com.facebook.presto.jdbc.internal.jackson.databind.jsonschema.JsonSerializableSchema Maven / Gradle / Ivy
package com.facebook.presto.jdbc.internal.jackson.databind.jsonschema;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Retention;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
import com.facebook.presto.jdbc.internal.jackson.annotation.JacksonAnnotation;
/**
* Annotation that can be used to define JSON Schema definition for
* the annotated class.
*
* Note that annotation is often not needed: for example, regular
* Jackson beans that Jackson can introspect can be used without
* annotations, to produce JSON schema definition.
*
* @author Ryan Heaton
* @author Tatu Saloranta
*/
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotation
public @interface JsonSerializableSchema
{
/**
* Marker value used to indicate that property has "no value";
* needed because annotations cannot have null as default
* value.
*/
public final static String NO_VALUE = "##irrelevant";
/**
* Property that can be used to indicate id of the type when
* generating JSON Schema; empty String indicates that no id
* is defined.
*/
public String id() default "";
/**
* The schema type for this JsonSerializable instance.
* Possible values: "string", "number", "boolean", "object", "array", "null", "any"
*
* @return The schema type for this JsonSerializable instance.
*/
public String schemaType() default "any";
/**
* If the schema type is "object", JSON definition of properties of the object as
* a String.
*
* @return The node representing the schema properties, or "##irrelevant" if irrelevant.
*
* @deprecated (since 2.1) -- support will be dropped in future, since JSON-as-String is
* fundamentally bad way for customizing anything. No direct replacements offered.
*/
@Deprecated
public String schemaObjectPropertiesDefinition() default NO_VALUE;
/**
* If the schema type if "array", JSON definition of the schema for item types contained.
*
* @return The schema for the items in the array, or "##irrelevant" if irrelevant.
*
* @deprecated (since 2.1) -- support will be dropped in future, since JSON-as-String is
* fundamentally bad way for customizing anything. No direct replacements offered.
*/
@Deprecated
public String schemaItemDefinition() default NO_VALUE;
}