The XML documents exchanged by CMS components via the XML Interface are called Payloads. The
cm-payload element is the root element of all request and response documents:
<!ELEMENT cm-payload (cm-header, (cm-response+ | cm-request+))> <!ATTLIST cm-payload payload-id CDATA #REQUIRED timestamp CDATA #REQUIRED cm.version CDATA #REQUIRED >
The attributes of
cm-payload elements have the following meanings:
payload-idis generated by an algorithm.
In a request a client indicates which version of the XML Interface protocol it is using by specifying a value for
The Content Management Server supports – in addition to the current version of the protocol – all versions which were previously valid. If the client is using one of these versions, the server creates a response payload in this version. Otherwise, it responds with an error message which indicates the protocol incompatibility. The server creates this message in its current version of the XML Interface protocol.