/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.foundation.dm.eo.model;

import java.util.logging.Level;
import java.util.logging.Logger;

import org.openflexo.logging.FlexoLogger;

/**
 * @author gpolet
 * 
 */
public abstract class EOProperty extends EOObject {
	private static final Logger logger = FlexoLogger.getLogger(EOProperty.class.getPackage().getName());

	private EOEntity entity;

	public EOEntity getEntity() {
		return entity;
	}

	public void setEntity(EOEntity entity) {
		if (this.entity != null && this.entity != entity) {
			this.entity.removeProperty(this);
		}
		this.entity = entity;
	}

	/**
	 * @return
	 */
	public boolean getIsClassProperty() {
		if (getEntity() != null) {
			return getEntity().getClassProperties().contains(this);
		} else if (logger.isLoggable(Level.WARNING)) {
			logger.warning("Impossible to determine if property is class property because it has no entity");
		}
		return false;
	}

	/**
	 * @param isClassProperty
	 */
	public void setIsClassProperty(boolean isClassProperty) {
		if (getEntity() == null) {
			throw new IllegalStateException("Trying to set a property as a class property while the property has no entity");
		}
		if (getIsClassProperty() != isClassProperty) {
			if (isClassProperty) {
				getEntity().getClassProperties().add(this);
			} else {
				getEntity().getClassProperties().remove(this);
			}
		}
	}

	/**
	 * Overrides setName
	 * 
	 * @see org.openflexo.foundation.dm.eo.model.EOObject#setName(java.lang.String)
	 */
	@Override
	public void setName(String name) {
		if (getEntity() != null) {
			if (getEntity().propertyNamed(name) != null) {
				throw new IllegalArgumentException("Another property is already named " + name + " in entity " + getEntity().getName());
			}
		}
		if (name == null) {
			throw new NullPointerException();
		}
		super.setName(name);
	}
}