Xema.Schema (xema v0.13.6) View Source
This module contains the struct for the keywords of a schema.
Link to this section Summary
Functions
Fetches a subschema from the schema
by the given pointer
.
Fetches a subschema from the schema
by the given pointer
.
Returns all keywords in a list.
Returns a %Schema{}
for the given keywords
in the keyword list.
Returns the %Schema{}
as a map. Items which a nil
value are not in the
map.
Returns all available type
s in a list.
Link to this section Types
Specs
t() :: %Xema.Schema{ additional_items: Xema.Behaviour.t() | t() | boolean() | nil, additional_properties: map() | boolean() | nil, all_of: [t()] | nil, any_of: [t()] | nil, caster: function() | module() | {module(), atom()} | {module(), atom(), arity()} | list() | nil, comment: String.t() | nil, const: any(), contains: Xema.Behaviour.t() | t() | nil, content_encoding: String.t() | nil, content_media_type: String.t() | nil, data: map() | nil, default: any(), definitions: map() | nil, dependencies: list() | map() | nil, description: String.t() | nil, else: Xema.Behaviour.t() | t() | nil, enum: list() | nil, examples: [any()] | nil, exclusive_maximum: boolean() | number() | nil, exclusive_minimum: boolean() | number() | nil, format: atom() | nil, id: String.t() | nil, if: Xema.Behaviour.t() | t() | nil, items: list() | Xema.Behaviour.t() | t() | nil, keys: atom() | nil, max_items: pos_integer() | nil, max_length: pos_integer() | nil, max_properties: pos_integer() | nil, maximum: number() | nil, min_items: pos_integer() | nil, min_length: pos_integer() | nil, min_properties: pos_integer() | nil, minimum: number() | nil, module: atom() | nil, multiple_of: number() | nil, not: t() | nil, one_of: [t()] | nil, pattern: Regex.t() | nil, pattern_properties: map() | nil, properties: map() | nil, property_names: Xema.Behaviour.t() | t() | nil, ref: Xema.Ref.t() | nil, required: MapSet.t() | nil, schema: String.t() | nil, then: Xema.Behaviour.t() | t() | nil, title: String.t() | nil, type: type() | [type()], unique_items: boolean() | nil, validator: function() | module() | {module(), atom()} | {module(), atom(), arity()} | list() | nil }
The struct contains the keywords for a schema.
additional_items
disallow additional items, if set to false. The keyword can also contain a schema to specify the type of additional items.additional_properties
disallow additional properties, if set to true.- 'all_of' a list of schemas they must all be valid.
- 'any_of' a list of schemas with any valid schema.
caster
a custom caster. This can be a function, a tuple with module and function name, or aXema.Caster
behaviour.comment
for the schema.const
specifies a constant.content_encoding
annotation for the encoding.content_media_type
annotation for the media type.contains
validates a list whether any item is valid for the given schema.data
none schema data.default
this keyword can be used to supply a default JSON value.definitions
contains schemas for reuse.dependencies
allows the schema of the map to change based on the presence of certain special propertiesdescription
of the schema.else
seeif
,then
,else
.enum
specifies an enumerationexamples
the value of this keyword must be an array. There are no restrictions placed on the values within the array.exclusive_maximum
is a boolean. When true, it indicates that the range excludes the maximum value.exclusive_minimum
is a boolean. When true, it indicates that the range excludes the minimum value.format
semantic validation.id
a unique identifier.if
,then
,else
: These keywords work together to implement conditional application of a subschema based on the outcome of another subschema.items
specifies the type(s) of the items.keys
could be:atoms
or:strings
.max_items
the maximum length of list.max_length
the maximum length of string.max_properties
the maximum count of properties for the map.maximum
the maximum value.min_items
the minimal length of list.min_length
the minimal length of string.min_properties
the minimal count of properties for the map.minimum
the minimum value.module
the module of a struct.multiple_of
is a number greater 0. The value has to be a multiple of this number.not
negates the given schemaone_of
the given data must be valid against exactly one of the given subschemas.pattern_properties
specifies schemas for properties by patternspattern
restrict a string to a particular regular expression.properties
specifies schemas for properties.property_names
a schema to check property names.ref
a reference to a schema.required
contains a set of required properties.schema
declares the used schema.title
of the schema.then
seeif
,then
,else
type
specifies the data type for a schema.unique_items
disallow duplicate items, if set to true.validator
a custom validator. This can be a function, a tuple with module and function name, or aXema.Validator
behaviour.
Specs
type() :: :any | :atom | :boolean | false | :float | :integer | :keyword | :list | :map | nil | :number | :string | :struct | true | :tuple
The type
for the schema.
Specs
xema() :: struct()
Link to this section Functions
Specs
fetch(t(), Xema.Ref.t() | String.t()) :: {:ok, t()} | :error
Fetches a subschema from the schema
by the given pointer
.
If schema
contains the given pointer with a subschema, then {:ok, schema}
is returned otherwise :error
.
Specs
fetch!(t(), Xema.Ref.t() | String.t()) :: t()
Fetches a subschema from the schema
by the given pointer
.
If schema
contains the given pointer with a subschema, then {:ok, schema}
is returned otherwise a SchemaError
is raised.
Specs
keywords() :: [atom()]
Returns all keywords in a list.
The key :data
is not a regular keyword and is not in the list.
Specs
Returns a %Schema{}
for the given keywords
in the keyword list.
Specs
Returns the %Schema{}
as a map. Items which a nil
value are not in the
map.
Specs
types() :: [type()]
Returns all available type
s in a list.