org.apache.avalon.excalibur.pipeline
Class DefaultPipeline

java.lang.Object
  |
  +--org.apache.avalon.excalibur.pipeline.DefaultPipeline

All Implemented Interfaces:

org.apache.avalon.framework.component.Component, Pipeline, Stage

Direct Known Subclasses:

ProcessorPipeline

public class DefaultPipeline

extends java.lang.Object

implements Pipeline

This is basic array based pipeline.

Author:

Peter Donald

Field Summary

protected java.util.ArrayList

m_stages

Constructor Summary

DefaultPipeline()

Method Summary

void	addStage(Stage stage)
int	getSize() Retrieve size of pipeline (number of stages).
Stage	getStage(int index) Retrieve a particular stage of pipeline

Methods inherited from class java.lang.Object

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

Field Detail

m_stages

protected final java.util.ArrayList m_stages

Constructor Detail

DefaultPipeline

public DefaultPipeline()

Method Detail

getSize

public int getSize()

Retrieve size of pipeline (number of stages).

Specified by:

getSize in interface Pipeline

Returns:

the size of pipeline

getStage

public Stage getStage(int index)
               throws java.util.NoSuchElementException

Retrieve a particular stage of pipeline

Specified by:

getStage in interface Pipeline

Parameters:

index - the index of stage

Returns:

the stage

Throws:

java.util.NoSuchElementException - if index >= getSize() or index < 0

addStage

public void addStage(Stage stage)