presto-main/src/main/java/io/prestosql/metadata/QualifiedObjectName.java/QualifiedObjectName/QualifiedObjectName
class QualifiedObjectName:    public QualifiedObjectName(String catalogName, String schemaName, String objectName)
    {
        checkObjectName(catalogName, schemaName, objectName);
        this.catalogName = catalogName;
        this.schemaName = schemaName;
        this.objectName = objectName;
    }