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

java.lang.Object
  org.eclipse.vtp.framework.engine.runtime.Builder

public abstract class Builder
extends java.lang.Object

A factory class that can construct and configure instances of a component.

Author:

Lonnie Pryor

Constructor Summary

protected

Builder() Creates a new Builder.

Method Summary

void	configure() Configures the currently active component instance.
java.lang.Object	create() Creates an instance of the component.
protected abstract IContext	createServiceRegistry() Creates a service registry for the current scope.
protected abstract java.lang.reflect.Constructor[]	getConstructors() Returns the constructors for the component.
protected abstract java.lang.reflect.Method[]	getMutators() Returns the mutator methods of the component.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

protected Builder()

Creates a new Builder.

Method Detail

create

public java.lang.Object create()
                        throws java.lang.IllegalStateException

Creates an instance of the component.

Returns:

The new component instance or null if it could not be created.

Throws:

java.lang.IllegalStateException - If a previously created component has not been configured.

configure

public void configure()
               throws java.lang.IllegalStateException

Configures the currently active component instance.

Throws:

java.lang.IllegalStateException - If there is no currently active component instance.

getConstructors

protected abstract java.lang.reflect.Constructor[] getConstructors()

Returns the constructors for the component.

Returns:

The constructors for the component.

getMutators

protected abstract java.lang.reflect.Method[] getMutators()

Returns the mutator methods of the component.

Returns:

The mutator methods of the component.

createServiceRegistry

protected abstract IContext createServiceRegistry()

Creates a service registry for the current scope.

Returns:

A new service registry for the current scope.