org.eclipse.vtp.framework.engine.runtime
Class Process

java.lang.Object
  org.eclipse.vtp.framework.engine.runtime.Scope
      org.eclipse.vtp.framework.engine.runtime.Process

All Implemented Interfaces:

IProcess

public class Process
extends Scope
implements IProcess

Implementation of the process scope and context.

Author:

Lonnie Pryor

Nested Class Summary

protected class

Process.Context Implementation of the generic context.

Field Summary

protected Blueprint	blueprint The process blueprint.
protected Process.Context	context The generic context implementation.

Constructor Summary

Process(Blueprint blueprint, IProcessDescriptor descriptor)
Creates a new Process.

Method Summary

ISession	createSession(ISessionDescriptor descriptor) Creates a new process engine session from the specified descriptor.
java.lang.String	getProcessID() Returns the ID of this process.
protected java.util.Collection	getServices(java.lang.String identifier)
protected java.lang.Object[]	lookupAllInScope(java.lang.String identifier)
java.lang.Object[]	lookupAllServices(java.lang.String identifier) Returns an array containing all the services registered under the specified identifier.
protected java.lang.Object	lookupInScope(java.lang.String identifier)
java.lang.Object	lookupService(java.lang.String identifier) Looks up the service selected for the specified identifier or null if no such service exists.

Methods inherited from class org.eclipse.vtp.framework.engine.runtime.Scope

getServiceInstance, registerImplicitServices

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

blueprint

protected final Blueprint blueprint

The process blueprint.

context

protected final Process.Context context

The generic context implementation.

Constructor Detail

Process

public Process(Blueprint blueprint,
               IProcessDescriptor descriptor)
        throws java.lang.NullPointerException

Creates a new Process.

Parameters:

blueprint - The process blueprint.

descriptor - The process descriptor.

Throws:

java.lang.NullPointerException - If the supplied blueprint is null.

java.lang.NullPointerException - If the supplied descriptor is null.

Method Detail

lookupInScope

protected java.lang.Object lookupInScope(java.lang.String identifier)

Overrides:

lookupInScope in class Scope

lookupAllInScope

protected java.lang.Object[] lookupAllInScope(java.lang.String identifier)

Overrides:

lookupAllInScope in class Scope

getServices

protected java.util.Collection getServices(java.lang.String identifier)

Specified by:

getServices in class Scope

getProcessID

public java.lang.String getProcessID()

Description copied from interface: IProcess

Returns the ID of this process.

Specified by:

getProcessID in interface IProcess

Returns:

The ID of this process.

lookupService

public java.lang.Object lookupService(java.lang.String identifier)
                               throws java.lang.NullPointerException

Description copied from interface: IProcess

Looks up the service selected for the specified identifier or null if no such service exists.

Specified by:

lookupService in interface IProcess

Parameters:

identifier - The identifier of the service to look up.

Returns:

The service selected for the specified identifier or null if no such service exists.

Throws:

java.lang.NullPointerException - If the supplied identifier is null.

lookupAllServices

public java.lang.Object[] lookupAllServices(java.lang.String identifier)
                                     throws java.lang.NullPointerException

Description copied from interface: IProcess

Returns an array containing all the services registered under the specified identifier.

Specified by:

lookupAllServices in interface IProcess

Parameters:

identifier - The identifier of the services to look up.

Returns:

An array containing all the services registered under the specified identifier.

Throws:

java.lang.NullPointerException - If the supplied identifier is null.

createSession

public ISession createSession(ISessionDescriptor descriptor)
                       throws java.lang.NullPointerException

Description copied from interface: IProcess

Creates a new process engine session from the specified descriptor.

Specified by:

createSession in interface IProcess

Parameters:

descriptor - The descriptor of the session to create.

Returns:

A new process engine session from the specified descriptor.

Throws:

java.lang.NullPointerException - If the specified descriptor is null.