vapi metadata metamodel: type

The type structure describes the type information of a typed element in the interface definiton language. The following elements in the metamodel are typed: The type could be one of the three following categories:
  • Built-in types: These are types present in the interface definition language type system. They are provided by the infrastructure.
  • User defined named type: API designers can create custom types and use them for the typed elements. These types have a unique identifier.
  • Generic type instantiation: The language infrastructure also provides generic types such as list, map, set and so on. An instantiation of one of these generic types could also be used for the typed elements.

Representation:

{
    "builtin_type""VOID",
    "user_defined_type"{
        "resource_type""string",
        "resource_id""obj-103"
    },
    "category""BUILTIN",
    "generic_instantiation"{
        "generic_type""LIST",
        "element_type"{
            "builtin_type""VOID",
            "user_defined_type"{
                "resource_type""string",
                "resource_id""obj-103"
            },
            "category""BUILTIN",
            "generic_instantiation"{
                "generic_type""LIST"
            }
        }
    }
}

Attributes:

Name Type Description
Required
category string Category of this type.

Provides enumeration value for each category of the type. Value is one of:
BUILTIN: The type is one of the built-in types specified in vapi.metadata.metamodel.type.builtin_type
USER_DEFINED: The type is one of the user defined named types.
GENERIC: The type is an instantiation of one of the generic types.

user_defined_type.resource_type string Category of the user defined named type. The named type could be a structure element or an enumeration element.

When clients pass a value of this structure as a parameter, the field must be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration.

user_defined_type.resource_id string Identifier of the user defined named type.

When clients pass a value of this structure as a parameter, the field must be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration.

generic_instantiation.generic_type string The generic type that is being instantiated.

Provides enumeration values for each of the generic types provided by the infrastructure. Value is one of:
LIST: Indicates the generic type is a list.
MAP: Indicates the generic type is a map.
OPTIONAL: Indicates the generic type is an optional.
SET: Indicates the generic type is a set.

generic_instantiation.element_type.category string Category of this type.

Provides enumeration value for each category of the type. Value is one of:
BUILTIN: The type is one of the built-in types specified in vapi.metadata.metamodel.type.builtin_type
USER_DEFINED: The type is one of the user defined named types.
GENERIC: The type is an instantiation of one of the generic types.

generic_instantiation.element_type.user_defined_type.resource_type string Category of the user defined named type. The named type could be a structure element or an enumeration element.

When clients pass a value of this structure as a parameter, the field must be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration.

generic_instantiation.element_type.user_defined_type.resource_id string Identifier of the user defined named type.

When clients pass a value of this structure as a parameter, the field must be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration.

generic_instantiation.map_key_type.category string Category of this type.

Provides enumeration value for each category of the type. Value is one of:
BUILTIN: The type is one of the built-in types specified in vapi.metadata.metamodel.type.builtin_type
USER_DEFINED: The type is one of the user defined named types.
GENERIC: The type is an instantiation of one of the generic types.

generic_instantiation.map_key_type.user_defined_type.resource_type string Category of the user defined named type. The named type could be a structure element or an enumeration element.

When clients pass a value of this structure as a parameter, the field must be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration.

generic_instantiation.map_key_type.user_defined_type.resource_id string Identifier of the user defined named type.

When clients pass a value of this structure as a parameter, the field must be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration.

generic_instantiation.map_value_type.category string Category of this type.

Provides enumeration value for each category of the type. Value is one of:
BUILTIN: The type is one of the built-in types specified in vapi.metadata.metamodel.type.builtin_type
USER_DEFINED: The type is one of the user defined named types.
GENERIC: The type is an instantiation of one of the generic types.

generic_instantiation.map_value_type.user_defined_type.resource_type string Category of the user defined named type. The named type could be a structure element or an enumeration element.

When clients pass a value of this structure as a parameter, the field must be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be one of com.vmware.vapi.structure or com.vmware.vapi.enumeration.

generic_instantiation.map_value_type.user_defined_type.resource_id string Identifier of the user defined named type.

When clients pass a value of this structure as a parameter, the field must be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration. When operations return a value of this structure as a result, the field will be an identifier for one of these resource types: com.vmware.vapi.structure or com.vmware.vapi.enumeration.

Optional
builtin_type string Category of the built-in type.

