org.apache.oodt.grid

Class Server

java.lang.Object

org.apache.oodt.grid.Server

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ProductServer, ProfileServer

public abstract class Server
extends Object
implements Serializable

An abstract server defines the code base and class name of a query handler.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected String	className Class name of the handler class.
protected Configuration	configuration Configuration.

Constructor Summary

Constructors

Constructor and Description
Server(Configuration configuration, String className) Creates a new Server instance.

Method Summary

Methods

Modifier and Type	Method and Description
static Server	create(Configuration configuration, Element elem) Create a server from an XML element.
Object	createHandler() Create the handler.
boolean	equals(Object obj)
String	getClassName() Get the class name of the query handler.
protected abstract String	getType() Return the type of the handler.
int	hashCode()
void	setClassName(String className) Set the class name of the handler.
String	toString()
Node	toXML(Document owner) Render this server into XML.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

configuration

protected Configuration configuration

Configuration.

className

protected String className

Class name of the handler class.

Constructor Detail

Server

public Server(Configuration configuration,
      String className)

Creates a new Server instance.

Parameters:

configuration - System configuration.

className - Class name of the query handler.

Method Detail

toXML

public Node toXML(Document owner)

Render this server into XML.

Parameters:

owner - Owning document.

Returns:

This server, as XML.

getClassName

public String getClassName()

Get the class name of the query handler.

Returns:

Class name of the query handler.

createHandler

public Object createHandler()
                     throws ClassNotFoundException,
                            InstantiationException,
                            IllegalAccessException

Create the handler.

Returns:

an instantiated handlre.

Throws:

ClassNotFoundException - if the handler class can't be found.

InstantiationException - if the handler object can't be created.

IllegalAccessException - if the handler class doesn't provide a public no-args constructor.

setClassName

public void setClassName(String className)

Set the class name of the handler.

Parameters:

className - Class name of the handler.

getType

protected abstract String getType()

Return the type of the handler.

Returns:

Either product or profile.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

create

public static Server create(Configuration configuration,
            Element elem)
                     throws SAXException

Create a server from an XML element.

Parameters:

elem - XML element, presumed to be a <server> element.

Returns:

a Server subclass.

Throws:

SAXException - if the element can't be properly parsed.