com.beasys.commerce.util
Class PersistenceHelperPluginFactory

java.lang.Object
  |
  +--com.beasys.commerce.util.PersistenceHelperPluginFactory

public class PersistenceHelperPluginFactory

extends java.lang.Object

Factory for PersistenceHelperPlugin instances. Implements a "Singleton" design pattern for PersistenceHelperPlugins, where a single instance of a plugin exists for each plugin class.

Constructor Summary

PersistenceHelperPluginFactory()

Method Summary

static PersistenceHelperPlugin

createPlugin(java.lang.String pluginClassName) Returns a singleton instance of a PersistenceHelperPlugin denoted by the supplied class name.

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceHelperPluginFactory

public PersistenceHelperPluginFactory()

Method Detail

createPlugin

public static PersistenceHelperPlugin createPlugin(java.lang.String pluginClassName)
                                            throws java.lang.ClassNotFoundException,
                                                   java.lang.InstantiationException,
                                                   java.lang.IllegalAccessException

Returns a singleton instance of a PersistenceHelperPlugin denoted by the supplied class name. The method uses the design pattern that reduces contention and synchronization overhead.

Parameters:

pluginClassName - The name of the PersistenceHelperPlugin implementation class.

Throws:

java.lang.ClassCastException - if the class denoted by the pluginClassName is not an instance of a PersistenceHelperPlugin.

java.lang.ClassNotFoundException - if the class denoted by the pluginClassName could not be found.

java.lang.InstantiationException - if the instantiation of an instance of the class denoted by the pluginClassName fails for some reason.

java.lang.IllegalAccessException - if the class or initializer denoted by the pluginClassName is not accessible.