/*******************************************************************************
 * Copyright (c) 2008, 2010 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0, which accompanies this distribution
 * and is available at http://www.eclipse.org/legal/epl-v10.html.
 * 
 * Contributors:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.eclipselink.core.internal.context.orm;

import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.jpt.core.context.JoinColumn;
import org.eclipse.jpt.core.context.orm.OrmTypeMapping;
import org.eclipse.jpt.core.internal.context.orm.VirtualXmlJoinColumn;
import org.eclipse.jpt.core.internal.context.orm.VirtualXmlOneToMany;
import org.eclipse.jpt.core.jpa2.context.OneToManyMapping2_0;
import org.eclipse.jpt.core.jpa2.context.java.JavaOrphanRemovable2_0;
import org.eclipse.jpt.core.jpa2.context.java.JavaOrphanRemovalHolder2_0;
import org.eclipse.jpt.core.resource.orm.CascadeType;
import org.eclipse.jpt.core.resource.orm.FetchType;
import org.eclipse.jpt.core.resource.orm.MapKey;
import org.eclipse.jpt.core.resource.orm.OrmPackage;
import org.eclipse.jpt.core.resource.orm.XmlJoinColumn;
import org.eclipse.jpt.core.resource.orm.XmlJoinTable;
import org.eclipse.jpt.core.resource.orm.XmlOrderColumn;
import org.eclipse.jpt.core.utility.TextRange;
import org.eclipse.jpt.eclipselink.core.context.EclipseLinkJoinFetchType;
import org.eclipse.jpt.eclipselink.core.internal.context.java.JavaEclipseLinkOneToManyMapping;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlAccessMethods;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlJoinFetchType;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlOneToMany;
import org.eclipse.jpt.eclipselink.core.resource.orm.XmlProperty;
import org.eclipse.jpt.utility.internal.CollectionTools;

/**
 * VirtualBasic is an implementation of Basic used when there is 
 * no tag in the orm.xml and an underlying javaBasicMapping exists.
 */
public class VirtualEclipseLinkXmlOneToMany extends XmlOneToMany
{	
	protected OrmTypeMapping ormTypeMapping;
	
	protected final JavaEclipseLinkOneToManyMapping javaAttributeMapping;

	protected final VirtualXmlOneToMany virtualXmlOneToMany;
		
	public VirtualEclipseLinkXmlOneToMany(
			OrmTypeMapping ormTypeMapping, JavaEclipseLinkOneToManyMapping javaOneToManyMapping) {
		super();
		this.ormTypeMapping = ormTypeMapping;
		this.javaAttributeMapping = javaOneToManyMapping;
		this.virtualXmlOneToMany = new VirtualXmlOneToMany(ormTypeMapping, javaOneToManyMapping);
	}
	
	protected boolean isOrmMetadataComplete() {
		return this.ormTypeMapping.isMetadataComplete();
	}
		
	@Override
	public String getMappingKey() {
		return this.virtualXmlOneToMany.getMappingKey();
	}
	
	@Override
	public String getName() {
		return this.virtualXmlOneToMany.getName();
	}

	@Override
	public void setName(String newName) {
		this.virtualXmlOneToMany.setName(newName);
	}
	
	@Override
	public TextRange getNameTextRange() {
		return this.virtualXmlOneToMany.getNameTextRange();
	}
	
	@Override
	public FetchType getFetch() {
		return this.virtualXmlOneToMany.getFetch();
	}

	@Override
	public void setFetch(FetchType newFetch) {
		this.virtualXmlOneToMany.setFetch(newFetch);
	}

	@Override
	public CascadeType getCascade() {
		return this.virtualXmlOneToMany.getCascade();
	}
	
	@Override
	public void setCascade(CascadeType value) {
		this.virtualXmlOneToMany.setCascade(value);
	}
	
	@Override
	public XmlJoinTable getJoinTable() {
		return this.virtualXmlOneToMany.getJoinTable();
	}

	@Override
	public void setJoinTable(XmlJoinTable value) {
		this.virtualXmlOneToMany.setJoinTable(value);
	}
	
	@Override
	public String getTargetEntity() {
		return this.virtualXmlOneToMany.getTargetEntity();
	}

	@Override
	public void setTargetEntity(String value) {
		this.virtualXmlOneToMany.setTargetEntity(value);
	}
	
