Hibernate example source code file (ComponentAttributeSourceImpl.java)

This example Hibernate source code file (ComponentAttributeSourceImpl.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

arraylist, attributesourcecontainer, componentattributesourceimpl, componentattributesourceimpl, iterable, list, localbindingcontext, override, override, string, string, util, value, xmlcomponentelement, xmlcomponentelement

The Hibernate ComponentAttributeSourceImpl.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, 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.metamodel.source.hbm;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.EntityMode;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.internal.util.Value;
import org.hibernate.mapping.PropertyGeneration;
import org.hibernate.metamodel.source.LocalBindingContext;
import org.hibernate.metamodel.source.binder.AttributeSource;
import org.hibernate.metamodel.source.binder.AttributeSourceContainer;
import org.hibernate.metamodel.source.binder.ComponentAttributeSource;
import org.hibernate.metamodel.source.binder.ExplicitHibernateTypeSource;
import org.hibernate.metamodel.source.binder.MetaAttributeSource;
import org.hibernate.metamodel.source.binder.RelationalValueSource;
import org.hibernate.metamodel.source.binder.SingularAttributeNature;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLAnyElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLComponentElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLManyToManyElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLManyToOneElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLOneToManyElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLOneToOneElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLPropertyElement;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLTuplizerElement;

/**
 * @author Steve Ebersole
 */
public class ComponentAttributeSourceImpl implements ComponentAttributeSource {
	private final XMLComponentElement componentElement;
	private final AttributeSourceContainer parentContainer;

	private final Value<Class componentClassReference;
	private final String path;

	public ComponentAttributeSourceImpl(
			XMLComponentElement componentElement,
			AttributeSourceContainer parentContainer,
			LocalBindingContext bindingContext) {
		this.componentElement = componentElement;
		this.parentContainer = parentContainer;

		this.componentClassReference = bindingContext.makeClassReference(
				bindingContext.qualifyClassName( componentElement.getClazz() )
		);
		this.path = parentContainer.getPath() + '.' + componentElement.getName();
	}

	@Override
	public String getClassName() {
		return componentElement.getClazz();
	}

	@Override
	public Value<Class getClassReference() {
		return componentClassReference;
	}

	@Override
	public String getPath() {
		return path;
	}

	@Override
	public LocalBindingContext getLocalBindingContext() {
		return parentContainer.getLocalBindingContext();
	}

	@Override
	public String getParentReferenceAttributeName() {
		return componentElement.getParent() == null ? null : componentElement.getParent().getName();
	}

	@Override
	public String getExplicitTuplizerClassName() {
		if ( componentElement.getTuplizer() == null ) {
			return null;
		}
		final EntityMode entityMode = StringHelper.isEmpty( componentElement.getClazz() ) ? EntityMode.MAP : EntityMode.POJO;
		for ( XMLTuplizerElement tuplizerElement : componentElement.getTuplizer() ) {
			if ( entityMode == EntityMode.parse( tuplizerElement.getEntityMode() ) ) {
				return tuplizerElement.getClazz();
			}
		}
		return null;
	}

	@Override
	public Iterable<AttributeSource> attributeSources() {
		List<AttributeSource> attributeSources = new ArrayList();
		for ( Object attributeElement : componentElement.getPropertyOrManyToOneOrOneToOne() ) {
			if ( XMLPropertyElement.class.isInstance( attributeElement ) ) {
				attributeSources.add(
						new PropertyAttributeSourceImpl(
								XMLPropertyElement.class.cast( attributeElement ),
								getLocalBindingContext()
						)
				);
			}
			else if ( XMLComponentElement.class.isInstance( attributeElement ) ) {
				attributeSources.add(
						new ComponentAttributeSourceImpl(
								(XMLComponentElement) attributeElement,
								this,
								getLocalBindingContext()
						)
				);
			}
			else if ( XMLManyToOneElement.class.isInstance( attributeElement ) ) {
				attributeSources.add(
						new ManyToOneAttributeSourceImpl(
								XMLManyToOneElement.class.cast( attributeElement ),
								getLocalBindingContext()
						)
				);
			}
			else if ( XMLOneToOneElement.class.isInstance( attributeElement ) ) {
				// todo : implement
			}
			else if ( XMLAnyElement.class.isInstance( attributeElement ) ) {
				// todo : implement
			}
			else if ( XMLOneToManyElement.class.isInstance( attributeElement ) ) {
				// todo : implement
			}
			else if ( XMLManyToManyElement.class.isInstance( attributeElement ) ) {
				// todo : implement
			}
		}
		return attributeSources;
	}

	@Override
	public boolean isVirtualAttribute() {
		return false;
	}

	@Override
	public SingularAttributeNature getNature() {
		return SingularAttributeNature.COMPONENT;
	}

	@Override
	public ExplicitHibernateTypeSource getTypeInformation() {
		// <component/> does not support type information.
		return null;
	}

	@Override
	public String getName() {
		return componentElement.getName();
	}

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

	@Override
	public String getPropertyAccessorName() {
		return componentElement.getAccess();
	}

	@Override
	public boolean isInsertable() {
		return componentElement.isInsert();
	}

	@Override
	public boolean isUpdatable() {
		return componentElement.isUpdate();
	}

	@Override
	public PropertyGeneration getGeneration() {
		// todo : is this correct here?
		return null;
	}

	@Override
	public boolean isLazy() {
		return componentElement.isLazy();
	}

	@Override
	public boolean isIncludedInOptimisticLocking() {
		return componentElement.isOptimisticLock();
	}

	@Override
	public Iterable<MetaAttributeSource> metaAttributes() {
		return Helper.buildMetaAttributeSources( componentElement.getMeta() );
	}

	@Override
	public boolean areValuesIncludedInInsertByDefault() {
		return isInsertable();
	}

	@Override
	public boolean areValuesIncludedInUpdateByDefault() {
		return isUpdatable();
	}

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

	@Override
	public List<RelationalValueSource> relationalValueSources() {
		// none, they are defined on the simple sub-attributes
		return null;
	}
}