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Hibernate example source code file (TimestampAttributeSourceImpl.java)

This example Hibernate source code file (TimestampAttributeSourceImpl.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

explicithibernatetypesource, explicithibernatetypesource, list, localbindingcontext, mappingexception, override, override, propertygeneration, propertygeneration, singularattributenature, string, string, timestampattributesourceimpl, util, value

The Hibernate TimestampAttributeSourceImpl.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.List;
import java.util.Map;

import org.hibernate.internal.util.Value;
import org.hibernate.mapping.PropertyGeneration;
import org.hibernate.metamodel.source.LocalBindingContext;
import org.hibernate.metamodel.source.MappingException;
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.binder.SingularAttributeSource;
import org.hibernate.metamodel.source.hbm.jaxb.mapping.XMLHibernateMapping;

/**
 * Implementation for {@code <timestamp/>} mappings
 *
 * @author Steve Ebersole
 */
class TimestampAttributeSourceImpl implements SingularAttributeSource {
	private final XMLHibernateMapping.XMLClass.XMLTimestamp timestampElement;
	private final LocalBindingContext bindingContext;
	private final List<RelationalValueSource> valueSources;

	TimestampAttributeSourceImpl(
			final XMLHibernateMapping.XMLClass.XMLTimestamp timestampElement,
			LocalBindingContext bindingContext) {
		this.timestampElement = timestampElement;
		this.bindingContext = bindingContext;
		this.valueSources = Helper.buildValueSources(
				new Helper.ValueSourcesAdapter() {
					@Override
					public String getColumnAttribute() {
						return timestampElement.getColumn();
					}

					@Override
					public String getFormulaAttribute() {
						return null;
					}

					@Override
					public List getColumnOrFormulaElements() {
						return null;
					}

					@Override
					public String getContainingTableName() {
						// by definition the version should come from the primary table of the root entity.
						return null;
					}

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

					@Override
					public boolean isIncludedInUpdateByDefault() {
						return true;
					}
				},
				bindingContext
		);
	}

	private final ExplicitHibernateTypeSource typeSource = new ExplicitHibernateTypeSource() {
		@Override
		public String getName() {
			return "db".equals( timestampElement.getSource() ) ? "dbtimestamp" : "timestamp";
		}

		@Override
		public Map<String, String> getParameters() {
			return null;
		}
	};

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

	@Override
	public ExplicitHibernateTypeSource getTypeInformation() {
		return typeSource;
	}

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

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

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

	private Value<PropertyGeneration> propertyGenerationValue = new Value(
			new Value.DeferredInitializer<PropertyGeneration>() {
				@Override
				public PropertyGeneration initialize() {
					final PropertyGeneration propertyGeneration = timestampElement.getGenerated() == null
							? PropertyGeneration.NEVER
							: PropertyGeneration.parse( timestampElement.getGenerated().value() );
					if ( propertyGeneration == PropertyGeneration.INSERT ) {
						throw new MappingException(
								"'generated' attribute cannot be 'insert' for versioning property",
								bindingContext.getOrigin()
						);
					}
					return propertyGeneration;
				}
			}
	);

	@Override
	public PropertyGeneration getGeneration() {
		return propertyGenerationValue.getValue();
	}

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

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

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

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

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

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

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

	@Override
	public List<RelationalValueSource> relationalValueSources() {
		return valueSources;
	}

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

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

Other Hibernate examples (source code examples)

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