Apache Struts API Documentation: Interface DefinitionsFactory

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org.apache.struts.tiles Interface DefinitionsFactory

All Superinterfaces:: java.io.Serializable

All Known Implementing Classes:: ComponentDefinitionsFactoryWrapper

public interface DefinitionsFactory
extends java.io.Serializable

Tiles Definition factory. This interface replace old ComponentDefinitionsFactory. Main method getDefinition() is exactly the same. Initialization method change. This interface allows to retrieve a definition by its name, independently of the factory implementation. Object life cycle is as follow:

Constructor: create object
setConfig: set config and initialize factory. After first call to this method, factory is operational.
destroy: factory is being shutdown.

Implementation must be Serializable, in order to be compliant with web Container having this constraint (Weblogic 6.x).

Method Summary
`void`	`destroy()` Receive notification that the factory is being shut down.
`DefinitionsFactoryConfig`	`getConfig()` Get factory configuration.
`ComponentDefinition`	`getDefinition(java.lang.String name, javax.servlet.ServletRequest request, javax.servlet.ServletContext servletContext)` Get a definition by its name.
`void`	`init(DefinitionsFactoryConfig config, javax.servlet.ServletContext servletContext)` Init definition factory.
`void`	`setConfig(DefinitionsFactoryConfig config, javax.servlet.ServletContext servletContext)` Set factory configuration.

Method Detail

getDefinition

public ComponentDefinition getDefinition(java.lang.String name,
                                         javax.servlet.ServletRequest request,
                                         javax.servlet.ServletContext servletContext)
                                  throws NoSuchDefinitionException,
                                         DefinitionsFactoryException

Get a definition by its name.

Parameters:: name - Name of requested definition.; request - Current servelet request; servletContext - current servlet context
Throws:: DefinitionsFactoryException - An error occur while getting definition.; NoSuchDefinitionException - No definition found for specified name Implementation can throw more accurate exception as a subclass of this exception

init

public void init(DefinitionsFactoryConfig config,
                 javax.servlet.ServletContext servletContext)
          throws DefinitionsFactoryException

Init definition factory. This method is called immediately after factory creation, and prior any call to setConfig().

Parameters:: config - Configuration object used to set factory configuration.; servletContext - Servlet Context passed to factory.
Throws:: DefinitionsFactoryException - An error occur during initialization.

destroy

public void destroy()

Receive notification that the factory is being shut down.

setConfig

public void setConfig(DefinitionsFactoryConfig config,
                      javax.servlet.ServletContext servletContext)
               throws DefinitionsFactoryException

Set factory configuration. This method is used to change factory configuration. This method is optional, and can send an exception if implementation doesn't allow change in configuration.

Parameters:: config - Configuration object used to set factory configuration.; servletContext - Servlet Context passed to factory.
Throws:: DefinitionsFactoryException - An error occur during initialization.

getConfig

public DefinitionsFactoryConfig getConfig()

Get factory configuration.

Returns:: TilesConfig