	@Override
	public String getMappedBy() {
		return this.virtualXmlOneToMany.getMappedBy();
	}
	
	@Override
	public void setMappedBy(String value) {
		this.virtualXmlOneToMany.setMappedBy(value);
	}

	
	@Override
	public MapKey getMapKey() {
		return this.virtualXmlOneToMany.getMapKey();
	}
	
	@Override
	public void setMapKey(MapKey value) {
		this.virtualXmlOneToMany.setMapKey(value);
	}
	
	@Override
	public String getOrderBy() {
		return this.virtualXmlOneToMany.getOrderBy();
	}
	
	@Override
	public void setOrderBy(String value) {
		this.virtualXmlOneToMany.setOrderBy(value);
	}
	
	@Override
	public XmlOrderColumn getOrderColumn() {
		return this.virtualXmlOneToMany.getOrderColumn();
	}
	
	@Override
	public TextRange getMappedByTextRange() {
		return this.virtualXmlOneToMany.getMappedByTextRange();
	}
	
	@Override
	public TextRange getTargetEntityTextRange() {
		return this.virtualXmlOneToMany.getTargetEntityTextRange();
	}	
	
	@Override
	public EList<XmlJoinColumn> getJoinColumns() {
		EList<XmlJoinColumn> joinColumns = new EObjectContainmentEList<XmlJoinColumn>(XmlJoinColumn.class, this, OrmPackage.XML_ONE_TO_MANY__JOIN_COLUMNS);
		if (isOrmMetadataComplete()) {
			return joinColumns;
		}
		for (JoinColumn joinColumn : 
			CollectionTools.iterable(
				this.javaAttributeMapping.getRelationshipReference().
					getJoinColumnJoiningStrategy().specifiedJoinColumns())) {
			XmlJoinColumn xmlJoinColumn = new VirtualXmlJoinColumn(joinColumn, isOrmMetadataComplete());
			joinColumns.add(xmlJoinColumn);
		}
		return joinColumns;
	}

	@Override
	public XmlJoinFetchType getJoinFetch() {
		if (isOrmMetadataComplete()) {
			return null; //don't return default value, it only applies for an empty @JoinFetch
		}
		return EclipseLinkJoinFetchType.toOrmResourceModel(this.javaAttributeMapping.getJoinFetch().getValue());
	}
	
	@Override
	public void setJoinFetch(XmlJoinFetchType value) {
		throw new UnsupportedOperationException("cannot set values on a virtual mapping"); //$NON-NLS-1$
	}
	
	@Override
	public boolean isPrivateOwned() {
		if (isOrmMetadataComplete()) {
			return false;
		}
		return this.javaAttributeMapping.getPrivateOwned().isPrivateOwned();
	}
	
	@Override
	public void setPrivateOwned(boolean value) {
		throw new UnsupportedOperationException("cannot set values on a virtual mapping"); //$NON-NLS-1$
	}
	
	@Override
	public XmlAccessMethods getAccessMethods() {
		return null;
	}
	
	@Override
	public void setAccessMethods(XmlAccessMethods value) {
		throw new UnsupportedOperationException("cannot set values on a virtual mapping"); //$NON-NLS-1$		
	}
	
	@Override
	public EList<XmlProperty> getProperties() {
		// TODO get from java annotations
		return null;
	}
	
	@Override
	public TextRange getJoinFetchTextRange() {
		return null;
	}
	
	@Override
	public TextRange getPrivateOwnedTextRange() {
		return null;
	}
	
	private JavaOrphanRemovable2_0 getOrphanRemovalOf(OneToManyMapping2_0 oneToManyMapping) {
		return ((JavaOrphanRemovalHolder2_0) oneToManyMapping).getOrphanRemoval();
	}

	@Override
	public Boolean getOrphanRemoval() {
		JavaOrphanRemovable2_0 mappingsOrphanRemoval = this.getOrphanRemovalOf(this.javaAttributeMapping);
		if (this.isOrmMetadataComplete()) {
			return Boolean.valueOf(mappingsOrphanRemoval.isDefaultOrphanRemoval());
		}
		return Boolean.valueOf(mappingsOrphanRemoval.isOrphanRemoval());
	}

	@Override
	public void setOrphanRemoval(Boolean newOrphanRemoval) {
		throw new UnsupportedOperationException("cannot set values on a virtual mapping"); //$NON-NLS-1$
	}

}