Spring Framework

org.springframework.core.io
Interface ResourceLoader

All Known Subinterfaces:
ApplicationContext, ConfigurableApplicationContext, ConfigurablePortletApplicationContext, ConfigurableWebApplicationContext, ResourcePatternResolver, WebApplicationContext
All Known Implementing Classes:
AbstractApplicationContext, AbstractRefreshableApplicationContext, AbstractRefreshableConfigApplicationContext, AbstractRefreshablePortletApplicationContext, AbstractRefreshableWebApplicationContext, AbstractXmlApplicationContext, AnnotationConfigApplicationContext, AnnotationConfigWebApplicationContext, ClassPathXmlApplicationContext, ClassRelativeResourceLoader, DefaultResourceLoader, FileSystemResourceLoader, FileSystemXmlApplicationContext, GenericApplicationContext, GenericWebApplicationContext, GenericXmlApplicationContext, PathMatchingResourcePatternResolver, PortletContextResourceLoader, PortletContextResourcePatternResolver, ResourceAdapterApplicationContext, ServletContextResourceLoader, ServletContextResourcePatternResolver, StaticApplicationContext, StaticPortletApplicationContext, StaticWebApplicationContext, XmlPortletApplicationContext, XmlWebApplicationContext

public interface ResourceLoader

Strategy interface for loading resources (e.. class path or file system resources). An ApplicationContext is required to provide this functionality, plus extended ResourcePatternResolver support.

DefaultResourceLoader is a standalone implementation that is usable outside an ApplicationContext, also used by ResourceEditor.

Bean properties of type Resource and Resource array can be populated from Strings when running in an ApplicationContext, using the particular context's resource loading strategy.

Since:
10.03.2004
Author:
Juergen Hoeller
See Also:
Resource, ResourcePatternResolver, ApplicationContext, ResourceLoaderAware

Field Summary
static java.lang.String CLASSPATH_URL_PREFIX
          Pseudo URL prefix for loading from the class path: "classpath:"
 
Method Summary
 java.lang.ClassLoader getClassLoader()
          Expose the ClassLoader used by this ResourceLoader.
 Resource getResource(java.lang.String location)
          Return a Resource handle for the specified resource.
 

Field Detail

CLASSPATH_URL_PREFIX

static final java.lang.String CLASSPATH_URL_PREFIX
Pseudo URL prefix for loading from the class path: "classpath:"

See Also:
Constant Field Values
Method Detail

getResource

Resource getResource(java.lang.String location)
Return a Resource handle for the specified resource. The handle should always be a reusable resource descriptor, allowing for multiple Resource.getInputStream() calls.

Note that a Resource handle does not imply an existing resource; you need to invoke Resource.exists() to check for existence.

Parameters:
location - the resource location
Returns:
a corresponding Resource handle
See Also:
CLASSPATH_URL_PREFIX, Resource.exists(), Resource.getInputStream()

getClassLoader

java.lang.ClassLoader getClassLoader()
Expose the ClassLoader used by this ResourceLoader.

Clients which need to access the ClassLoader directly can do so in a uniform manner with the ResourceLoader, rather than relying on the thread context ClassLoader.

Returns:
the ClassLoader (never null)

Spring Framework