dap4.servlet

Class DSPFactory

java.lang.Object

dap4.servlet.DSPFactory

public abstract class DSPFactory
extends Object

Provide a factory for DSP instances

Constructor Summary

Constructors

Constructor and Description
DSPFactory()

Method Summary

Methods

Modifier and Type	Method and Description
static DSP	create(String path)
static boolean	dspRegistered(Class klass) See if a specific DSP is registered
static void	dspUnregister(Class klass) Unregister dsp.
static void	registerDSP(Class klass) Register a DSP class.
static void	registerDSP(Class klass, boolean last) Register a DSP class.
static void	registerDSP(String className) Register a DSP, using its class string name.

Methods inherited from class java.lang.Object

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

Constructor Detail

DSPFactory

public DSPFactory()

Method Detail

registerDSP

public static void registerDSP(String className)
                        throws DapException

Register a DSP, using its class string name.

Parameters:

className - Class that implements DSP.

Throws:

IllegalAccessException - if class is not accessible.

InstantiationException - if class doesnt have a no-arg constructor.

ClassNotFoundException - if class not found.

DapException

registerDSP

public static void registerDSP(Class klass)

Register a DSP class.

Parameters:

klass - Class that implements DSP.

Throws:

IllegalAccessException - if class is not accessible.

InstantiationException - if class doesnt have a no-arg constructor.

ClassCastException - if class doesnt implement DSP interface.

registerDSP

public static void registerDSP(Class klass,
               boolean last)

Register a DSP class.

Parameters:

klass - Class that implements DSP.

last - true=>insert at the end of the list; otherwise front

Throws:

IllegalAccessException - if class is not accessible.

InstantiationException - if class doesnt have a no-arg constructor.

ClassCastException - if class doesnt implement DSP interface.

dspRegistered

public static boolean dspRegistered(Class klass)

See if a specific DSP is registered

Parameters:

klass - Class for which to search

dspUnregister

public static void dspUnregister(Class klass)

Unregister dsp.

Parameters:

klass - Class for which to search

create

public static DSP create(String path)
                  throws DapException

Parameters:

path -

Returns:

DSP object that can process this path

Throws:

DapException