ArrayNode class final

A JSON array: an ordered list of child nodes, which can be changed in place.

Inheritance

• Object
• JsonNode
• ArrayNode

Constructors

ArrayNode([List<JsonNode>? elements])

An array of elements; empty by default.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isArray → bool

Whether this is an ArrayNode.

no setter, override

isBoolean → bool

Whether this is a BooleanNode.

no setter, inherited

isContainer → bool

Whether this is an object or an array.

no setter, inherited

isEmpty → bool

Whether the object or array has no children (true for other nodes).

no setter, inherited

isIntegralNumber → bool

Whether this is a number without a fraction.

no setter, inherited

isMissingNode → bool

Whether this is the MissingNode.

no setter, inherited

isNull → bool

Whether this is the NullNode.

no setter, inherited

isNumber → bool

Whether this is a NumericNode.

no setter, inherited

isObject → bool

Whether this is an ObjectNode.

no setter, inherited

isString → bool

Whether this is a StringNode.

no setter, inherited

isValueNode → bool

Whether this is a string, number, boolean or null.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

size → int

The number of properties of an object or elements of an array; 0 for other nodes.

no setter, override

Methods

add(Object? value) → ArrayNode

Appends value, decoded JSON or a JsonNode, and returns this array.

addArray() → ArrayNode

Appends an empty array and returns it.

addObject() → ObjectNode

Appends an empty object and returns it.

asBoolean([bool? defaultValue]) → bool

The value as a bool: a boolean, "true" / "false", a number (not 0), false for null and a missing node; anything else gives defaultValue, or throws a JsonNodeException without one.

inherited

asDouble([double? defaultValue]) → double

The value as a double, converted like asInt (a string may be any number, "1.5").

inherited

asInt([int? defaultValue]) → int

The value as an int (Jackson 3): a finite number (truncated), a string of an integer ("42"), a boolean (1 / 0), 0 for null and a missing node. Anything else gives defaultValue, or throws a JsonNodeException without one; null and a missing node give defaultValue when there is one.

inherited

asString([String? defaultValue]) → String

The value as a string (Jackson 3): the text of a string, number or boolean, '' for null and a missing node. An object or array gives defaultValue, or throws a JsonNodeException without one; null and a missing node give defaultValue when there is one.

inherited

at(String pointer) → JsonNode

Returns the node at the JSON Pointer pointer (/book/tags/0; ~1 stands for /, ~0 for ~), or a MissingNode when there is none. An empty pointer gives this node; one not starting with / throws an ArgumentError.

inherited

booleanValue() → bool

Returns the value of a BooleanNode; throws a JsonNodeException for other nodes.

inherited

deepCopy() → JsonNode

Returns a copy that shares no objects or arrays with this node, so it can be changed independently.

inherited

doubleValue() → double

Returns the value of a NumericNode as a double; throws a JsonNodeException for other nodes.

inherited

get(Object nameOrIndex) → JsonNode?

The property nameOrIndex of an object, or the element at index nameOrIndex of an array; null when there is none.

override

has(Object nameOrIndex) → bool

Whether get finds a node for nameOrIndex.

inherited

insert(int index, Object? value) → ArrayNode

Inserts value at index and returns this array.

intValue() → int

The value of a NumericNode as an int, when it is one exactly; throws a JsonNodeException for a fraction (1.5), NaN, infinity and other nodes.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

numberValue() → num

Returns the value of a NumericNode; throws a JsonNodeException for other nodes.

inherited

path(Object nameOrIndex) → JsonNode

Like get, but a MissingNode instead of null, so paths can be chained: root.path('a').path('b').

inherited

properties() → Iterable<MapEntry<String, JsonNode>>

The properties of an object as name/node entries, in order; empty for other nodes.

inherited

propertyNames() → Iterable<String>

The property names of an object, in order; empty for other nodes.

inherited

remove(int index) → JsonNode

Removes the element at index and returns it.

set(int index, Object? value) → JsonNode

Replaces the element at index with value and returns the old one.

stringValue() → String

Returns the text of a StringNode; throws a JsonNodeException for other nodes. Use asString to convert instead.

inherited

toJson() → List<Object?>

Returns this node as plain decoded JSON: null, a bool, number, string, list or map, as jsonEncode takes it (MissingNode gives null).

override

toPrettyString() → String

This node as JSON text indented by two spaces, for people to read.

inherited

toString() → String

This node as compact JSON text.

inherited

values() → Iterable<JsonNode>

The elements of an array or the property values of an object; empty for other nodes.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited