Utility Object	1295	(7)
Unit Testing a Business Object	1302	(6)
Unit Testing Servlets	1308	(10)
Unit Testing the Database Access Layer	1318	(1)
Unit Testing JSPs	1319	(2)
Unit Testing EJBs and RMI Objects	1321	(4)
Summary	1325	(2)
The Java Message Service	1327	(34)
Messaging Systems	1327	(1)
JMS Programming	1328	(19)
Publish and Subscribe Programming	1329	(1)
Connections and Sessions	1330	(1)
Topics	1331	(1)
Publishing a Message	1331	(2)
Subscribing to Topics	1333	(1)
Receiving Messages	1334	(1)
Unsubscribing From a Durable Subscription	1335	(1)
Point-to-Point Programming	1335	(1)
Sending Messages	1336	(1)
Receiving Messages	1336	(1)
Queue Browsing	1337	(1)
Messages	1338	(1)
Message Format	1338	(1)
Message Types	1338	(1)
Creating a Message	1338	(2)
JMS Programming Techniques and Issues	1340	(1)
Transactions	1340	(1)
Programmatic Message Acknowledgement	1341	(1)
Message Routing	1341	(2)
Messaging Reliability	1343	(1)
Using JMS to Transport XML	1343	(2)
Request-Reply Programming	1345	(2)
Using Queues to Load Balance Between Servers	1347	(1)
JMS Implementations	1347	(1)
A Sample Application	1348	(7)
Code Overview	1349	(1)
Initialization	1349	(2)
Input Loop	1351	(2)
Message Handler	1353	(1)
Running the Application	1354	(1)
Message-Based Integration with JMS	1355	(4)
JMS and XML as an Integration Platform	1355	(1)
Architectural Patterns for Integration	1356	(2)
Beyond Integration - Designing Open Applications	1358	(1)
Summary	1359	(2)
Integration with CORBA	1361	(64)
Tools Used in this Chapter	1362	(1)
CORBA Overview	1362	(20)
Object Location	1367	(15)
An IDL Primer	1382	(5)
Basic IDL Types	1382	(1)
Complex IDL Types	1382	(1)
Structures	1382	(1)
Enums	1383	(1)
Unions	1383	(1)
Arrays and Sequences	1383	(1)
Modules	1384	(1)
Interfaces	1384	(1)
Attributes	1384	(1)
Operations	1384	(1)
Exceptions	1385	(1)
Inheritance	1386	(1)
Multiple Inheritance	1387	(1)
J2EE and CORBA	1387	(14)
The WroxQuotes CORBA Object	1388	(4)
Writing the CORBA Object and Server	1392	(4)
Coding the CORBA Client	1396	(3)
Building and Running the Example	1399	(2)
Integration with J2EE	1401	(22)
Servlets and CORBA Objects	1401	(5)
Deploying and Running the Servlet	1406	(4)
JavaServer Pages and CORBA Objects	1410	(4)
Deploying and Running the JavaServer Page	1414	(1)
Enterprise JavaBeans and CORBA Objects	1414	(4)
Building the Enterprise JavaBean	1418	(1)
Deploying the Enterprise JavaBean	1418	(1)
Testing the Enterprise JavaBean	1419	(3)
J2EE as CORBA Clients Overview	1422	(1)
Summary	1423	(2)
Putting It All Together - J2EE Applications	1425	(34)
J2EE Applications	1425	(7)
J2EE Modules	1426	(1)
Web Applications	1426	(1)
EJB JARs	1426	(1)
Application Clients	1427	(1)
The alt-dd Element	1427	(1)
The Application Deployment Descriptor	1427	(2)
The Structure of a J2EE Application	1429	(1)
Enterprise Archive (EAR) Files	1429	(1)
The Application Assembler Role	1430	(1)
The Deployer Role	1430	(1)
Why J2EE Applications Matter	1430	(1)
Future Development of J2EE Applications	1431	(1)
Designing a J2EE Application	1432	(1)
The Application Development Lifecycle	1433	(1)
Building a Complete J2EE Application	1434	(23)
Requirements	1435	(1)
Design	1435	(1)
Implementing the Components	1436	(1)
