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HCL Domino Designer 12.0.1 documentation
  • HCL Domino Designer Basic User Guide and Reference
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  2. HCL Domino Designer Basic User Guide and Reference

    This guide provides information on using HCL Domino Designer and programming language reference information.

  3. LotusScript® Language

    Welcome to the LotusScript® Language section of Domino® Designer Help.

  4. Data Types, Constants, and Variables

    This chapter provides information about LotusScript® constants and variables and the data types of the values that they can represent.

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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.

    • 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.

      • Introduction to LotusScript®

        This chapter introduces LotusScript® and describes, in general terms, how to use the script editor to write and modify scripts, how to compile scripts, and how to use the debugger to locate problems in the logic of your applications.

      • Script and Statement Construction Rules

        This chapter describes the rules for writing the basic elements of a script in the LotusScript® language.

      • Data Types, Constants, and Variables

        This chapter provides information about LotusScript® constants and variables and the data types of the values that they can represent.

        • Summary of LotusScript® data types

          LotusScript® recognizes the following scalar (numeric and string) data types:

        • Data type conversion

          LotusScript® implicitly converts data from one type to another in the following situations.

        • Explicit data type conversion

          LotusScript® provides several built-in functions for explicitly converting a value's data type. These functions include CBool, CByte, CCur, CDat, CDbl, CInt, CLng, CSng, CStr, and CVar.

        • Automatic data type conversion

          LotusScript® can automatically convert values from one data type to another. Automatic, or implicit data type conversion happens when:

        • Constants and Variables

          A LotusScript® application can manipulate data of several types through the use of constants and variables. Constants andvariables are identifiers that name locations in memory containing data of one or another of the types that LotusScript recognizes. Constants differ from variables in that the value that a constant represents must be known at compile time and can't be changed -- it must remain constant -- while the application is running, while a variable can refer to a value (or a set of values) that can change while the application is running.

        • Scope of declarations

          Scope is the context in which a variable, procedure, class, or type is declared. Scope affects the accessibility of an item's value outside that context. For example, variables declared within a procedure are typically not available outside of the scope of that procedure.

        • Constants in LotusScript®

          A constant names a location in memory that contains a value that is known at compile time and cannot be changed while the application is running. In less formal terms, a constant is a named fixed value. Constants are defined in the following ways:

        • Variables

          A variable names an area of storage whose value can change during execution of an application.

        • Arrays

          An array is a named collection of elements of the same data type, where each element can be accessed individually by its position within the collection. A LotusScript® array can have a maximum of eight dimensions.

        • Lists

          A list is a one-dimensional collection of elements of the same data type. You can change the size of a list at any time while the application is running and LotusScript® does not allocate any storage space at compile time for the elements of a list. Lists automatically shrink or grow when elements are deleted from or added to them. You access each element in a list by a unique String value, called a list tag.

        • Variants

          Variant is a special data type: variables of type Variant can hold values of any of the following data types that LotusScript® recognizes, except for user-defined data types:

      • Expressions and Operators

        This chapter describes the set of LotusScript® operators, how they may be combined with operands to form expressions, and how those expressions are evaluated.

      • Procedures: Functions, Subs, and Properties
      • File Handling

        This chapter describes file handling in the LotusScript® language.

      • Error Processing

        This chapter describes error processing in the LotusScript® language.

      • User-Defined Data Types and Classes

        This chapter describes two kinds of custom data structures that you can define in LotusScript®. Each can hold data of different types in a single data structure.

      • Managing Flow in Scripts

        The flow of execution of a script generally follows the sequence of statements in the script. This chapter describes the behavior of particular statements that alter the flow of execution.

      • Managing Asynchronous Web Agents in Domino®

        This chapter describes how to use multiple threads and synchronization to manage HTTP agents with Domino®.

      • Beyond Core LotusScript®

        This chapter discusses the role that LotusScript® plays with HCL products, your operating environment, other programs, and interactive user applications.

      • LotusScript® Language Reference

        This chapter describes the use of statements, built-in functions, subs, data types, and directives in the LotusScript® language.

      • Language and Script Limits

        This appendix describes LotusScript® language limits of several kinds: for example, the legal ranges in data representation, the limits on numerical specifications within statements, and the maximum number of different kinds of elements that can be defined in a script.

      • Platform Differences

        The LotusScript® language and functionality on the UNIX™ platform, the Macintosh platform, and the IBM i® platform differ in various ways from the language and functionality described in the rest of this language reference. This appendix describes the differences.

      • LotusScript/REXX Integration

        This appendix provides an overview of REXX integration in the LotusScript® language.

      • LotusScript® Aliases

        This appendix lists the LotusScript® aliases and their equivalent text.

      • MIME Charset Names
      • Compile-time Error Messages

        This chapter describes the compile-time error messages in the LotusScript® language.

      • Run-time Error Messages

        This chapter describes the run-time error messages in the LotusScript® language.

    • LotusScript/COM/OLE Classes
    • Java/CORBA Classes

      This section documents the Java/CORBA classes.

    • 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.

Data Types, Constants, and Variables

This chapter provides information about LotusScript® constants and variables and the data types of the values that they can represent.

Summary of LotusScript® data types

Data type conversion

Explicit data type conversion

Automatic data type conversion

Constants and Variables

Scope of declarations

Constants

Variables

Arrays

Lists

Variants

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