Optimization of memory usage by integration flows

A system, comprising:

• a processor for processing data associated with an integration flow comprising a sequence of nodes, and memory for storing data associated with the integration flow, wherein the processor is configured to:
• receive metadata associated with the integration flow, the metadata identifying data in one or more data objects used by the nodes of the integration flow;
• receive, in response to initiation of the integration flow, an input data object;
• extract, from the input data object, initial context data for the integration flow based on the metadata;
• and
• process the context data at each of the nodes of the integration flow, wherein one or more of the nodes adds data from its output data object to the context data based on the metadata;
• and
• discard remaining data from the output data objects of one or more of the nodes which was not added to the context data based on the metadata.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the program instructions are executable by a processor to cause the processor to:

• receive metadata associated with an integration flow comprising a sequence of nodes, the metadata identifying data in one or more data objects used by the nodes of the integration flow;
• receive, in response to initiation of the integration flow, an input data object;
• extract, from the input data object, initial context data for the integration flow based on the metadata, and
• process the context data at each of the nodes of the integration flow, wherein one or more of the nodes adds data from its output data object to the context data based on the metadata;
• and
• discard remaining data from the output data objects of one or more of the nodes which was not added to the context data based on the metadata.