System and method for handling backout processing during capture of changed data in an enterprise computer system
First Claim
1. A method for handling backout processing during capture of change data in an enterprise computer system, the method comprising:
- capturing a plurality of changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the plurality of changes;
receiving one or more set calls from the application during said receiving said plurality of changes, wherein each of said set calls operates to establish a point in time for backing out subsequent changes;
creating a corresponding sub unit of work value for each of said one or more received set calls, wherein said capturing includes storing changes received after a respective one of said set calls including the corresponding one of said sub unit of work values;
receiving at least one backout call from the application during said receiving said plurality of changes, wherein the at least one backout call corresponds to one of said set calls, wherein the at least one backout call is operable to back out changes made since the corresponding set call was received;
aborting said changes made since the corresponding set call was received in response to receiving the at least one backout call.
18 Assignments
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Accused Products
Abstract
An enterprise data movement (EDM) system and method for more intelligently recording changes made to an IMS database. According to the present invention, when an application issues SETS/SETU and ROLS calls during the application'"'"'s unit of work, the EDM system operates to create sub-units of work for identifying changes which correspond to the SETS/SETU and ROLS calls. This allows the EDM system to individually record or monitor the status of these changes, and either discard and/or commit the individual changes within that total application'"'"'s unit of work, depending on the SETS/SETU and ROLS calls received.
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Citations
64 Claims
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1. A method for handling backout processing during capture of change data in an enterprise computer system, the method comprising:
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capturing a plurality of changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the plurality of changes; receiving one or more set calls from the application during said receiving said plurality of changes, wherein each of said set calls operates to establish a point in time for backing out subsequent changes; creating a corresponding sub unit of work value for each of said one or more received set calls, wherein said capturing includes storing changes received after a respective one of said set calls including the corresponding one of said sub unit of work values; receiving at least one backout call from the application during said receiving said plurality of changes, wherein the at least one backout call corresponds to one of said set calls, wherein the at least one backout call is operable to back out changes made since the corresponding set call was received; aborting said changes made since the corresponding set call was received in response to receiving the at least one backout call. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for handling backout processing during capture of change data in an enterprise computer system, the method comprising:
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receiving a first set call from the application, wherein said first set call operates to establish a point in time for backing out subsequent changes; receiving one or more first changes made to a source database, wherein the first changes are received after receiving the first set call; storing said one or more first changes with a first sub unit of work value in response to receiving said one or more first changes, wherein said first sub unit of work value is useable to monitor a commit or abort of said one or more first changes. - View Dependent Claims (14, 15, 16, 17)
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18. A method for handling backout processing during capture of change data in an enterprise computer system, the method comprising:
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receiving one or more first changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the changes capturing said one or more first changes made to the source database; receiving a set call from the application, wherein said set call operates to establish a point in time for backing out subsequent changes; receiving one or more second changes made to a source database, wherein the second changes are received after receiving the set call; storing said one or more second changes with a subset unit of work value in response to receiving said one or more second changes after receiving the set call; receiving a backout call from the application, wherein said backout call operates to backout changes made since said set call was received; aborting said one or more second changes in response to receiving said backout call, wherein said aborting includes analyzing received changes and aborting said second changes having said subset unit of work value.
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19. A memory media which stores program instructions for handling backout processing during capture of change data in an enterprise computer system, wherein the program instructions implement:
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capturing a plurality of changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the plurality of changes; receiving one or more set calls from the application during said receiving said plurality of changes, wherein each of said set calls operates to establish a point in time for backing out subsequent changes; creating a corresponding sub unit of work value for each of said one or more received set calls, wherein said capturing includes storing changes received after a respective one of said set calls including the corresponding one of said sub unit of work values; receiving at least one backout call from the application during said receiving said plurality of changes, wherein the at least one backout call corresponds to one of said set calls, wherein the at least one backout call is operable to back out changes made since the corresponding set call was received; aborting said changes made since the corresponding set call was received in response to receiving the at least one backout call. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A memory media which stores program instructions for handling backout processing during capture of change data in an enterprise computer system, wherein the program instructions implement:
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receiving a first set call from the application, wherein said first set call operates to establish a point in time for backing out subsequent changes; receiving one or more first changes made to a source database, wherein the first changes are received after receiving the first set call; storing said one or more first changes with a first sub unit of work value in response to receiving said one or more first changes, wherein said first sub unit of work value is useable to monitor a commit or abort of said one or more first changes. - View Dependent Claims (32, 33, 34, 35)
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36. A memory media which stores program instructions for handling backout processing during capture of change data in an enterprise computer system, wherein the program instructions implement:
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receiving one or more first changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the changes capturing said one or more first changes made to the source database; receiving a set call from the application, wherein said set call operates to establish a point in time for backing out subsequent changes; receiving one or more second changes made to a source database, wherein the second changes are received after receiving the set call; storing said one or more second changes with a subset unit of work value in response to receiving said one or more second changes after receiving the set call; receiving a backout call from the application, wherein said backout call operates to backout changes made since said set call was received; aborting said one or more second changes in response to receiving said backout call, wherein said aborting includes analyzing received changes and aborting said second changes having said subset unit of work value.
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37. A method for propagating data in an enterprise computer system, the method comprising:
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capturing a plurality of changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the plurality of changes; propagating each of said plurality of changes to a target database, wherein each change includes a unit of work identifier; receiving one or more set calls from the application during said capturing said plurality of changes, wherein each of said set calls operates to establish a point in time for backing out subsequent changes; and creating a corresponding sub unit of work value for each of said one or more received set calls; wherein said propagating includes propagating changes received after a respective one of said set calls including the corresponding one of said sub unit of work values. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A memory media comprising program instructions for propagating data in an enterprise computer system, wherein the program instructions are executable to implement:
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capturing a plurality of changes made to a source database, wherein the changes are made by an application, wherein the application maintains a unit of work (UOW) for the plurality of changes; propagating each of said plurality of changes to a target database, wherein each change includes a unit of work identifier; receiving one or more set calls from the application during said capturing said plurality of changes, wherein each of said set calls operates to establish a point in time for backing out subsequent changes; creating a corresponding sub unit of work value for each of said one or more received set calls; wherein said propagating includes propagating changes received after a respective one of said set calls including the corresponding one of said sub unit of work values. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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Specification