LazyResource class

Wraps a Resource which will be created only when first accessing one of its members.

Inheritance

Constructors

LazyResource(Future<Resource> factory())

Properties

factory Future<Resource> Function()
final
file File?
Direct file to this resource, when available.
no setterinherited
hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

cached() Resource
Creates a cached resource wrapping this resource.
inherited
close() Future<void>
Closes any opened file handles.
override
length() Future<ResourceTry<int>>
Returns data length from metadata if available, or calculated from reading the bytes otherwise.
override
Returns the link from which the resource was retrieved.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
read({IntRange? range}) Future<ResourceTry<ByteData>>
Reads the bytes at the given range.
override
readAsJson() Future<ResourceTry<Map<String, dynamic>>>
Reads the full content as a JSON object.
inherited
readAsString({String? charset}) Future<ResourceTry<String>>
Reads the full content as a String.
inherited
readAsXml() Future<ResourceTry<XmlDocument>>
Reads the full content as an XML document.
inherited
toString() String
A string representation of this object.
override
use<R>(Future<R> block(Resource resource)) Future<R>
Executes the given block function on this resource and then closes it down correctly whether an exception is thrown or not.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited