ExpressionJsonRef class sealed

Base class for JSON expressions reference a property or index in a JsonValue.

Inheritance

• Object
• Expr<JsonValue?>
• SingleValueExpr<JsonValue?>
• ExpressionJsonRef

Implementers

• ExpressionJsonRefIndex
• ExpressionJsonRefKey
• ExpressionJsonRefRoot

Available extensions

• ExpressionJsonValue
• ExpressionNull
• ExpressionNullableJsonValue

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

asBlob() → Expr<Uint8List?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<Uint8List?> using CAST(NULL AS BLOB).

asBool() → Expr<bool?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<bool?> using CAST(NULL AS BOOLEAN).

asBool() → Expr<bool?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Extract the value as unquoted text and cast it to a boolean.

asDateTime() → Expr<DateTime?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<DateTime?> using CAST(NULL AS TIMESTAMP).

asDouble() → Expr<double?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<double?> using CAST(NULL AS DOUBLE PRECISION).

asDouble() → Expr<double?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Extract the value as unquoted text and cast it to a double.

asInt() → Expr<int?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<int?> using CAST(NULL AS BIGINT).

asInt() → Expr<int?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Extract the value as unquoted text and cast it to an integer.

asJsonValue() → Expr<JsonValue?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<JsonValue?> using CAST(NULL AS JSONB).

asString() → Expr<String?>

Available on Expr<Null>, provided by the ExpressionNull extension

Cast as Expr<String?> using CAST(NULL AS TEXT).

asString() → Expr<String?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Extract the value as unquoted text.

elementAt(int index) → Expr<JsonValue?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Access an index in this JSON value.

field(String key) → Expr<JsonValue?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Access a key in this JSON value.

isNotNull() → Expr<bool>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Check if this expression is not NULL.

isNull() → Expr<bool>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Check if this expression is NULL.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

orElse(Expr<JsonValue> value) → Expr<JsonValue>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

If this expression is NULL, use value instead.

orElseValue(JsonValue value) → Expr<JsonValue>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

If this expression is NULL, use value instead.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

operator [](Object keyOrIndex) → Expr<JsonValue?>

Available on Expr<JsonValue?>, provided by the ExpressionNullableJsonValue extension

Access a key or index in this JSON value.