EJB Module Implementation	1436	(4)
Web Module Implementation	1440	(3)
Component Packaging/Assembly	1443	(1)
Packaging the EJBs	1443	(2)
Packaging the Web Module	1445	(1)
Packaging the Swing Client	1445	(1)
Application Assembly	1446	(1)
Assembling the Application Using the Reference Implementation	1446	(1)
Assembling the Application Using Orion	1447	(1)
Manual Application Assembly	1448	(2)
Application Deployment	1450	(1)
Deploying in the J2EE Reference Implementation	1450	(2)
Deploying in Orion	1452	(2)
Running the Application	1454	(1)
Using Other Application Servers	1455	(2)
Summary	1457	(2)
Appendix A: Configuring Tomcat and JRun	1459	(14)
Tomcat Installation and Configuration	1459	(5)
Installing Tomcat	1459	(1)
server.xml	1460	(1)
web.xml	1461	(1)
Where to Put JSPs and Beans in a Web Application	1462	(2)
JRun 3.0 Installation and Configuration	1464	(9)
About JRun	1464	(1)
Obtaining JRun	1464	(1)
Installation	1464	(2)
Connecting to an External Web Server	1466	(2)
Where to Place Servlets, JSPs and Beans in a Web Application	1468	(1)
Creating an Application	1469	(1)
Under the Hood	1469	(2)
Enterprise JavaBeans	1471	(1)
Technical Support	1471	(2)
Appendix B: Setting Up Netscape's iPlanet Directory Server	1473	(14)
Installation	1474	(8)
Using Netscape Console	1482	(5)
Appendix C: HTTP Reference	1487	(14)
URL Request Protocols	1487	(1)
HTTP Basics	1488	(6)
Client Request	1488	(1)
HTTP Request Methods	1489	(1)
Server Response	1490	(1)
HTTP Headers	1491	(3)
Server Environment Variables	1494	(7)
Appendix D: Internationalization	1501	(28)
Character Sets	1502	(3)
Character Encodings	1503	(1)
Character Encoding Support in the Java Core API	1503	(1)
IANA Charset Names	1504	(1)
Content Negotiation	1505	(5)
Character Encoding Support in the Servlet API	1510	(16)
The Internationalization Servlet	1511	(5)
Returning a Variant of a Text File	1516	(1)
Server-Driven Content Negotiation	1516	(1)
Client-Driven Content Negotiation	1517	(9)
Summary	1526	(3)
Appendix E: Swing HTML Generation	1529	(40)
Problems with Servlets and JSP	1530	(4)
Emerging Options	1531	(1)
Which Solution?	1532	(1)
The HTML Generator Solution	1533	(1)
The Swing HTML Packages	1534	(9)
Creating a Java Object from an HTML File	1536	(1)
Handling HTML Form Items	1537	(2)
Accessing and Editing the Elements	1539	(1)
Setting Text Fields	1540	(1)
Setting Selects	1541	(2)
The Form Tag Hack	1543	(3)
A Simple HTML Generator	1546	(12)
The MiniParser Class	1546	(7)
The Helper Class	1553	(5)
A Servlet Example	1558	(6)
The Servlet	1560	(3)
Running the Servlet in Tomcat	1563	(1)
A JSP Example	1564	(1)
Problems and Development Potential	1565	(1)
Summary	1566	(3)
Appendix F: Support, Errata and P2P.Wrox. Com	1569	(6)
The Online Forums at P2P.Wrox.Com	1570	(1)
How to Enroll for Support	1570	(1)
Why This System Offers the Best Support	1570	(1)
Checking the Errata Online at www.wrox.com	1571	(2)
Wrox Developer's Membership	1571	(1)
Finding an Errata on the Web Site	1572	(1)
Add an Errata: E-mail Support	1573	(1)
Customer Support	1573	(1)
Editorial	1573	(1)
The Authors	1573	(1)
What We Can't Answer	1573	(1)
How to Tell Us Exactly What You Think	1573	(2)
A Guide to the Index	1575