Provides enumeration value for each of the built-in types present in the interface definition language type system. Value is one of:
VOID: The built-in type is a void. The value is unset.
BOOLEAN: The built-in type is a boolean. The value is true or false.
LONG: The built-in type is a long. The value is a 64 bit signed integer.
DOUBLE: The built-in type is a double. The value is a 64 bit floating point number.
STRING: The built-in type is a string. The value is a variable-length sequence of zero or more unicode characters.
BINARY: The built-in type is a binary. The value is a variable-length sequence of zero or more bytes.
SECRET: The built-in type is a secret. The value is a variable-length sequence of zero or more unicode characters. The value contains sensitive data that should not be printed or displayed anywhere.
DATE_TIME: The built-in type is a datetime. The value should be in the UTC timezone and the precision is milliseconds.
ID: The built-in type is an ID. The value represents an identifier for a resource.
URI: The built-in type is an URI. The value follows the IRI specification in RFC 3987.
ANY_ERROR: The built-in type is an arbitrary error type. This is used if the value of a typed element can be one of any user defined named type which is an error.
DYNAMIC_STRUCTURE: The built-in type is a dynamic structure. This is used if the value of a typed element can be one of any user defined named type.
OPAQUE: The built-in type is an opaque. This is used if the value of a typed element could be of any type and the actual type will be known only during the execution of the API. This is mostly used in infrastructure services.Optional. It is only relevant when category has value BUILTIN. This field is optional and it is only relevant when the value of category is BUILTIN.

user_defined_type user_defined_type Identifier and type of the user defined type.

Optional. It is only relevant when category has value USER_DEFINED. This field is optional and it is only relevant when the value of category is USER_DEFINED.

generic_instantiation generic_instantiation Instantiation of one of the generic types available in the interface definition language.

Optional. It is only relevant when category has value GENERIC. This field is optional and it is only relevant when the value of category is GENERIC.

generic_instantiation.element_type type Type of the element parameter if the generic type instantiation is a LIST, OPTIONAL or SET.

Optional. It is only relevant when generic_type has value [LIST, OPTIONAL, SET]. This field is optional and it is only relevant when the value of generic_type is one of LIST, OPTIONAL, or SET.

generic_instantiation.element_type.builtin_type string Category of the built-in type.

Provides enumeration value for each of the built-in types present in the interface definition language type system. Value is one of:
VOID: The built-in type is a void. The value is unset.
BOOLEAN: The built-in type is a boolean. The value is true or false.
LONG: The built-in type is a long. The value is a 64 bit signed integer.
DOUBLE: The built-in type is a double. The value is a 64 bit floating point number.
STRING: The built-in type is a string. The value is a variable-length sequence of zero or more unicode characters.
BINARY: The built-in type is a binary. The value is a variable-length sequence of zero or more bytes.
SECRET: The built-in type is a secret. The value is a variable-length sequence of zero or more unicode characters. The value contains sensitive data that should not be printed or displayed anywhere.
DATE_TIME: The built-in type is a datetime. The value should be in the UTC timezone and the precision is milliseconds.
ID: The built-in type is an ID. The value represents an identifier for a resource.
URI: The built-in type is an URI. The value follows the IRI specification in RFC 3987.
ANY_ERROR: The built-in type is an arbitrary error type. This is used if the value of a typed element can be one of any user defined named type which is an error.
DYNAMIC_STRUCTURE: The built-in type is a dynamic structure. This is used if the value of a typed element can be one of any user defined named type.
OPAQUE: The built-in type is an opaque. This is used if the value of a typed element could be of any type and the actual type will be known only during the execution of the API. This is mostly used in infrastructure services.Optional. It is only relevant when category has value BUILTIN. This field is optional and it is only relevant when the value of category is BUILTIN.

generic_instantiation.element_type.user_defined_type user_defined_type Identifier and type of the user defined type.

Optional. It is only relevant when category has value USER_DEFINED. This field is optional and it is only relevant when the value of category is USER_DEFINED.

generic_instantiation.element_type.generic_instantiation generic_instantiation Instantiation of one of the generic types available in the interface definition language.

Optional. It is only relevant when category has value GENERIC. This field is optional and it is only relevant when the value of category is GENERIC.

generic_instantiation.map_key_type type Type of the key parameter of the map generic type instantiation. The map generic type has a key parameter and value parameter. The type of the value parameter is described by vapi.metadata.metamodel.generic_instantiation.map_value_type..

Optional. It is only relevant when generic_type has value MAP. This field is optional and it is only relevant when the value of generic_type is MAP.

generic_instantiation.map_key_type.builtin_type string Category of the built-in type.

