com.jcorporate.expresso.kernel
Class ComponentBase

java.lang.Object
  com.jcorporate.expresso.kernel.ComponentBase

All Implemented Interfaces:

Describable, ExpressoComponent, Serializable

Direct Known Subclasses:

ContainerComponentBase, CryptoManager, DefaultCacheManager, DefaultServiceWriter

public abstract class ComponentBase

extends Object

implements ExpressoComponent, Describable

This class provides a convienience base class for the majority of the ExpressoComponent interfaces. Derive from this class if you wish to create a component that is not a component container.

If you derive from this class, the class expresso runtime system automatically looks in the same package as the component's class name. And looks for an xml file with the same class as your derived component.

Author:

Michael Rimov

See Also:

Serialized Form

Constructor Summary

ComponentBase()
Default do nothing constructor

ComponentBase(Containable parent)
Constructor that takes the parent container as the argument

Method Summary

ComponentMetadata	getMetaData() Retrieve the metadata for the component
URL	getMetadataLocation() Return the metadata of this class.
Containable	getParent() Retrieve reference to the component container
void	setMetaData(ComponentMetadata metadata) Allows the metadata to be set by the system factory.
void	setParent(Containable parent) Set the component container reference

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentBase

public ComponentBase()

Default do nothing constructor

ComponentBase

public ComponentBase(Containable parent)

Constructor that takes the parent container as the argument

Parameters:

parent - The parent container

Method Detail

getMetaData

public ComponentMetadata getMetaData()

Retrieve the metadata for the component

Specified by:

getMetaData in interface ExpressoComponent

Returns:

ComponentMetadata

getParent

public Containable getParent()

Retrieve reference to the component container

Specified by:

getParent in interface ExpressoComponent

Returns:

the Container reference

setParent

public void setParent(Containable parent)

Set the component container reference

Specified by:

setParent in interface ExpressoComponent

Parameters:

parent - the parent container

setMetaData

public void setMetaData(ComponentMetadata metadata)

Allows the metadata to be set by the system factory.

Specified by:

setMetaData in interface Describable

Parameters:

metadata - the Metadata for this particular component.

getMetadataLocation

public URL getMetadataLocation()

Return the metadata of this class. This implementation looks for an xml file by the same name as the component class itself and in the same package location as the original class.

Specified by:

getMetadataLocation in interface Describable

Returns:

URL of the metadata location