Package net.dpml.transit

The transit package contains the primary runtime classes within the Transit resource management system.

See:
Description

Interface Summary

CacheHandler	The CacheHandler interface defines the contract for classes capable of supporting the cache management aspects of a transit system.
Disposable	The Disposable interface is implemented by a disposable sub-system within Transit.
Layout	A Layout abstracts the decoding process of the location of artifacts in various filesystems.
LayoutRegistry	A interface supporting access to pluggable content handlers.
ResourceHost	An interface that represents locations where the artifacts can be downloaded.
TransitAuthenticator	Transit authenticator contract.

Class Summary

Artifact	A utility class the handles validation of artifact style uri strings.
ClassicLayout	The ClassicLayout decodes artifacts into the Classic/Maven layout of artifacts on a file system or http server.
DefaultModel	A abstract base class that established an event queue and handles event dispatch operations for listeners declared in classes extending this base class.
DefaultTransitModel	The DefaultTransitModel class maintains an active configuration of the Transit system.
EclipseLayout	The EclipseLayout decodes artifacts into the Eclipse specified layout of artifacts on a file system or http server.
Environment	Encapsulates operating system and shell specific access to environment variables.
ModernLayout	The ModernLayout decodes artifacts into a layout scheme that follows the convention of group/name/version/expanded-name pattern.
SecuredTransitContext	The initial context of the transit system.
Transit	The Transit class manages the establishment of a singleton transit instance together with a service supporting the deployment of a application plugin and access to transit monitor routers.
TransitBuilder	Utility class supporting the reading of Transit XML configurations.

Exception Summary

EnvironmentException	A simple wrapper exception around exceptions that could occur while accessing environment parameters.
ModelRuntimeException	Exception to indicate that there was a configuration model related error.
NullArgumentException	Exception thrown when the argument to a method or constructor is null and not handled by the method/constructor/class.
PluginClassNotFoundException	Exception thrown when a plugin class cannot be found.
RepositoryException	Exception to indicate that there was a repository related error.
TransitAlreadyInitializedException	Runtime exception throw when an attempt is made to initialize transit when an existing Transit instance is already active.
TransitException	Exception to indicate that there was an exception related to the transit protocol.
TransitRuntimeException	Runtime exception to indicate that there was a transit system error.
UnsupportedSchemeException	Exception to indicate that the scheme of a supplied uri is not recognized as a member of the artifact family.

Error Summary

TransitError

Critical Transit system error.

Package net.dpml.transit Description

The transit package contains the primary runtime classes within the Transit resource management system.

The principal Transit class is responsible for the establishment of the Transit runtime based on a default or explicit TransitModel. The Transit class provides the internal machinery for a protocol handler dealing with the "artifact" and "link" uri schemes and the corresponding url protocols. In addition Transit provides access to classloader construction services via the following static operation:

Repository Transit.getInstance().getRepository();