org.glassfish.api.deployment
Interface Deployer<T extends Container,U extends ApplicationContainer>

Type Parameters:

T - is the container type associated with this deployer

U - is the ApplicationContainer implementation for this deployer

public interface Deployer<T extends Container,U extends ApplicationContainer>

A deployer is capable of deploying one type of applications. Deployers shoud use the ArchiveHandler to get a ClassLoader capable of loading classes and resources from the archive type that his being deployed. In all cases the ApplicationContainer subclass must return the class loader associated with the application. In case the application is deployed to more than one container the class loader can be shared and therefore should be retrieved from the ArchiveHandler

Author:

Jerome Dochez

Method Summary

void	clean(DeploymentContext context) Clean any files and artifacts that were created during the execution of the prepare method.
MetaData	getMetaData() Returns the meta data assocated with this Deployer
U	load(T container, DeploymentContext context) Loads a previously prepared application in its execution environment and return a ContractProvider instance that will identify this environment in future communications with the application's container runtime.
<V> V	loadMetaData(java.lang.Class<V> type, DeploymentContext context) Loads the meta date associated with the application.
boolean	prepare(DeploymentContext context) Prepares the application bits for running in the application server.
void	unload(U appContainer, DeploymentContext context) Unload or stop a previously running application identified with the ContractProvider instance.

Method Detail

getMetaData

MetaData getMetaData()

Returns the meta data assocated with this Deployer

Returns:

the meta data for this Deployer

loadMetaData

<V> V loadMetaData(java.lang.Class<V> type,
                   DeploymentContext context)

Loads the meta date associated with the application.

Parameters:

type - type of meta-data that this deployer has declared providing.

Returns:

the meta-data of type V

prepare

boolean prepare(DeploymentContext context)

Prepares the application bits for running in the application server. For certain cases, this is generating non portable artifacts and other application specific tasks. Failure to prepare should throw an exception which will cause the overall deployment to fail.

Parameters:

context - of the deployment

Returns:

true if the prepare phase executed successfully

load

U load(T container,
       DeploymentContext context)

Loads a previously prepared application in its execution environment and return a ContractProvider instance that will identify this environment in future communications with the application's container runtime.

Parameters:

container - in which the application will reside

context - of the deployment

Returns:

an ApplicationContainer instance identifying the running application

unload

void unload(U appContainer,
            DeploymentContext context)

Unload or stop a previously running application identified with the ContractProvider instance. The container will be stop upon return from this method.

Parameters:

appContainer - instance to be stopped

context - of the undeployment

clean

void clean(DeploymentContext context)

Clean any files and artifacts that were created during the execution of the prepare method.

Parameters:

context - deployment context