Java Code Examples for org.hibernate.persister.entity.PropertyMapping#toType()

protected QueryableCollection getQueryableCollection(
		String entityName,
		String propertyName,
		SessionFactoryImplementor factory) throws HibernateException {
	final PropertyMapping ownerMapping = (PropertyMapping) factory.getEntityPersister( entityName );
	final Type type = ownerMapping.toType( propertyName );
	if ( !type.isCollectionType() ) {
		throw new MappingException(
				"Property path [" + entityName + "." + propertyName + "] does not reference a collection"
		);
	}

	final String role = ( (CollectionType) type ).getRole();
	try {
		return (QueryableCollection) factory.getCollectionPersister( role );
	}
	catch ( ClassCastException cce ) {
		throw new QueryException( "collection role is not queryable: " + role );
	}
	catch ( Exception e ) {
		throw new QueryException( "collection role not found: " + role );
	}
}
 

protected QueryableCollection getQueryableCollection(String entityName, String propertyName, SessionFactoryImplementor factory)
        throws HibernateException {
	PropertyMapping ownerMapping = ( PropertyMapping ) factory.getEntityPersister( entityName );
	Type type = ownerMapping.toType( propertyName );
	if ( !type.isCollectionType() ) {
		throw new MappingException(
		        "Property path [" + entityName + "." + propertyName + "] does not reference a collection"
		);
	}

	String role = ( ( CollectionType ) type ).getRole();
	try {
		return ( QueryableCollection ) factory.getCollectionPersister( role );
	}
	catch ( ClassCastException cce ) {
		throw new QueryException( "collection role is not queryable: " + role );
	}
	catch ( Exception e ) {
		throw new QueryException( "collection role not found: " + role );
	}
}
 

/**
 * Returns the type of a property, given it's name (the last part) and the full path.
 *
 * @param propertyName The last part of the full path to the property.
 * @return The type.
 * @0param propertyPath The full property path.
 */
public Type getPropertyType(String propertyName, String propertyPath) {
	checkInitialized();
	Type type = null;
	// If this is an entity and the property is the identifier property, then use getIdentifierType().
	//      Note that the propertyName.equals( propertyPath ) checks whether we have a component
	//      key reference, where the component class property name is the same as the
	//      entity id property name; if the two are not equal, this is the case and
	//      we'd need to "fall through" to using the property mapping.
	if ( persister != null && propertyName.equals( propertyPath ) && propertyName.equals( persister.getIdentifierPropertyName() ) ) {
		type = persister.getIdentifierType();
	}
	else {	// Otherwise, use the property mapping.
		PropertyMapping mapping = getPropertyMapping( propertyName );
		type = mapping.toType( propertyPath );
	}
	if ( type == null ) {
		throw new MappingException( "Property " + propertyName + " does not exist in " +
				( ( queryableCollection == null ) ? "class" : "collection" ) + " "
				+ ( ( queryableCollection == null ) ? fromElement.getClassName() : queryableCollection.getRole() ) );
	}
	return type;
}
 

/**
 * Returns the type of a property, given it's name (the last part) and the full path.
 *
 * @param propertyName The last part of the full path to the property.
 *
 * @return The type.
 *
 * @0param getPropertyPath The full property path.
 */
public Type getPropertyType(String propertyName, String propertyPath) {
	checkInitialized();
	Type type = null;
	// If this is an entity and the property is the identifier property, then use getIdentifierType().
	//      Note that the propertyName.equals( getPropertyPath ) checks whether we have a component
	//      key reference, where the component class property name is the same as the
	//      entity id property name; if the two are not equal, this is the case and
	//      we'd need to "fall through" to using the property mapping.
	if ( persister != null && propertyName.equals( propertyPath ) && propertyName.equals( persister.getIdentifierPropertyName() ) ) {
		type = persister.getIdentifierType();
	}
	else {    // Otherwise, use the property mapping.
		PropertyMapping mapping = getPropertyMapping( propertyName );
		type = mapping.toType( propertyPath );
	}
	if ( type == null ) {
		throw new MappingException(
				"Property " + propertyName + " does not exist in " +
						( ( queryableCollection == null ) ? "class" : "collection" ) + " "
						+ ( ( queryableCollection == null ) ?
						fromElement.getClassName() :
						queryableCollection.getRole() )
		);
	}
	return type;
}
 

public CollectionPropertyReference getCollectionPropertyReference(final String propertyName) {
	if ( queryableCollection == null ) {
		throw new QueryException( "Not a collection reference" );
	}

	final PropertyMapping collectionPropertyMapping;

	if ( queryableCollection.isManyToMany()
			&& queryableCollection.hasIndex()
			&& SPECIAL_MANY2MANY_TREATMENT_FUNCTION_NAMES.contains( propertyName ) ) {
		collectionPropertyMapping = new SpecialManyToManyCollectionPropertyMapping();
	}
	else if ( CollectionProperties.isCollectionProperty( propertyName ) ) {
		if ( this.collectionPropertyMapping == null ) {
			this.collectionPropertyMapping = new CollectionPropertyMapping( queryableCollection );
		}
		collectionPropertyMapping = this.collectionPropertyMapping;
	}
	else {
		collectionPropertyMapping = queryableCollection;
	}

	return new CollectionPropertyReference() {
		@Override
		public Type getType() {
			return collectionPropertyMapping.toType( propertyName );
		}

		@Override
		public String[] toColumns(final String tableAlias) {
			if ( propertyName.equalsIgnoreCase( "index" ) ) {
				return collectionPropertyMapping.toColumns( tableAlias, propertyName );
			}

			Map enabledFilters = fromElement.getWalker().getEnabledFilters();
			String subquery = CollectionSubqueryFactory.createCollectionSubquery(
					joinSequence.copyForCollectionProperty().setUseThetaStyle( true ),
					enabledFilters,
					collectionPropertyMapping.toColumns( tableAlias, propertyName )
			);
			LOG.debugf( "toColumns(%s,%s) : subquery = %s", tableAlias, propertyName, subquery );
			return new String[] {"(" + subquery + ")"};
		}
	};
}