is there a possibility to insert several instances of a XML document, which are in a string, for example, without creating TXMLObject instances for each XML document?
this is not possible with the Tamino API for Java.
You have to handle the XML documents one by one.
May be the Java Loader or the Tamino Data Loader can be useful for you. Tamino provides these tools for loading large amounts of XML data into a Tamino database from an external source.