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HCL Domino Designer Basic User Guide and Reference
This guide provides information on using HCL Domino Designer and programming language reference information.
Java/CORBA Classes
This section documents the Java/CORBA classes.
Java™ Classes Coding Guidelines
Accessing items in Java™ classes
Working with custom data using Java™
You can store data of your own format in items. Use the following methods in the Document and Item classes:

HCL Domino Designer Basic User Guide and Reference
This guide provides information on using HCL Domino Designer and programming language reference information.
- What's new in HCL Domino Designer 12?
  The following features are new for developers in HCL Domino® Designer 12.
- Accessibility and keyboard shortcuts
  Accessibility features assist users who have a disability, such as restricted mobility or limited vision, to use information technology content successfully.
- Application Design
  Welcome to the Application Design section of Domino® Designer Help.
- Application Management
  Welcome to the Application Management section of Domino® Designer Help.
- Domino® Query Language
  Domino® Query Language (DQL) is a facility running on a Domino server that provides a terse, shorthand syntax for finding documents. It supports a wide variety and complexity of search terms. It leverages existing design elements, avoiding the need to write detailed code to access them. DQL consolidates all methods in Domino for searching document contents.
- Composite Applications - Design and Management
  Composite applications are a key element in a service-oriented architecture (SOA) and contextual collaboration strategy. The ability to create and edit composite applications lets you easily integrate different types of components and technologies.
- DB2® Access views
  Domino® Designer includes two types of design elements to assist you in managing data contained in DB2® enabled Notes® databases:
- Programming Overview and User Interface
  This section contains general guidelines and examples that show where to use Java, LotusScript, and the formula language.
- Formula Language
  This section documents the formula language.
- LotusScript® Language
  Welcome to the LotusScript® Language section of Domino® Designer Help.
- LotusScript/COM/OLE Classes
- Java/CORBA Classes
  This section documents the Java/CORBA classes.
  - Java™ Classes Coding Guidelines
    - Running a Java™ program
      You can call the Domino® Objects from a Java™ program by importing the lotus.domino package. The program can be coded as an application, a Domino agent, an applet, or a servlet. Local calls access run-time code on the local computer, which must have Domino installed. CORBA-based remote (IIOP) calls access run-time code from a remote Domino server; in this case, the local computer need not have Domino installed. Compilation must be on a computer with Domino Designer installed.
    - Accessing databases
    - Accessing views and folders using Java™
    - Accessing documents in Java™ classes
    - Accessing items in Java™ classes
      - Accessing item properties in Java™ classes
        You access item properties through the following methods:
      - Getting an item and its values in Java™ classes
      - Creating an item and assigning values in Java™ classes
      - Copying an item in Java™ classes
      - Removing an item in Java™ classes
      - Parsing and transforming an item in Java™ classes
      - Working with a MIME entity in Java™ classes
      - Working with an embedded object in Java™ classes
      - Working with custom data using Java™
        You can store data of your own format in items. Use the following methods in the Document and Item classes:
    - Accessing rich text items in Java™ classes
    - Accessing Domino® sessions
  - Java™ Classes A-Z
- Connectors
  Connectors provide native access to a wide variety of DBMS products, ODBC, the platform File system, Enterprise Resource Planning systems, and Transaction Processing systems.
- Javadoc™ for Domino® Designer related APIs
  As part of providing additional Java™ reference documentation, Domino® Designer ships with a help plugin that contains Javadoc™ for additional Domino Designer related APIs.

Working with custom data using Java™

You can store data of your own format in items. Use the following methods in the Document and Item classes:


Document	Item	Description
getItemValueCustomData	getValueCustomData	Gets custom data in the form of an object.
getItemValueCustomDataBytes	getValueCustomDataBytes	Gets custom data in the form of a byte array.
replaceItemValueCustomData	setValueCustomData	Writes custom data in the form of an object.
replaceItemValueCustomDataBytes	setValueCustomDataBytes	Writes custom data in the form of a byte array.

An item that contains custom data is of type Item.USERDATA (14).

If you store data using an object, do not change the defining class.

If you plan on working with custom data through another interface, such as LotusScript®, use the byte array methods.

Note: In Release 6, custom data was added for Java™. In Release 6.5, custom data was added for CORBA, LotusScript®, and COM. LotusScript® and COM support only the byte array methods.

When you store data, you can specify a data type name that must be supplied when you get the data.

Domino® Objects cannot be stored as custom data.