WritableResource

getOutputStream

Return an OutputStream for the underlying resource, allowing to (over-)write its content.

isWritable

Indicate whether the contents of this resource can be written via #getOutputStream().

Will be true for typical resource descriptors; note that actual content writing may still fail when attempted. However, a value of false is a definitive indication that the resource content cannot be modified.

writableChannel

Return a WritableByteChannel.

It is expected that each call creates a fresh channel.

The default implementation returns Channels#newChannel(OutputStream) with the result of #getOutputStream().

FileUrlResource

Subclass of UrlResource which assumes file resolution, to the degree of implementing the WritableResource interface for it.

This is the class resolved by DefaultResourceLoader for a "file:..." URL location, allowing a downcast to WritableResource for it.

Alternatively, for direct construction from a java.io.File handle, consider using FileSystemResource. For an NIO java.nio.file.Path, consider using PathResource instead.

PathResource

Resource implementation for java.nio.file.Path handles. Supports resolution as File, and also as URL. Implements the extended WritableResource interface.