JAVA virtual machine having integrated transaction management system and facility to query managed objects
View Patent ↗A computing system and method is a specification of user-defined business logic is provided as JAVA program instructions (or another programming language) which does not natively provide for specification of full transactionality, to accomplish a fully transactional application, including executed managed objects. The managed objects are persisted in a shared memory of the computing system, such that a scope of the objects is global to the fully transactional application. Furthermore, a catalog of the managed object is maintained. A query interface is provided for querying the managed objects, in order to receive a query from an application, to process the catalog, and to provide a result indication of at least one of the managed objects back to the querying application. Thus, for example, the application may process the managed objects that are indicated in the query result.
1. A computing system, comprising at least one computing device configured to execute computer program instructions to:
accomplish a fully transactional application defined at least in part using the Java programming language, including executing managed objects, wherein the managed objects are persisted in a shared memory of the computing system, such that a scope of the objects is global to the fully transactional application;
maintain a parametric mapping of the managed objects, the parametric mapping including at least one key for each of at least some of the cataloged managed objects with an index for the keys maintained in the shared memory such that high-performance queries may be performed against the managed objects using the index; and
receive from the application a parametric selection of the managed objects relative to the maintained catalog, and to provide to the application a result of the parametric selection that is a portion of the managed objects.
2. The computing system of claim 1 , wherein:
the at least one key for each of the managed objects in the catalog is defined using Java constructs with respect to a definition of that managed object.
3. The computing system of claim 2 , wherein:
the Java constructs include annotations, and an annotation to define a key captures information including at least one member from the group consisting of the name of the key, a list of one or more fields making up the key, a property indicating whether the key is unique, and/or a property indicating whether the key is ordered.
4. A computer-implemented method carried out by at least one computing device, the method comprising:
by the at least one computing device, executing computer program instructions to accomplish a fully transactional application defined at least in part using the Java programming language, including executing managed objects, wherein the managed objects are persisted in a shared memory of the computing system, such that a scope of the objects is global to the fully transactional application;
by the at least one computing device, executing computer program instructions to maintain a parametric mapping of the managed objects, the parametric mapping including at least one key for each of at least some of the cataloged managed objects with an index for the keys maintained in the shared memory such that high-performance queries may be performed against the managed objects using the index; and
by the at least one computing device, executing computer program instructions to receive from the application a parametric selection of the managed objects relative to a maintained catalog, and to provide to the application a result of the parametric selection that is a portion of the managed objects.
5. The computer-implemented method of claim 4 , wherein:
the at least one key for each of the managed objects in the catalog is defined using Java constructs with respect to a definition of that managed object.
6. The computer-implemented method of claim 5 , wherein:
the Java constructs include annotations and an annotation to define a key captures information including at least one member from the group consisting of the name of the key, a list of one or more fields making up the key, a property indicating whether the key is unique, and/or a property indicating whether the key is ordered.
7. A computing system, comprising at least one computing device configured to execute computer program instructions to:
accomplish a fully transactional application defined at least in part using the Java programming language, including executing managed objects, wherein the managed objects are persisted in a shared memory of the computing system, such that a scope of the objects is global to the fully transactional application;
maintain a catalog of the managed objects:
the catalog of managed objects includes at least one key for each of the cataloged managed objects, the parametric mapping including at least one key for each of at least some of the cataloged managed objects with an index for the keys maintained in the shared memory such that high-performance queries may be performed against the managed objects using the index, the at least one key for each of the managed objects in the catalog is defined using Java constructs with respect to a definition of that managed object; and
provide a query interface for querying the managed objects, in order to receive a query from an application, to process the catalog including processing the keys included in the catalog, and to provide a result indication of at least one of the managed objects back to the querying application.
8. The computing system of claim 7 , wherein:
the Java constructs include annotations.
9. The computing system of claim 7 , wherein:
the catalog of managed objects is an index of the keys.
10. The computing system of claim 7 , wherein:
at least some of the keys are defined to be unique keys and at least some of the keys are defined to be ordered keys.
11. The computing system of claim 7 , wherein:
the query interface includes at least one class via which to define key name/value pairs.
12. The computing system of claim 7 , wherein:
the query interface includes at last one class via which to instantiate a query definition and execution.
13. The computing system of claim 7 , wherein:
the catalog is configured such that update transactions to the catalog are transactionally isolated from other transactions of the computing system.
14. The computing system of claim 7 , wherein:
the query interface includes a mechanism to atomically select a managed object if the managed object exists and, if the managed object does not exist, create an instance of the managed object.
15. A computer-implemented method carried out by at least one computing device, the method comprising:
by the at least one computing device, executing computer program instructions to accomplish a fully transactional application defined at least in part using the Java programming language, including executing managed objects, wherein the managed objects are persisted in a shared memory of the computing system, such that a scope of the objects is global to the fully transactional application;
by the at least one computing device, executing computer program instructions to maintain a catalog of the managed objects the catalog of managed objects includes at least one key for each of the cataloged managed objects with an index maintained in shared memory for the keys such that high-performance queries may be performed against the managed objects using the index; and
by the at least one computing device, executing computer program instructions to provide a query interface for querying the managed objects, in order to receive a query from an application, to process the catalog, and to provide a result indication of at least one of the managed objects back to the querying application.
16. The computer-implemented method of claim 15 , wherein:
the at least one key for each of the managed objects in the catalog is defined using Java constructs with respect to a definition of that managed object.
17. The computer-implemented method of claim 16 , wherein:
the Java constructs include annotations and an annotation to define a key captures information including at least one member from the group consisting of the name of the key, a list of one or more fields making up the key, a property indicating whether the key is unique, and/or a property indicating whether the key is ordered.
18. The computer-implemented method of claim 16 , wherein:
the catalog of managed objects is an index of the keys.
19. The computer-implemented method of claim 16 , wherein:
at least some of the keys are defined to be unique keys and at least some of the keys are defined to be ordered keys.
20. The computer-implemented method of claim 16 , wherein:
the query interface includes at least one class via which to define key name/value pairs.
21. The computer-implemented method of claim 15 , wherein:
the query interface includes at last one class via which to instantiate a query definition and execution.
22. The computer-implemented method of claim 15 , wherein:
the catalog is configured such that update transactions to the catalog are transactionally isolated from other transactions of the computing system.
23. The computer-implemented method of claim 15 , wherein:
the query interface includes a mechanism to atomically select a managed object if the managed object exists and, if the managed object does not exist, create an instance of the managed object.