import org.hibernate.type.CustomType; //导入依赖的package包/类
/**
 * Returns the {@link GridType} representing the {@link Type}.
 *
 * @param type the Type that needs conversion
 *
 * @return the corresponding GridType
 */
public GridType convert(Type type) {

	if ( type instanceof CustomType ) {
		CustomType customType = (CustomType) type;
		if ( customType.getUserType() instanceof EnumType ) {
			EnumType enumType = (EnumType) customType.getUserType();
			return ( new RedisHashEnumType( customType, enumType ) );
		}
	}

	if ( type instanceof SerializableToBlobType ) {
		return new SerializableAsStringType( ( (SerializableToBlobType) type ).getJavaTypeDescriptor() );
	}

	return conversionMap.get( type );
}
 

import org.hibernate.type.CustomType; //导入依赖的package包/类
public RedisHashEnumType(CustomType customType, org.hibernate.type.EnumType enumType) {
	super( customType, enumType );
}
 

import org.hibernate.type.CustomType; //导入依赖的package包/类
/**
 * Extract the value from the result set (which is assumed to already have been positioned to the apopriate row)
 * and wrp it in the appropriate Java numeric type.
 *
 * @param rs The result set from which to extract the value.
 * @param identifier The name of the identifier column
 * @param type The expected type of the value.
 *
 * @return The extracted value.
 *
 * @throws SQLException Indicates problems access the result set
 * @throws IdentifierGenerationException Indicates an unknown type.
 */
public static Serializable get(ResultSet rs, String identifier, Type type) throws SQLException, IdentifierGenerationException {
	if ( ResultSetIdentifierConsumer.class.isInstance( type ) ) {
		return ( ( ResultSetIdentifierConsumer ) type ).consumeIdentifier( rs );
	}
	if ( CustomType.class.isInstance( type ) ) {
		final CustomType customType = (CustomType) type;
		if ( ResultSetIdentifierConsumer.class.isInstance( customType.getUserType() ) ) {
			return ( (ResultSetIdentifierConsumer) customType.getUserType() ).consumeIdentifier( rs );
		}
	}

	Class clazz = type.getReturnedClass();
	if (rs.getMetaData().getColumnCount() == 1) {
		if ( clazz == Long.class ) {
			return rs.getLong( 1 );
		}
		else if ( clazz == Integer.class ) {
			return rs.getInt( 1 );
		}
		else if ( clazz == Short.class ) {
			return rs.getShort( 1 );
		}
		else if ( clazz == String.class ) {
			return rs.getString( 1 );
		}
		else if ( clazz == BigInteger.class ) {
			return rs.getBigDecimal( 1 ).setScale( 0, BigDecimal.ROUND_UNNECESSARY ).toBigInteger();
		}
		else if ( clazz == BigDecimal.class ) {
			return rs.getBigDecimal( 1 ).setScale( 0, BigDecimal.ROUND_UNNECESSARY );
		}
		else {
			throw new IdentifierGenerationException(
					"unrecognized id type : " + type.getName() + " -> " + clazz.getName()
			);
		}
	}
	else {
		if ( clazz == Long.class ) {
			return rs.getLong(identifier);
		}
		else if ( clazz == Integer.class ) {
			return rs.getInt(identifier);
		}
		else if ( clazz == Short.class ) {
			return rs.getShort(identifier);
		}
		else if ( clazz == String.class ) {
			return rs.getString(identifier);
		}
		else if ( clazz == BigInteger.class ) {
			return rs.getBigDecimal(identifier).setScale( 0, BigDecimal.ROUND_UNNECESSARY ).toBigInteger();
		}
		else if ( clazz == BigDecimal.class ) {
			return rs.getBigDecimal(identifier).setScale( 0, BigDecimal.ROUND_UNNECESSARY );
		}
		else {
			throw new IdentifierGenerationException(
					"unrecognized id type : " + type.getName() + " -> " + clazz.getName()
			);
		}
	}
}