org.carrot2.core
Interface IProcessingComponentManager

All Known Implementing Classes:

CachingProcessingComponentManager, PoolingProcessingComponentManager, SimpleProcessingComponentManager

public interface IProcessingComponentManager

A component management strategy used by a Controller.

Method Summary

void	dispose() Called upon disposal of the controller.
void	init(IControllerContext context, Map<String,Object> attributes, ProcessingComponentConfiguration... configurations) Called upon initialization of the Controller.
IProcessingComponent	prepare(Class<? extends IProcessingComponent> clazz, String id, Map<String,Object> inputAttributes, Map<String,Object> outputAttributes) Prepares a component for processing.
void	recycle(IProcessingComponent component, String id) Called after processing completed.

Method Detail

init

void init(IControllerContext context,
          Map<String,Object> attributes,
          ProcessingComponentConfiguration... configurations)

Called upon initialization of the Controller.

Parameters:

context - controller context

attributes - global initialization attributes provided to the controller

configurations - component configurations provided to the controller

prepare

IProcessingComponent prepare(Class<? extends IProcessingComponent> clazz,
                             String id,
                             Map<String,Object> inputAttributes,
                             Map<String,Object> outputAttributes)

Prepares a component for processing. Specific managers may simply instantiate a new component object, fetch a component from a pool or wrap a component prepared by a delegate manager etc.

Parameters:

clazz - class of the component to prepare

id - Identifier of the component to prepare. May be null.

inputAttributes - input attributes for all components requested to perform processing. Both Init- and Processing-time attributes will be provided. Managers must not modify this map.

outputAttributes - storage for output attributes

recycle

void recycle(IProcessingComponent component,
             String id)

Called after processing completed. This method is called regardless of whether the processing completed successfully or with an error.

Parameters:

component - Component instance returned from prepare(java.lang.Class, java.lang.String, java.util.Map, java.util.Map).

id - The same identifier of the component as used in the call to prepare(java.lang.Class, java.lang.String, java.util.Map, java.util.Map). May be null.

dispose

void dispose()

Called upon disposal of the controller.