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Hibernate example source code file (BasicAttributeBinding.java)

This example Hibernate source code file (BasicAttributeBinding.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

basicattributebinding, identifiergenerator, idgenerator, mappingexception, metaattributecontext, override, override, properties, properties, propertygeneration, simplevalue, simplevalue, string, string, util

The Hibernate BasicAttributeBinding.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.binding;

import java.util.Properties;

import org.hibernate.MappingException;
import org.hibernate.id.IdentifierGenerator;
import org.hibernate.id.PersistentIdentifierGenerator;
import org.hibernate.id.factory.IdentifierGeneratorFactory;
import org.hibernate.mapping.PropertyGeneration;
import org.hibernate.metamodel.domain.SingularAttribute;
import org.hibernate.metamodel.relational.Column;
import org.hibernate.metamodel.relational.Schema;
import org.hibernate.metamodel.relational.SimpleValue;
import org.hibernate.metamodel.source.MetaAttributeContext;

/**
 * TODO : javadoc
 *
 * @author Steve Ebersole
 */
public class BasicAttributeBinding
		extends AbstractSingularAttributeBinding
		implements  KeyValueBinding {

	private String unsavedValue;
	private PropertyGeneration generation;
	private boolean includedInOptimisticLocking;

	private boolean forceNonNullable;
	private boolean forceUnique;
	private boolean keyCascadeDeleteEnabled;

	private MetaAttributeContext metaAttributeContext;

	BasicAttributeBinding(
			AttributeBindingContainer container,
			SingularAttribute attribute,
			boolean forceNonNullable,
			boolean forceUnique) {
		super( container, attribute );
		this.forceNonNullable = forceNonNullable;
		this.forceUnique = forceUnique;
	}

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

	@Override
	public String getUnsavedValue() {
		return unsavedValue;
	}

	public void setUnsavedValue(String unsavedValue) {
		this.unsavedValue = unsavedValue;
	}

	@Override
	public PropertyGeneration getGeneration() {
		return generation;
	}

	public void setGeneration(PropertyGeneration generation) {
		this.generation = generation;
	}

	public boolean isIncludedInOptimisticLocking() {
		return includedInOptimisticLocking;
	}

	public void setIncludedInOptimisticLocking(boolean includedInOptimisticLocking) {
		this.includedInOptimisticLocking = includedInOptimisticLocking;
	}

	@Override
	public boolean isKeyCascadeDeleteEnabled() {
		return keyCascadeDeleteEnabled;
	}

	public void setKeyCascadeDeleteEnabled(boolean keyCascadeDeleteEnabled) {
		this.keyCascadeDeleteEnabled = keyCascadeDeleteEnabled;
	}

	public boolean forceNonNullable() {
		return forceNonNullable;
	}

	public boolean forceUnique() {
		return forceUnique;
	}

	public MetaAttributeContext getMetaAttributeContext() {
		return metaAttributeContext;
	}

	public void setMetaAttributeContext(MetaAttributeContext metaAttributeContext) {
		this.metaAttributeContext = metaAttributeContext;
	}

	IdentifierGenerator createIdentifierGenerator(
			IdGenerator idGenerator,
			IdentifierGeneratorFactory identifierGeneratorFactory,
			Properties properties) {
		Properties params = new Properties();
		params.putAll( properties );

		// use the schema/catalog specified by getValue().getTable() - but note that
		// if the schema/catalog were specified as params, they will already be initialized and
		//will override the values set here (they are in idGenerator.getParameters().)
		Schema schema = getValue().getTable().getSchema();
		if ( schema != null ) {
			if ( schema.getName().getSchema() != null ) {
				params.setProperty( PersistentIdentifierGenerator.SCHEMA, schema.getName().getSchema().getName() );
			}
			if ( schema.getName().getCatalog() != null ) {
				params.setProperty( PersistentIdentifierGenerator.CATALOG, schema.getName().getCatalog().getName() );
			}
		}

		// TODO: not sure how this works for collection IDs...
		//pass the entity-name, if not a collection-id
		//if ( rootClass!=null) {
			params.setProperty( IdentifierGenerator.ENTITY_NAME, getContainer().seekEntityBinding().getEntity().getName() );
		//}

		//init the table here instead of earlier, so that we can get a quoted table name
		//TODO: would it be better to simply pass the qualified table name, instead of
		//      splitting it up into schema/catalog/table names
		String tableName = getValue().getTable().getQualifiedName( identifierGeneratorFactory.getDialect() );
		params.setProperty( PersistentIdentifierGenerator.TABLE, tableName );

		//pass the column name (a generated id almost always has a single column)
		if ( getSimpleValueSpan() > 1 ) {
			throw new MappingException(
					"A SimpleAttributeBinding used for an identifier has more than 1 Value: " + getAttribute().getName()
			);
		}
		SimpleValue simpleValue = (SimpleValue) getValue();
		if ( !Column.class.isInstance( simpleValue ) ) {
			throw new MappingException(
					"Cannot create an IdentifierGenerator because the value is not a column: " +
							simpleValue.toLoggableString()
			);
		}
		params.setProperty(
				PersistentIdentifierGenerator.PK,
				( (Column) simpleValue ).getColumnName().encloseInQuotesIfQuoted(
						identifierGeneratorFactory.getDialect()
				)
		);

		// TODO: is this stuff necessary for SimpleValue???
		//if (rootClass!=null) {
		//	StringBuffer tables = new StringBuffer();
		//	Iterator iter = rootClass.getIdentityTables().iterator();
		//	while ( iter.hasNext() ) {
		//		Table table= (Table) iter.next();
		//		tables.append( table.getQuotedName(dialect) );
		//		if ( iter.hasNext() ) tables.append(", ");
		//	}
		//	params.setProperty( PersistentIdentifierGenerator.TABLES, tables.toString() );
		//}
		//else {
		params.setProperty( PersistentIdentifierGenerator.TABLES, tableName );
		//}

		params.putAll( idGenerator.getParameters() );

		return identifierGeneratorFactory.createIdentifierGenerator(
				idGenerator.getStrategy(), getHibernateTypeDescriptor().getResolvedTypeMapping(), params
		);
	}
}

Other Hibernate examples (source code examples)

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