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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 both ImageJ and SCIFIO.

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/*
 * #%L
 * SciJava Common shared library for SciJava software.
 * %%
 * Copyright (C) 2009 - 2016 Board of Regents of the University of
 * Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
 * Institute of Molecular Cell Biology and Genetics.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * 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.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
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package org.scijava.parse;

import java.util.List;
import java.util.Map;

/**
 * An ordered list of items, some of which might be key/value pairs, and some of
 * which might be raw values.
 * 
 * @author Curtis Rueden
 */
public interface Items extends List {

	/**
	 * Gets the parsed items as a map. The map will have the same iteration
	 * order as the original list.
	 */
	Map asMap();

	/** Returns true iff all items are named key/value pairs. */
	boolean isMap();

	/** Returns true iff there are no named key/value pairs among the items. */
	boolean isList();

}