Hibernate example source code file (AnnotationBindingContextImpl.java)

This example Hibernate source code file (AnnotationBindingContextImpl.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

class, hashmap, index, map, memberresolver, override, override, resolvedtype, resolvedtype, type, type, typeresolver, util, value, value

The Hibernate AnnotationBindingContextImpl.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.annotations;

import java.util.HashMap;
import java.util.Map;

import com.fasterxml.classmate.MemberResolver;
import com.fasterxml.classmate.ResolvedType;
import com.fasterxml.classmate.ResolvedTypeWithMembers;
import com.fasterxml.classmate.TypeResolver;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.jandex.Index;

import org.hibernate.cfg.NamingStrategy;
import org.hibernate.internal.util.Value;
import org.hibernate.metamodel.domain.Type;
import org.hibernate.metamodel.source.MappingDefaults;
import org.hibernate.metamodel.source.MetadataImplementor;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.classloading.spi.ClassLoaderService;

/**
 * @author Steve Ebersole
 */
public class AnnotationBindingContextImpl implements AnnotationBindingContext {
	private final MetadataImplementor metadata;
	private final Value<ClassLoaderService> classLoaderService;
	private final Index index;
	private final TypeResolver typeResolver = new TypeResolver();
	private final Map<Class resolvedTypeCache = new HashMap, ResolvedType>();

	public AnnotationBindingContextImpl(MetadataImplementor metadata, Index index) {
		this.metadata = metadata;
		this.classLoaderService = new Value<ClassLoaderService>(
				new Value.DeferredInitializer<ClassLoaderService>() {
					@Override
					public ClassLoaderService initialize() {
						return AnnotationBindingContextImpl.this.metadata
								.getServiceRegistry()
								.getService( ClassLoaderService.class );
					}
				}
		);
		this.index = index;
	}

	@Override
	public Index getIndex() {
		return index;
	}

	@Override
	public ClassInfo getClassInfo(String name) {
		DotName dotName = DotName.createSimple( name );
		return index.getClassByName( dotName );
	}

	@Override
	public void resolveAllTypes(String className) {
		// the resolved type for the top level class in the hierarchy
		Class<?> clazz = classLoaderService.getValue().classForName( className );
		ResolvedType resolvedType = typeResolver.resolve( clazz );
		while ( resolvedType != null ) {
			// todo - check whether there is already something in the map
			resolvedTypeCache.put( clazz, resolvedType );
			resolvedType = resolvedType.getParentClass();
			if ( resolvedType != null ) {
				clazz = resolvedType.getErasedType();
			}
		}
	}

	@Override
	public ResolvedType getResolvedType(Class<?> clazz) {
		// todo - error handling
		return resolvedTypeCache.get( clazz );
	}

	@Override
	public ResolvedTypeWithMembers resolveMemberTypes(ResolvedType type) {
		// todo : is there a reason we create this resolver every time?
		MemberResolver memberResolver = new MemberResolver( typeResolver );
		return memberResolver.resolve( type, null, null );
	}

	@Override
	public ServiceRegistry getServiceRegistry() {
		return getMetadataImplementor().getServiceRegistry();
	}

	@Override
	public NamingStrategy getNamingStrategy() {
		return metadata.getNamingStrategy();
	}

	@Override
	public MappingDefaults getMappingDefaults() {
		return metadata.getMappingDefaults();
	}

	@Override
	public MetadataImplementor getMetadataImplementor() {
		return metadata;
	}

	@Override
	public <T> Class locateClassByName(String name) {
		return classLoaderService.getValue().classForName( name );
	}

	private Map<String, Type> nameToJavaTypeMap = new HashMap();

	@Override
	public Type makeJavaType(String className) {
		Type javaType = nameToJavaTypeMap.get( className );
		if ( javaType == null ) {
			javaType = metadata.makeJavaType( className );
			nameToJavaTypeMap.put( className, javaType );
		}
		return javaType;
	}

	@Override
	public Value<Class makeClassReference(String className) {
		return new Value<Class( locateClassByName( className ) );
	}

	@Override
	public String qualifyClassName(String name) {
		return name;
	}

	@Override
	public boolean isGloballyQuotedIdentifiers() {
		return metadata.isGloballyQuotedIdentifiers();
	}

}