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• 1.6.0
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• package-info.java

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org.daisy.streamline.api.tasks.package-info Maven / Gradle / Ivy

/**
 * 
Provides an API for tasks. This package defines components necessary
 * to assemble a file format conversion dynamically at runtime.
 * 
 * 
TaskGroup is used to implement a task. This can in turn
 * be used by a TaskSystem to assemble a file format conversion.
 * Both these interfaces return a list of InternalTasks. An
 * InternalTask represents a file format conversion unit, which
 * can be one of several types:
 * 

 * 
Read Only - this type is typically used for validation
 * 
Read/Write - this type can be a conversion or enhancement
 * 
An "expanding" task - this is not a task in it self, but a task 
 * that expands into other tasks at the time of execution. The purpose of this
 * type is that it allows the actual input file to influence which tasks
 * are run. This makes it possible to, for example, provide a generic task for
 * XML which performs different tasks based on the XML namespace of the 
 * root element
 * 
 * 
Note that a TaskSystem resolving the tasks and performing the
 * actions needs to use reflexion to determine what action to take since the
 * InternalTask interface doesn't provide a way to execute the
 * task.
 * 
 * @author Joel Håkansson
 */
package org.daisy.streamline.api.tasks;