orber_tc(3)

MODULE
orber_tc - Help functions for IDL typecodes

DESCRIPTION

This module contains some functions that gives support in creating IDL typecodes that can be used in for example the any types typecode field. For the simple types it is meaningless to use this API but the functions exist to get the interface complete.

The type TC used below describes an IDL type and is a tuple according to the to the Erlang language mapping.

EXPORTS

null() -> TC
void() -> TC
short() -> TC
unsigned_short() -> TC
long() -> TC
unsigned_long() -> TC
float() -> TC
double() -> TC
boolean() -> TC
char() -> TC
octet() -> TC
any() -> TC
typecode() -> TC
principal() -> TC

    These functions return the IDL typecodes for simple types.

object_reference(Id, Name) -> TC

    Types
        Id = string()
          the repository ID
        Name = string()
          the type name of the object

    Function returns the IDL typecode for object_reference.

struct(Id, Name, ElementList) -> TC

    Types
        Id = string()
          the repository ID
        Name = string()
          the type name of the struct
        ElementList = [{MemberName, TC}]
          a list of the struct elements
        MemberName = string()
          the element name

    Function returns the IDL typecode for struct.

union(Id, Name, DiscrTC, Default, ElementList) -> TC

    Types
        Id = string()
          the repository ID
        Name = string()
          the type name of the union
        DiscrTC = TC
          the typecode for the unions discriminant
        Default = integer()
          a value that indicates which tuple in the element list that is default (value < 0 means no default)
        ElementList = [{Label, MemberName, TC}]
          a list of the union elements
        Label = term()
          the label value should be of the DiscrTC type
        MemberName = string()
          the element name

    Function returns the IDL typecode for union.

enum(Id, Name, ElementList) -> TC

    Types
        Id = string()
          the repository ID
        Name = string()
          the type name of the enum
        ElementList = [MemberName]
          a list of the enums elements
        MemberName = string()
          the element name

    Function returns the IDL typecode for enum.

string(Length) -> TC

    Types
        Length = integer()
          the length of the string (0 means unbounded)

    Function returns the IDL typecode for string.

wstring(Length) -> TC

    Types
        Length = integer()
          the length of the wstring (0 means unbounded)

    Function returns the IDL typecode for wstring.

fixed(Digits, Scale) -> TC

    Types
        Digits = Scale = integer()
          the digits and scale parameters of a Fixed type

    Function returns the IDL typecode for fixed.

sequence(ElemTC, Length) -> TC

    Types
        ElemTC = TC
          the typecode for the sequence elements
        Length = integer()
          the length of the sequence (0 means unbounded)

    Function returns the IDL typecode for sequence.

array(ElemTC, Length) -> TC

    Types
        ElemTC = TC
          the typecode for the array elements
        Length = integer()
          the length of the array

    Function returns the IDL typecode for array.

alias(Id, Name, AliasTC) -> TC

    Types
        Id = string()
          the repository ID
        Name = string()
          the type name of the alias
        AliasTC = TC
           the typecode for the type which the alias refer to

    Function returns the IDL typecode for alias.

exception(Id, Name, ElementList) -> TC

    Types
        Id = string()
          the repository ID
        Name = string()
          the type name of the exception
        ElementList = [{MemberName, TC}]
          a list of the exception elements
        MemberName = string()
          the element name

    Function returns the IDL typecode for exception.

get_tc(Object) -> TC
get_tc(Id) -> TC

    Types
        Object = record()
          an IDL specified struct, union or exception
        Id = string()
          the repository ID

    If the get_tc/1 gets a record that is and IDL specified struct, union or exception as a parameter it returns the typecode.

    If the parameter is a repository ID it uses the Interface Repository to get the typecode.

check(TC) -> boolean()

    Function checks the syntax of an IDL typecode.

AUTHOR
Support - support@erlang.ericsson.se