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The basic runtime tools and interfaces for intarsys components.
There is a newer version: 4.11
/*
 * Copyright (c) 2012, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * - Neither the name of intarsys nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package de.intarsys.tools.enumeration;

import de.intarsys.tools.presentation.IPresentationSupport;

/**
 * A {@link Domain} implements an "ad-hoc" enumeration. For otherwise
 * unrestricted and unrelated tuples of base objects one can define a
 * {@link DomainItem}. These {@link DomainItem} instances are grouped in a
 * {@link Domain} that can for example be used for a choice in a user interface
 * element.
 * 
 */
public class Domain extends EnumMeta> {

	public Domain() {
		super(DomainItem.class);
	}

	/**
	 * A {@link DomainItem} for the array of object members defining the item
	 * state.
	 * 
	 * @param object
	 * 
	 * @return A {@link DomainItem} for the array of object members defining the
	 *         item state.
	 */
	public DomainItem getDomainItem(Object... object) {
		if (object == null) {
			object = new Object[] { null };
		}
		DomainItem tempItem = lookupDomainItem(object);
		if (tempItem == null) {
			tempItem = new DomainItem(this, object);
			if (object.length > 0) {
				Object temp = object[0];
				if (temp instanceof IPresentationSupport) {
					tempItem.setLabel(((IPresentationSupport) temp).getLabel());
				} else {
					tempItem.setLabel(String.valueOf(temp));
				}
			}
		}
		return tempItem;
	}

	public DomainItem getDomainItemOrDefault(Object... object) {
		if (object == null) {
			object = new Object[] { null };
		}
		DomainItem tempItem = lookupDomainItem(object);
		if (tempItem == null && isValidState(object)) {
			tempItem = getDomainItem(object);
		}
		if (tempItem == null) {
			return getDefault();
		}
		return tempItem;
	}

	public boolean isValidState(Object... object) {
		if (object == null) {
			object = new Object[] { null };
		}
		for (int i = 0; i < object.length; i++) {
			if (object[i] == null) {
				return false;
			}
		}
		return true;
	}

	public DomainItem lookupDomainItem(Object... object) {
		if (object == null) {
			object = new Object[] { null };
		}
		for (DomainItem item : getItems()) {
			if (item.isObject(object)) {
				return item;
			}
		}
		return null;
	}
}