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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.
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package org.scijava.module.process;
import org.scijava.Cancelable;
import org.scijava.module.Module;
/**
* A module preprocessor defines a step that occurs just prior to the actual
* execution of a {@link Module}. Typically, a preprocessor prepares the module
* for execution in some way, such as populating module inputs or checking
* prerequisites.
*
* The preprocessor may decide to cancel the module's pending execution, subject
* to its own criteria. In this case, its {@link #isCanceled()} method will
* return true, and its {@link #getCancelReason()} method may optionally explain
* why.
*
*
* @author Curtis Rueden
*/
public interface ModulePreprocessor extends ModuleProcessor, Cancelable {
// NB: No implementation needed.
}