摘要:
A message broker data processing apparatus comprising: a unit for receiving published messages on a topic from a plurality of publisher applications; a unit for processing the received messages; and a unit for distributing the processed messages to a subscriber application; wherein the unit for receiving includes a plurality of publication point data processing nodes, each of which receives published messages on the topic from a publisher application.
摘要:
An object oriented transaction processing system based on the Object Management Group Object Management Architecture provides effective transaction scheduling and servicing through a combination of Object Transaction Services and a Transactional Object Request Broker. The Object Transactional Services manage the information needed to provide reliability in transactions, including a two phase commit process to implement transaction atomicity. The transactional Object Request Broker includes a transaction monitor facility to schedule objects to respond to object transaction requests. The tunable transaction monitor increases the efficiency of transaction processing by optimizing use of computer system resources allocated to servicing transactions. The transaction monitor activates the objects necessary to satisfy a transaction request. Activation includes an ability to start new processes or threads of execution or to reuse existing processes or threads. The transaction monitor interfaces to the Object Request Broker are clearly defined allowing substitution of different transaction monitors as dictated by the application.
摘要:
A system and process for enhancing procedural software using object oriented classes. Implementation classes are constructed that provide a defined object oriented interface to applications and are able to invoke the procedural software using defined procedural application program interfaces (APIs). New function is added to the software by adding classes that interface to the implementation classes or directly to the procedural API. The new function builds upon the procedural software without accessing the procedural software source code or modifying that source code.
摘要:
A system, method and article of manufacture for automatically inserting transactional recoverability object service in binary classes in an information handling system employing object oriented technology, includes the steps of recognizing a constraint indicating that an object is not recoverable and generating a recoverable version of the object. One alternative for generating a recoverable version of the object includes the step of saving a first state of the object in a stream before execution of any method which might change the state of the object. Another alternative for the generating step includes the steps of creating a persistence synchronous class object, registering the persistence synchronous class object, and executing the persistence synchronous class object.
摘要:
Methods, systems, and products are disclosed in which port type agnostic proxy support for web services intermediaries is typically provided by receiving in a web services intermediary a request for execution of a web services operation, wherein the request includes parametric information from which an endpoint for a target service that supports the operation can be identified; identifying, in dependence upon the parametric data, the endpoint for a target service that supports the operation; creating a target service request for execution of the operation on the target service; and issuing the target service request to the target service. Exemplary embodiments typically also include the return path of request-response processing; receiving in the intermediary a response from the target service; creating in the intermediary, in dependence upon the response from the target service, a response from the intermediary; and returning the response from the intermediary to the requesting client.
摘要:
A foldable container is formed from a single blank of sheet material which has stacking shoulders, reinforced corners side panels and display panels. The container includes a bottom section delimited by pairs of upright end panels and side panels. The bottom section is slightly wider adjacent its center than adjacent the front and back. Two of the side panels are foldably connected to peripheral segments of the bottom section, pre-glued and cooperate with the latter to form an open top product-accommodating compartment. The top edges of each of the side panels include shoulders for supporting a container stacked thereon and positioning tabs that extend upwardly and fit into corresponding openings in the bottom of the upper container. The lateral edge of each end panel and adjacent side panel has foldably connected thereto a corner-reinforcing member and create shopping accessibility from the front of the container. The reinforcing member includes a first section connected to the end panel edge and being secured in partially overlying relation with the interior surface of the adjacent side panel. The reinforcing member also includes a second section connected to the first section and secured thereto in at least a partial foldback overlying relation with the first section. A third section is connected to the second section and is secured in partially overlying relation to the interior surface of the end panel. This configuration can be mirrored on the back panel providing two-sided shopability and is adaptable for three or four sided shopability.
摘要:
A system and method for effectively synchronizing data in an object oriented distributed transaction processing system employing a multilevel data store. Each object that maintains first-level volatile data registers as a synchronization object if unsynchronized changes to that data exist. A register object at each node tracks synchronized objects registered for that node. Each registered synchronization object, in turn, registers with its superior node when registered synchronization objects are present. A hierarchy of registered synchronization objects and synchronization objects is thereby created. The transaction termination process transmits a pre-prepare message to the registered synchronization hierarchy providing each synchronization object an opportunity to flush its data to the second-level persistent data store. The hierarchical structure of registered objects ensures that the minimum number of messages are transmitted over the network.
摘要:
A system and method for effectively synchronizing data in an object oriented distributed transaction processing system employing a multilevel data store. Each object that maintains first-level volatile data registers as a synchronization object if unsynchronized changes to that data exist. A register object at each node tracks synchronized objects registered for that node. Each registered synchronization object, in turn, registers with its superior node when registered synchronization objects are present. A hierarchy of registered synchronization objects and synchronization objects is thereby created. The transaction termination process transmits a pre-prepare message to the registered synchronization hierarchy providing each synchronization object an opportunity to flush its data to the second-level persistent data store. The hierarchical structure of registered objects ensures that the minimum number of messages are transmitted over the network.
摘要:
A system, method and article of manufacture for automatically inserting concurrency object services into binary classes in an information handling system employing object oriented technology, includes the steps of recognizing a constraint indicating that an object does not support concurrency and generating a concurrent version of the object. One alternative for generating a version of an object supporting concurrency is automatic transactional locking. The approach includes the steps of inheriting from the Lockable class which adds state to a class to allow object-level locking, inheriting from the Serialised metaclass which adds before and after methods to all methods of the non-concurrent version, and the object must be a RecoverableObject. Another alternative for generating a version of an object supporting concurrency is automatic per method locking. The approach includes the steps of inheriting from the Lockable class which adds state to a class, and inheriting from the Serialised metaclass which adds before and after methods to all methods of the non-concurrent version. Another alternative for generating a version of an object supporting concurrency is explicit locking. The approach for RecoverableObjects includes the step of inheriting from a ConcurrentObject (which is derived from the Lockable class). The approach for non-RecoverableObjects also includes the step of inheriting from a ConcurrentObject.
摘要:
Methods, systems, and products are disclosed in which port type agnostic proxy support for web services intermediaries is provided generally by receiving in a web services intermediary a request for execution of a web services operation, wherein the request includes parametric information from which an endpoint for a target service that supports the operation can be identified; identifying, in dependence upon the parametric data, the endpoint for a target service that supports the operation; determining whether the request requires a synchronous response; creating a target service request for execution of the operation on the target service; issuing the target service request to the target service; and waiting for a response from the target service if the request requires a synchronous response.