DataType is a meta-schema for defining basic data types (like Text, Number, Boolean) and their validation rules. Unlike regular schemas that define properties, DataTypes define validation constraints for atomic values.
Schema URL: https://rustybeam.net/schema/DataType
| Property | Type | Cardinality | Description |
|---|---|---|---|
| id | https://rustybeam.net/schema/URL | 1 | The URL identifier for this data type |
| name | https://rustybeam.net/schema/Text | 1 | The name of the data type |
| baseType | https://rustybeam.net/schema/Text | 1 | The fundamental type (text, number, boolean, datetime, url) |
| validationPattern | https://rustybeam.net/schema/Text | 0..1 | Regular expression for validating values of this type |
| constraints | https://rustybeam.net/schema/Text | 0..n | Additional validation constraints (JSON format) |
| description | https://rustybeam.net/schema/Text | 0..1 | Human-readable description of the data type |
DataType documents define atomic data types that can be referenced in Property definitions. When a Property's type references a DataType URL, validation software should apply the DataType's validation rules to the property's value.
Note: DataTypes are fundamentally different from Schemas. While Schemas define structured objects with properties, DataTypes define validation rules for single values.
<body itemscope itemtype="https://rustybeam.net/schema/DataType">
<meta itemprop="id" content="https://rustybeam.net/schema/Email">
<meta itemprop="name" content="Email">
<meta itemprop="baseType" content="text">
<meta itemprop="validationPattern" content="^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$">
<meta itemprop="description" content="RFC 5322 compliant email address">
...
</body>