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Hibernate O/RM implementation of the Jakarta Persistence specification

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/*
 * 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.query.sqm.tree.domain;

import org.hibernate.metamodel.model.domain.EntityDomainType;
import org.hibernate.metamodel.model.domain.SingularPersistentAttribute;
import org.hibernate.query.hql.spi.SqmCreationProcessingState;
import org.hibernate.query.sqm.tree.from.SqmAttributeJoin;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;

/**
 * @author Steve Ebersole
 */
public class SqmTreatedSingularJoin extends SqmSingularJoin implements SqmTreatedPath {
	private final SqmSingularJoin wrappedPath;
	private final EntityDomainType treatTarget;

	@SuppressWarnings("WeakerAccess")
	public SqmTreatedSingularJoin(
			SqmSingularJoin wrappedPath,
			EntityDomainType treatTarget,
			String alias) {
		//noinspection unchecked
		super(
				wrappedPath.getLhs(),
				(SingularPersistentAttribute) wrappedPath.getAttribute(),
				alias,
				wrappedPath.getSqmJoinType(),
				wrappedPath.isFetched(),
				wrappedPath.nodeBuilder()
		);
		this.treatTarget = treatTarget;
		this.wrappedPath = wrappedPath;
	}

	@Override
	public SqmSingularJoin getWrappedPath() {
		return wrappedPath;
	}

	@Override
	public EntityDomainType getTreatTarget() {
		return treatTarget;
	}

	@Override
	@SuppressWarnings("unchecked")
	public SingularPersistentAttribute getReferencedPathSource() {
		return super.getReferencedPathSource();
	}

	@Override
	public JavaTypeDescriptor getJavaTypeDescriptor() {
		return treatTarget.getExpressableJavaTypeDescriptor();
	}

	@Override
	public SqmAttributeJoin makeCopy(SqmCreationProcessingState creationProcessingState) {
		//noinspection unchecked
		return new SqmTreatedSingularJoin( wrappedPath, treatTarget, getAlias() );
	}

	@Override
	public void appendHqlString(StringBuilder sb) {
		sb.append( "treat(" );
		wrappedPath.appendHqlString( sb );
		sb.append( " as " );
		sb.append( treatTarget.getName() );
		sb.append( ')' );
	}
}