javax.json

Interface JsonValue

All Known Subinterfaces:

JsonArray, JsonNumber, JsonObject, JsonString, JsonStructure

public interface JsonValue

JsonValue represents an immutable JSON value.

A JSON value is one of the following: an object (JsonObject), an array (JsonArray), a number (JsonNumber), a string (JsonString), true (JsonValue.TRUE), false (JsonValue.FALSE), or null (JsonValue.NULL).

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	JsonValue.ValueType Indicates the type of a JsonValue object.

Field Summary

Fields

Modifier and Type	Field and Description
static JsonArray	EMPTY_JSON_ARRAY The empty JSON array.
static JsonObject	EMPTY_JSON_OBJECT The empty JSON object.
static JsonValue	FALSE JSON false value.
static JsonValue	NULL JSON null value.
static JsonValue	TRUE JSON true value.

Method Summary

Modifier and Type	Method and Description
default JsonArray	asJsonArray() Return the JsonValue as a JsonArray
default JsonObject	asJsonObject() Return the JsonValue as a JsonObject
JsonValue.ValueType	getValueType() Returns the value type of this JSON value.
String	toString() Returns JSON text for this JSON value.

Field Detail

EMPTY_JSON_OBJECT

static final JsonObject EMPTY_JSON_OBJECT

The empty JSON object.

Since:

1.1

EMPTY_JSON_ARRAY

static final JsonArray EMPTY_JSON_ARRAY

The empty JSON array.

Since:

1.1

NULL

static final JsonValue NULL

JSON null value.

TRUE

static final JsonValue TRUE

JSON true value.

FALSE

static final JsonValue FALSE

JSON false value.

Method Detail

getValueType

JsonValue.ValueType getValueType()

Returns the value type of this JSON value.

Returns:

JSON value type

asJsonObject

default JsonObject asJsonObject()

Return the JsonValue as a JsonObject

Returns:

the JsonValue as a JsonObject

Throws:

ClassCastException - if the JsonValue is not a JsonObject

Since:

1.1

asJsonArray

default JsonArray asJsonArray()

Return the JsonValue as a JsonArray

Returns:

the JsonValue as a JsonArray

Throws:

ClassCastException - if the JsonValue is not a JsonArray

Since:

1.1

toString

String toString()

Returns JSON text for this JSON value.

Overrides:

toString in class Object

Returns:

JSON text