Provides enumeration value for each of the built-in types present in the interface definition language type system. Value is one of:
VOID: The built-in type is a void. The value is unset.
BOOLEAN: The built-in type is a boolean. The value is true or false.
LONG: The built-in type is a long. The value is a 64 bit signed integer.
DOUBLE: The built-in type is a double. The value is a 64 bit floating point number.
STRING: The built-in type is a string. The value is a variable-length sequence of zero or more unicode characters.
BINARY: The built-in type is a binary. The value is a variable-length sequence of zero or more bytes.
SECRET: The built-in type is a secret. The value is a variable-length sequence of zero or more unicode characters. The value contains sensitive data that should not be printed or displayed anywhere.
DATE_TIME: The built-in type is a datetime. The value should be in the UTC timezone and the precision is milliseconds.
ID: The built-in type is an ID. The value represents an identifier for a resource.
URI: The built-in type is an URI. The value follows the IRI specification in RFC 3987.
ANY_ERROR: The built-in type is an arbitrary error type. This is used if the value of a typed element can be one of any user defined named type which is an error.
DYNAMIC_STRUCTURE: The built-in type is a dynamic structure. This is used if the value of a typed element can be one of any user defined named type.
OPAQUE: The built-in type is an opaque. This is used if the value of a typed element could be of any type and the actual type will be known only during the execution of the API. This is mostly used in infrastructure services.Optional. It is only relevant when category has value BUILTIN. This field is optional and it is only relevant when the value of category is BUILTIN.

generic_instantiation.map_key_type.user_defined_type user_defined_type Identifier and type of the user defined type.

Optional. It is only relevant when category has value USER_DEFINED. This field is optional and it is only relevant when the value of category is USER_DEFINED.

generic_instantiation.map_key_type.generic_instantiation generic_instantiation Instantiation of one of the generic types available in the interface definition language.

Optional. It is only relevant when category has value GENERIC. This field is optional and it is only relevant when the value of category is GENERIC.

generic_instantiation.map_value_type type Type of the value parameter of the map generic type instantiation. The map generic type has a key parameter and value parameter. The type of the key parameter is described by vapi.metadata.metamodel.generic_instantiation.map_key_type..

Optional. It is only relevant when generic_type has value MAP. This field is optional and it is only relevant when the value of generic_type is MAP.

generic_instantiation.map_value_type.builtin_type string Category of the built-in type.

Provides enumeration value for each of the built-in types present in the interface definition language type system. Value is one of:
VOID: The built-in type is a void. The value is unset.
BOOLEAN: The built-in type is a boolean. The value is true or false.
LONG: The built-in type is a long. The value is a 64 bit signed integer.
DOUBLE: The built-in type is a double. The value is a 64 bit floating point number.
STRING: The built-in type is a string. The value is a variable-length sequence of zero or more unicode characters.
BINARY: The built-in type is a binary. The value is a variable-length sequence of zero or more bytes.
SECRET: The built-in type is a secret. The value is a variable-length sequence of zero or more unicode characters. The value contains sensitive data that should not be printed or displayed anywhere.
DATE_TIME: The built-in type is a datetime. The value should be in the UTC timezone and the precision is milliseconds.
ID: The built-in type is an ID. The value represents an identifier for a resource.
URI: The built-in type is an URI. The value follows the IRI specification in RFC 3987.
ANY_ERROR: The built-in type is an arbitrary error type. This is used if the value of a typed element can be one of any user defined named type which is an error.
DYNAMIC_STRUCTURE: The built-in type is a dynamic structure. This is used if the value of a typed element can be one of any user defined named type.
OPAQUE: The built-in type is an opaque. This is used if the value of a typed element could be of any type and the actual type will be known only during the execution of the API. This is mostly used in infrastructure services.Optional. It is only relevant when category has value BUILTIN. This field is optional and it is only relevant when the value of category is BUILTIN.

generic_instantiation.map_value_type.user_defined_type user_defined_type Identifier and type of the user defined type.

Optional. It is only relevant when category has value USER_DEFINED. This field is optional and it is only relevant when the value of category is USER_DEFINED.

generic_instantiation.map_value_type.generic_instantiation generic_instantiation Instantiation of one of the generic types available in the interface definition language.

Optional. It is only relevant when category has value GENERIC. This field is optional and it is only relevant when the value of category is GENERIC.