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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or .
 */
package org.hibernate.mapping;

import org.hibernate.MappingException;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.boot.registry.classloading.spi.ClassLoadingException;
import org.hibernate.boot.spi.MetadataBuildingContext;
import org.hibernate.boot.spi.MetadataImplementor;
import org.hibernate.type.CollectionType;
import org.hibernate.type.PrimitiveType;

/**
 * An array mapping has a primary key consisting of the key columns + index column.
 *
 * @author Gavin King
 */
public class Array extends List {
	private String elementClassName;

	/**
	 * @deprecated Use {@link Array#Array(MetadataBuildingContext, PersistentClass)} instead.
	 */
	@Deprecated
	public Array(MetadataImplementor metadata, PersistentClass owner) {
		super( metadata, owner );
	}

	public Array(MetadataBuildingContext buildingContext, PersistentClass owner) {
		super( buildingContext, owner );
	}

	public Class getElementClass() throws MappingException {
		if ( elementClassName == null ) {
			org.hibernate.type.Type elementType = getElement().getType();
			return isPrimitiveArray()
					? ( (PrimitiveType) elementType ).getPrimitiveClass()
					: elementType.getReturnedClass();
		}
		else {
			try {
				return getMetadata().getMetadataBuildingOptions()
						.getServiceRegistry()
						.getService( ClassLoaderService.class )
						.classForName( elementClassName );
			}
			catch (ClassLoadingException e) {
				throw new MappingException( e );
			}
		}
	}

	@Override
	public CollectionType getDefaultCollectionType() throws MappingException {
		return getMetadata().getTypeResolver()
				.getTypeFactory()
				.array( getRole(), getReferencedPropertyName(), getElementClass() );
	}

	@Override
	public boolean isArray() {
		return true;
	}

	/**
	 * @return Returns the elementClassName.
	 */
	public String getElementClassName() {
		return elementClassName;
	}

	/**
	 * @param elementClassName The elementClassName to set.
	 */
	public void setElementClassName(String elementClassName) {
		this.elementClassName = elementClassName;
	}

	@Override
	public Object accept(ValueVisitor visitor) {
		return visitor.accept( this );
	}
}