Package org.nuiton.topia.persistence

Class TopiaApplicationContextCache

java.lang.Object

org.nuiton.topia.persistence.TopiaApplicationContextCache

public class TopiaApplicationContextCache
extends Object

This class will provide a TopiaApplicationContext cache. Its usage is not necessary, contexts can be directly created outside of this cache, then the cache will not contain any reference to the created ApplicationContexts.

This class is 'inspired' from the TopiaContextFactory of ToPIA 2.x

Since:

3.0

Author:

Arnaud Thimel (Code Lutin)

Field Summary

Fields

Modifier and Type	Field	Description
protected static Map<Properties,TopiaApplicationContext>	contextCache	Cache that contains all some already registered caches

Constructor Summary

Constructors

Constructor	Description
TopiaApplicationContextCache()

Method Summary

Modifier and Type	Method	Description
static <C extends TopiaApplicationContext> C	getContext(Properties config, com.google.common.base.Function<Properties,C> createContextFunction)	Static method that can provide an ApplicationContext.
static List<String>	getRegisteredContextUrls()	Method to get the list of contexts in memory (each context is identified by its URL).
static void	removeContext(TopiaApplicationContext context)	Remove the given TopiaApplicationContext from the registered ones

Methods inherited from class java.lang.Object

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

Field Details

contextCache

protected static Map<Properties,TopiaApplicationContext> contextCache

Cache that contains all some already registered caches

Constructor Details

TopiaApplicationContextCache

public TopiaApplicationContextCache()

Method Details

getContext

public static <C extends TopiaApplicationContext> C getContext(Properties config,
 com.google.common.base.Function<Properties,C> createContextFunction)

Static method that can provide an ApplicationContext. If the found context is closed, or if it does not exist, a new one is created using the given Function<Properties, C>.

Type Parameters:

C - the type of TopiaApplicationContext you expect

Parameters:

config - the configuration of the context

createContextFunction - the function that will be in charge of the context creation. It might not be used inside the method if the context is found and still opened

Returns:

an opened instance of XyzTopiaApplicationContext

getRegisteredContextUrls

public static List<String> getRegisteredContextUrls()

Method to get the list of contexts in memory (each context is identified by its URL). To be used for debugging purpose only.

Returns:

a list of contexts URLs

removeContext

public static void removeContext(TopiaApplicationContext context)

Remove the given TopiaApplicationContext from the registered ones

Parameters:

context - the context instance to remove