Preface

This preface introduces you to the Oracle Database JPublisher User's Guide, discussing the intended audience, structure, and conventions of this document. A list of related Oracle documents is also provided.

The JPublisher utility is for Java programmers who want classes in their applications to correspond to SQL or PL/SQL entities or server-side Java classes. In Oracle Database 10g, JPublisher also provides features supporting Web services call-ins to the database and call-outs from the database.

This preface contains these topics:

Intended Audience
Documentation Accessibility
Structure
Related Documents
Conventions

Intended Audience

The Oracle Database JPublisher User's Guide is intended for JDBC and J2EE programmers who want to accomplish any of the following for database applications:

Create Java classes to map to SQL user-defined types, including object types, VARRAY types, and nested table types
Create Java classes to map to OPAQUE types
Create Java classes to map to PL/SQL packages
Create client-side Java stubs to call server-side Java classes
Publish SQL queries or DML statements as methods in Java classes
Create Java and PL/SQL wrappers for Web services client proxy classes, to enable call-outs to Web services from the database
Publish server-side SQL, PL/SQL or Java entities as Web services, to enable call-ins from outside the database

To use this document, you need knowledge of Java, Oracle Database, SQL, PL/SQL, and JDBC.

Documentation Accessibility

Our goal is to make Oracle products, services, and supporting documentation accessible, with good usability, to the disabled community. To that end, our documentation includes features that make information available to users of assistive technology. This documentation is available in HTML format, and contains markup to facilitate access by the disabled community. Standards will continue to evolve over time, and Oracle is actively engaged with other market-leading technology vendors to address technical obstacles so that our documentation can be accessible to all of our customers. For additional information, visit the Oracle Accessibility Program Web site at

http://www.oracle.com/accessibility/

Accessibility of Code Examples in Documentation

JAWS, a Windows screen reader, may not always correctly read the code examples in this document. The conventions for writing code require that closing braces should appear on an otherwise empty line; however, JAWS may not always read a line of text that consists solely of a bracket or brace.

Accessibility of Links to External Web Sites in Documentation

This documentation may contain links to Web sites of other companies or organizations that Oracle does not own or control. Oracle neither evaluates nor makes any representations regarding the accessibility of these Web sites.

Structure

This document contains:

Chapter 1, " Introduction to JPublisher"

Introduces the JPublisher utility by way of example, lists new features in this release, and provides an overview of JPublisher operations.

Chapter 2, " Datatype and Java-to-Java Type Mappings"

Provides details of JPublisher datatype mappings and the "styles" mechanism for Java-to-Java type mappings.

Chapter 3, " Generated Classes and Interfaces"

Discusses details and concepts of the classes, interfaces, and subclasses generated by JPublisher, including how output parameters (PL/SQL IN OUT or OUT parameters) are treated, how overloaded methods are translated, and how to use the generated classes and interfaces.

Chapter 4, " Additional Features and Considerations"

Covers additional JPublisher features and considerations: a summary of support for Web services; filtering of JPublisher output; and migration and backward compatibility.

Chapter 5, " Command-Line Options and Input Files"

Provides details of the JPublisher command-line syntax, command-line options and their usage, and input file format.

Appendix A, " Generated Code Examples"

Contains code examples that are too lengthy to fit conveniently with corresponding material earlier in the manual. This includes examples of Java-to-Java type transformations to support Web services, and Java and PL/SQL wrappers to support Web services.

Related Documents

For more information, see the following Oracle resources.

From the Oracle Java Platform group, for Oracle Database releases:

Oracle Database Java Developer's Guide

This book introduces the basic concepts of Java in Oracle Database and provides general information about server-side configuration and functionality. It contains information that pertains to the Oracle Database Java environment in general, rather than to a particular product such as JDBC.

The book also discusses Java stored procedures, which are programs that run directly in Oracle Database. With stored procedures (functions, procedures, and triggers), Java developers can implement business logic at the server level, thereby improving application performance, scalability, and security.
Oracle Database JDBC Developer's Guide and Reference

This book covers programming syntax and features of the Oracle implementation of the JDBC standard (Java Database Connectivity). This includes an overview of the Oracle JDBC drivers, details of the Oracle implementation of JDBC 1.22, 2.0, and 3.0 features, and discussion of Oracle JDBC type extensions and performance extensions.

From the Oracle Java Platform group, for Oracle Application Server releases:

From the Oracle Server Technologies group:

Note:

Oracle error message documentation is available in HTML only. If you have access to the Oracle Documentation CD only, you can browse the error messages by range. Once you find the specific range, use the "find in page" feature of your browser to locate the specific message. When connected to the Internet, you can search for a specific error message using the error message search feature of the Oracle online documentation.

