{title:'JSON-Schema Support'}

Juneau provides the {@link oaj.json.JsonSchemaSerializer} class for generating JSON-Schema documents that describe the output generated by the {@link oaj.json.JsonSerializer} class. This class shares the same properties as JsonSerializer. For convenience the {@link oaj.json.JsonSerializer#getSchemaSerializer()} method has been added for creating instances of schema serializers from the regular serializer instance.

##### Sample Beans

| public class Person { | | // Bean properties | public String name; | public Calendar birthDate; | public List<Address> addresses; | | // Getters/setters omitted | } | | public class Address { | | // Bean properties | public String street, city; | public StateEnum state; | public int zip; | public boolean isCurrent; | | // Getters/setters omitted | }

The code for creating our POJO model and generating JSON-Schema is shown below:

| // Get the one of the default schema serializers. | JsonSchemaSerializer serializer = JsonSchemaSerializer. DEFAULT_SIMPLE_READABLE; | | // Get the JSON Schema for the POJO. | String jsonSchema = serializer.serialize(new Person()); | | // This also works. | jsonSchema = serializer.serialize(Person. class);

##### JSON Schema

| { | type: 'object', | description: 'org.apache.juneau.sample.Person', | properties: { | name: { | type: 'string', | description: 'java.lang.String' | }, | birthDate: { | type: 'string', | description: 'java.util.Calendar' | }, | addresses: { | type: 'array', | description: 'java.util.LinkedList<org.apache.juneau.sample.Address>', | items: { | type: 'object', | description: 'org.apache.juneau.sample.Address', | properties: { | street: { | type: 'string', | description: 'java.lang.String' | }, | city: { | type: 'string', | description: 'java.lang.String' | }, | state: { | type: 'string', | description: 'java.lang.String' | }, | zip: { | type: 'number', | description: 'int' | }, | isCurrent: { | type: 'boolean', | description: 'boolean' | } | } | } | } | } | }