Interface ContextLoader

All Known Subinterfaces:
All Known Implementing Classes:
AbstractContextLoader, AbstractGenericContextLoader, AnnotationConfigContextLoader, DelegatingSmartContextLoader, GenericPropertiesContextLoader, GenericXmlContextLoader

public interface ContextLoader

Strategy interface for loading an application context for an integration test managed by the Spring TestContext Framework.

Note: as of Spring 3.1, implement SmartContextLoader instead of this interface in order to provide support for configuration classes and active bean definition profiles.

Clients of a ContextLoader should call processLocations() prior to calling loadContext() in case the ContextLoader provides custom support for modifying or generating locations. The results of processLocations() should then be supplied to loadContext().

Concrete implementations must provide a public no-args constructor.

Spring provides the following out-of-the-box implementations:

Sam Brannen, Juergen Hoeller
See Also:
SmartContextLoader, AnnotationConfigContextLoader

Method Summary
 ApplicationContext loadContext(java.lang.String... locations)
          Loads a new context based on the supplied locations, configures the context, and finally returns the context in fully refreshed state.
 java.lang.String[] processLocations(java.lang.Class<?> clazz, java.lang.String... locations)
          Processes application context resource locations for a specified class.

Method Detail


java.lang.String[] processLocations(java.lang.Class<?> clazz,
                                    java.lang.String... locations)
Processes application context resource locations for a specified class.

Concrete implementations may choose to modify the supplied locations, generate new locations, or simply return the supplied locations unchanged.

clazz - the class with which the locations are associated: used to determine how to process the supplied locations
locations - the unmodified locations to use for loading the application context (can be null or empty)
an array of application context resource locations


ApplicationContext loadContext(java.lang.String... locations)
                               throws java.lang.Exception
Loads a new context based on the supplied locations, configures the context, and finally returns the context in fully refreshed state.

Configuration locations are generally considered to be classpath resources by default.

Concrete implementations should register annotation configuration processors with bean factories of application contexts loaded by this ContextLoader. Beans will therefore automatically be candidates for annotation-based dependency injection using @Autowired, @Resource, and @Inject.

Any ApplicationContext loaded by a ContextLoader must register a JVM shutdown hook for itself. Unless the context gets closed early, all context instances will be automatically closed on JVM shutdown. This allows for freeing external resources held by beans within the context, e.g. temporary files.

locations - the resource locations to use to load the application context
a new application context
java.lang.Exception - if context loading failed