InputStreamSource

org.springframework.core.io.InputStreamSource

Known Indirect Subclasses

AbstractFileResolvingResource, AbstractResource, ByteArrayResource, ClassPathResource, ContextResource, DescriptiveResource, FileSystemResource, InputStreamResource, PortletContextResource, Resource, ServletContextResource, UrlResource, VfsResource

AbstractFileResolvingResource	Abstract base class for resources which resolve URLs into File references, such as `UrlResource` or `ClassPathResource`.
AbstractResource	Convenience base class for `Resource` implementations, pre-implementing typical behavior.
ByteArrayResource	`Resource` implementation for a given byte array.
ClassPathResource	`Resource` implementation for class path resources.
ContextResource	Extended interface for a resource that is loaded from an enclosing 'context', e.g.
DescriptiveResource	Simple `Resource` implementation that holds a resource description but does not point to an actually readable resource.
FileSystemResource	`Resource` implementation for `java.io.File` handles.
InputStreamResource	`Resource` implementation for a given InputStream.
PortletContextResource	`Resource` implementation for javax.portlet.PortletContext resources, interpreting relative paths within the portlet application root directory.
Resource	Interface for a resource descriptor that abstracts from the actual type of underlying resource, such as a file or class path resource.
ServletContextResource	`Resource` implementation for javax.servlet.ServletContext resources, interpreting relative paths within the web application root directory.
UrlResource	`Resource` implementation for `java.net.URL` locators.
VfsResource	VFS based `Resource` implementation.

Class Overview

Simple interface for objects that are sources for an InputStream.

This is the base interface for Spring's more extensive Resource interface.

For single-use streams, InputStreamResource can be used for any given InputStream. Spring's ByteArrayResource or any file-based Resource implementation can be used as a concrete instance, allowing one to read the underlying content stream multiple times. This makes this interface useful as an abstract content source for mail attachments, for example.

Summary

Public Methods
abstract InputStream	getInputStream() Return an `InputStream`.

Public Methods

public abstract InputStream getInputStream ()

Also: SpringCore

Return an InputStream.

It is expected that each call creates a fresh stream.

This requirement is particularly important when you consider an API such as JavaMail, which needs to be able to read the stream multiple times when creating mail attachments. For such a use case, it is required that each getInputStream() call returns a fresh stream.

Throws

IOException	if the stream could not be opened

Interfaces

Classes