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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.mapping;

import java.io.Serializable;
import java.util.Iterator;
import java.util.StringTokenizer;

import org.hibernate.EntityMode;
import org.hibernate.MappingException;
import org.hibernate.PropertyNotFoundException;
import org.hibernate.engine.CascadeStyle;
import org.hibernate.engine.Mapping;
import org.hibernate.property.Getter;
import org.hibernate.property.PropertyAccessor;
import org.hibernate.property.PropertyAccessorFactory;
import org.hibernate.property.Setter;
import org.hibernate.type.CompositeType;
import org.hibernate.type.Type;
import org.hibernate.util.ArrayHelper;

/**
 * Represents a property as part of an entity or a component.
 *
 * @author Gavin King
 */
public class Property implements Serializable, MetaAttributable {

	private String name;
	private Value value;
	private String cascade;
	private boolean updateable = true;
	private boolean insertable = true;
	private boolean selectable = true;
	private boolean optimisticLocked = true;
	private PropertyGeneration generation = PropertyGeneration.NEVER;
	private String propertyAccessorName;
	private boolean lazy;
	private boolean optional;
	private String nodeName;
	private java.util.Map metaAttributes;
	private PersistentClass persistentClass;
	private boolean naturalIdentifier;

	public boolean isBackRef() {
		return false;
	}

	/**
	 * Does this property represent a synthetic property?  A synthetic property is one we create during
	 * metamodel binding to represent a collection of columns but which does not represent a property
	 * physically available on the entity.
	 *
	 * @return True if synthetic; false otherwise.
	 */
	public boolean isSynthetic() {
		return false;
	}

	public Type getType() throws MappingException {
		return value.getType();
	}
	
	public int getColumnSpan() {
		return value.getColumnSpan();
	}
	
	public Iterator getColumnIterator() {
		return value.getColumnIterator();
	}
	
	public String getName() {
		return name;
	}
	
	public boolean isComposite() {
		return value instanceof Component;
	}

	public Value getValue() {
		return value;
	}
	
	public boolean isPrimitive(Class clazz) {
		return getGetter(clazz).getReturnType().isPrimitive();
	}

	public CascadeStyle getCascadeStyle() throws MappingException {
		Type type = value.getType();
		if ( type.isComponentType() ) {
			return getCompositeCascadeStyle( (CompositeType) type, cascade );
		}
		else if ( type.isCollectionType() ) {
			return getCollectionCascadeStyle( ( (Collection) value ).getElement().getType(), cascade );
		}
		else {
			return getCascadeStyle( cascade );			
		}
	}

	private static CascadeStyle getCompositeCascadeStyle(CompositeType compositeType, String cascade) {
		if ( compositeType.isAnyType() ) {
			return getCascadeStyle( cascade );
		}
		int length = compositeType.getSubtypes().length;
		for ( int i=0; i