/*
 * 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 <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.tuple.component;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.boot.spi.BootstrapContext;
import org.hibernate.boot.spi.MetadataBuildingOptions;
import org.hibernate.cfg.Environment;
import org.hibernate.engine.config.spi.ConfigurationService;
import org.hibernate.internal.util.config.ConfigurationHelper;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.Property;
import org.hibernate.tuple.PropertyFactory;
import org.hibernate.tuple.StandardProperty;

Centralizes metamodel information about a component.
Author:Steve Ebersole
/** * Centralizes metamodel information about a component. * * @author Steve Ebersole */
public class ComponentMetamodel implements Serializable { // TODO : will need reference to session factory to fully complete HHH-1907 private final String role; private final boolean isKey; private final StandardProperty[] properties; private final EntityMode entityMode; private final ComponentTuplizer componentTuplizer; // cached for efficiency... private final int propertySpan; private final Map propertyIndexes = new HashMap(); private final boolean createEmptyCompositesEnabled;
Deprecated:Use ComponentMetamodel(Component, BootstrapContext) instead.
/** * @deprecated Use {@link ComponentMetamodel#ComponentMetamodel(Component, BootstrapContext)} instead. */
@Deprecated public ComponentMetamodel(Component component, MetadataBuildingOptions metadataBuildingOptions) { this( component, new ComponentTuplizerFactory( metadataBuildingOptions ) ); } public ComponentMetamodel(Component component, BootstrapContext bootstrapContext) { this( component, new ComponentTuplizerFactory( bootstrapContext ) ); } private ComponentMetamodel(Component component, ComponentTuplizerFactory componentTuplizerFactory){ this.role = component.getRoleName(); this.isKey = component.isKey(); propertySpan = component.getPropertySpan(); properties = new StandardProperty[propertySpan]; Iterator itr = component.getPropertyIterator(); int i = 0; while ( itr.hasNext() ) { Property property = ( Property ) itr.next(); properties[i] = PropertyFactory.buildStandardProperty( property, false ); propertyIndexes.put( property.getName(), i ); i++; } entityMode = component.hasPojoRepresentation() ? EntityMode.POJO : EntityMode.MAP; // todo : move this to SF per HHH-3517; also see HHH-1907 and ComponentMetamodel final String tuplizerClassName = component.getTuplizerImplClassName( entityMode ); this.componentTuplizer = tuplizerClassName == null ? componentTuplizerFactory.constructDefaultTuplizer( entityMode, component ) : componentTuplizerFactory.constructTuplizer( tuplizerClassName, component ); final ConfigurationService cs = component.getMetadata().getMetadataBuildingOptions().getServiceRegistry() .getService(ConfigurationService.class); this.createEmptyCompositesEnabled = ConfigurationHelper.getBoolean( Environment.CREATE_EMPTY_COMPOSITES_ENABLED, cs.getSettings(), false ); } public boolean isKey() { return isKey; } public int getPropertySpan() { return propertySpan; } public StandardProperty[] getProperties() { return properties; } public StandardProperty getProperty(int index) { if ( index < 0 || index >= propertySpan ) { throw new IllegalArgumentException( "illegal index value for component property access [request=" + index + ", span=" + propertySpan + "]" ); } return properties[index]; } public int getPropertyIndex(String propertyName) { Integer index = ( Integer ) propertyIndexes.get( propertyName ); if ( index == null ) { throw new HibernateException( "component does not contain such a property [" + propertyName + "]" ); } return index; } public StandardProperty getProperty(String propertyName) { return getProperty( getPropertyIndex( propertyName ) ); } public EntityMode getEntityMode() { return entityMode; } public ComponentTuplizer getComponentTuplizer() { return componentTuplizer; } public boolean isCreateEmptyCompositesEnabled() { return createEmptyCompositesEnabled; } }