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Web Services
Creating ABL Clients to Consume OpenEdge SOAP Web Services : Handling SOAP Message Headers in ABL : Managing memory for SOAP headers : Memory for the SOAP header object model and DOM
 
Memory for the SOAP header object model and DOM
The following table summarizes the available ABL elements and how they can help you to manage memory for SOAP headers.
Table 31. ABL to manage object memory for SOAP headers
ABL element
Applied to object
Deletes the ABL object
Deletes all underlying XML DOM objects
Setting the lDeleteOnDoneOUTPUT parameter of the request header handler to TRUE (see the Defining header handlers
SOAP header object
Yes
Yes
DELETE OBJECT statement
SOAP header object
Yes
Yes
X-document object
Yes
Yes
SOAP header-entryref object
Yes
No
X-noderef object
Yes
No
DELETE-HEADER-ENTRY( ) method
SOAP header-entryref object
No
Yes
DELETE-NODE( ) method
X-noderef object
No
Yes1
1 This includes any child sub-trees of the deleted X-noderef object.

Caution: Be sure that you always delete the underlying XML for a SOAP header-entryref object before you delete the SOAP header-entryref object itself. If you lose all reference to the underlying XML before deleting it, its memory becomes lost to your application. If this occurs as part of an iterative process, it represents a memory leak that could cause your application to crash.