/*
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 * SciJava Common shared library for SciJava software.
 * %%
 * Copyright (C) 2009 - 2026 SciJava developers.
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 * modification, are permitted provided that the following conditions are met:
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 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
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 *    and/or other materials provided with the distribution.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package org.scijava.main;

import org.scijava.service.SciJavaService;

/**
 * Interface for services which manage dynamic execution of main methods.
 * 
 * @author Curtis Rueden
 */
public interface MainService extends SciJavaService {

	/**
	 * Executes registered main classes, in the order they were registered.
	 * 
	 * @return The number of main methods which were executed.
	 */
	int execMains();

	/** Registers a main class to be executed by {@link #execMains()}. */
	void addMain(final String className, final String... args);

	/** Gets the registered main classes to execute. */
	Main[] getMains();

	/** Data structure containing main class and argument values. */
	interface Main {

		/** Gets the name of the class containing the {@code main} method to run. */
		String className();

		/** Gets the arguments to pass to the class's {@code main} method. */
		String[] args();

		/** Runs the {@code main} method with the associated arguments. */
		void exec();
	}

}