From the Oracle Application Server group:

From the Oracle JDeveloper group:

JDeveloper online help
JDeveloper documentation on the Oracle Technology Network:
```
http://otn.oracle.com/products/jdev/content.html
```

Printed documentation is available for sale in the Oracle Store at

http://oraclestore.oracle.com/

To download free release notes, installation documentation, white papers, or other collateral, please visit the Oracle Technology Network (OTN). You must register online before using OTN; registration is free and can be done at

http://otn.oracle.com/membership/

If you already have a user name and password for OTN, then you can go directly to the documentation section of the OTN Web site at

http://otn.oracle.com/documentation/

For additional information, see:

http://jcp.org/aboutJava/communityprocess/final/jsr101/index.html

The preceding link provides access to the Java API for XML-based RPC, JAX-RPC 1.0 specification, with information about JAX-RPC and holders.

http://java.sun.com/j2se/1.3/docs/tooldocs/solaris/native2ascii.html

For JDK users, the preceding link contains native2ascii documentation, including information about character encoding that is supported by Java environments.

Conventions

This section describes the conventions used in the text and code examples of this documentation set. It describes:

Conventions in Text
Conventions in Code Examples

Conventions in Text

We use various conventions in text to help you more quickly identify special terms. The following table describes those conventions and provides examples of their use.

Convention	Meaning	Example
Italics	Italic typeface indicates book titles or emphasis, or terms that are defined in the text.	Oracle Database Concepts Ensure that the recovery catalog and target database do not reside on the same disk.
`UPPERCASE monospace (fixed-width) font`	Uppercase monospace typeface indicates system elements. Such elements include parameters, privileges, datatypes (including user-defined types), RMAN keywords, SQL keywords, SQL*Plus or utility commands, packages and methods, as well as system-supplied column names, database objects and structures, user names, and roles.	You can specify this clause only for a `NUMBER` column. You can back up the database by using the `BACKUP` command. Query the `TABLE_NAME` column in the `USER_TABLES` data dictionary view. Use the `DBMS_STATS`.`GENERATE_STATS` procedure.
`lowercase monospace (fixed-width) font`	Lowercase monospace typeface indicates executables, file names, directory names, and some user-supplied elements. Such elements include computer and database names, net service names, and connect identifiers, as well as Java packages and classes, program units, and parameter values. Note: Some programmatic elements use a mixture of UPPERCASE and lowercase. Enter these elements as shown.	Enter `sqlplus` to start SQL*Plus. The password is specified in the `orapwd` file. Back up the data files and control files in the `/disk1/oracle/dbs` directory. The `department_id`, `department_name`, and `location_id` columns are in the `hr.departments` table. Set the `QUERY_REWRITE_ENABLED` initialization parameter to `true`. The `JRepUtil` class implements these methods.
`lowercase italic monospace (fixed-width) font`	Lowercase italic monospace font represents placeholders or variables.	You can specify the `parallel_clause`. Run `old_release``.SQL` where `old_release` refers to the release you installed prior to upgrading.

Conventions in Code Examples

Code examples illustrate Java, SQL, PL/SQL, SQL*Plus, or command-line statements. They are displayed in a monospace (fixed-width) font and separated from normal text as shown in this example:

SELECT username FROM dba_users WHERE username = 'MIGRATE';

The following table describes typographic conventions used in code examples and provides examples of their use.

Convention	Meaning	Example
[ ]	Brackets enclose one or more optional items. Do not enter the brackets.	DECIMAL (digits [ , precision ])
{ }	Braces enclose two or more items, one of which is required. Do not enter the braces.	{ENABLE \| DISABLE}
\|	A vertical bar represents a choice of two or more options within brackets or braces. Enter one of the options. Do not enter the vertical bar.	{ENABLE \| DISABLE} [COMPRESS \| NOCOMPRESS]
...	Horizontal ellipsis points indicate either: That we have omitted parts of the code that are not directly related to the example That you can repeat a portion of the code	CREATE TABLE ... AS subquery; SELECT col1, col2, ... , coln FROM employees;
Other notation	You must enter symbols other than brackets, braces, vertical bars, and ellipsis points as shown.	acctbal NUMBER(11,2); acct CONSTANT NUMBER(4) := 3;
Italics	Italicized text indicates placeholders or variables for which you must supply particular values.	CONNECT SYSTEM/system_password DB_NAME = database_name
UPPERCASE	Uppercase typeface indicates elements supplied by the system. We show these terms in uppercase in order to distinguish them from terms you define. Unless terms appear in brackets, enter them in the order and with the spelling shown. However, because these terms are not case sensitive, you can enter them in lowercase.	SELECT last_name, employee_id FROM employees; SELECT * FROM USER_TABLES; DROP TABLE hr.employees;
lowercase	Lowercase typeface indicates programmatic elements that you supply. For example, lowercase indicates names of tables, columns, or files. Note: Some programmatic elements use a mixture of UPPERCASE and lowercase. Enter these elements as shown.	SELECT last_name, employee_id FROM employees; sqlplus hr/hr CREATE USER mjones IDENTIFIED BY ty3MU9;