Java Doc for FactoryService.java in  » Web-Framework » TURBINE » org » apache » turbine » services » factory » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » TURBINE » org.apache.turbine.services.factory 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.turbine.services.factory.FactoryService

All known Subclasses:   org.apache.turbine.services.factory.TurbineFactoryService,
FactoryService
public interface FactoryService extends Service(Code)
The Factory Service instantiates objects using either default class loaders or a specified one. Whether specified class loaders are supported for a class depends on implementation and can be tested with the isLoaderSupported method.
author:
   Ilkka Priha
version:
   $Id: FactoryService.java 534527 2007-05-02 16:10:59Z tv $


Field Summary
 StringSERVICE_NAME
     The key under which this service is stored in TurbineServices.


Method Summary
 ObjectgetInstance(String className)
     Gets an instance of a named class.
Parameters:
  className - the name of the class.
 ObjectgetInstance(String className, ClassLoader loader)
     Gets an instance of a named class using a specified class loader.

Class loaders are supported only if the isLoaderSupported method returns true.

 ObjectgetInstance(String className, Object[] params, String[] signature)
     Gets an instance of a named class. Parameters for its constructor are given as an array of objects, primitive types must be wrapped with a corresponding class.
Parameters:
  className - the name of the class.
Parameters:
  params - an array containing the parameters of the constructor.
Parameters:
  signature - an array containing the signature of the constructor.
 ObjectgetInstance(String className, ClassLoader loader, Object[] params, String[] signature)
     Gets an instance of a named class using a specified class loader. Parameters for its constructor are given as an array of objects, primitive types must be wrapped with a corresponding class.

Class loaders are supported only if the isLoaderSupported method returns true.

 Class[]getSignature(Class clazz, Object params, String signature)
     Gets the signature classes for parameters of a method of a class.
Parameters:
  clazz - the class.
Parameters:
  params - an array containing the parameters of the method.
Parameters:
  signature - an array containing the signature of the method.
 booleanisLoaderSupported(String className)
     Tests if specified class loaders are supported for a named class.
Parameters:
  className - the name of the class.

Field Detail
SERVICE_NAME
String SERVICE_NAME(Code)
The key under which this service is stored in TurbineServices.





Method Detail
getInstance
Object getInstance(String className) throws TurbineException(Code)
Gets an instance of a named class.
Parameters:
  className - the name of the class. the instance.
throws:
  TurbineException - if instantiation fails.



getInstance
Object getInstance(String className, ClassLoader loader) throws TurbineException(Code)
Gets an instance of a named class using a specified class loader.

Class loaders are supported only if the isLoaderSupported method returns true. Otherwise the loader parameter is ignored.
Parameters:
  className - the name of the class.
Parameters:
  loader - the class loader. the instance.
throws:
  TurbineException - if instantiation fails.




getInstance
Object getInstance(String className, Object[] params, String[] signature) throws TurbineException(Code)
Gets an instance of a named class. Parameters for its constructor are given as an array of objects, primitive types must be wrapped with a corresponding class.
Parameters:
  className - the name of the class.
Parameters:
  params - an array containing the parameters of the constructor.
Parameters:
  signature - an array containing the signature of the constructor. the instance.
throws:
  TurbineException - if instantiation fails.



getInstance
Object getInstance(String className, ClassLoader loader, Object[] params, String[] signature) throws TurbineException(Code)
Gets an instance of a named class using a specified class loader. Parameters for its constructor are given as an array of objects, primitive types must be wrapped with a corresponding class.

Class loaders are supported only if the isLoaderSupported method returns true. Otherwise the loader parameter is ignored.
Parameters:
  className - the name of the class.
Parameters:
  loader - the class loader.
Parameters:
  params - an array containing the parameters of the constructor.
Parameters:
  signature - an array containing the signature of the constructor. the instance.
throws:
  TurbineException - if instantiation fails.




getSignature
Class[] getSignature(Class clazz, Object params, String signature) throws ClassNotFoundException(Code)
Gets the signature classes for parameters of a method of a class.
Parameters:
  clazz - the class.
Parameters:
  params - an array containing the parameters of the method.
Parameters:
  signature - an array containing the signature of the method. an array of signature classes. Note that in some casesobjects in the parameter array can be switched to the contextof a different class loader.
throws:
  ClassNotFoundException - if any of the classes is not found.



isLoaderSupported
boolean isLoaderSupported(String className) throws TurbineException(Code)
Tests if specified class loaders are supported for a named class.
Parameters:
  className - the name of the class. true if class loaders are supported, false otherwise.
throws:
  TurbineException - if test fails.



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