US 2011/0239230 A1Published application

Reducing persistence commands

AssigneeMicrosoft Corporation

InventorsNicholas A. Allen, Justin D. Brown

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Abstract

The present invention extends to methods, systems, and computer program products for reducing persistence commands. An application host sends a persistence command to a persistence provider for processing. If the persistence provider recognizes and is able to carry out the persistence command, the persistence provider incorporates the semantics of the persistence command into the command implementation strategy; otherwise, the persistence provider employs a command reduction processor. The process of executing or reducing persistence commands is repeated until the persistence provider has produced and completed execution of a command implementation strategy equivalent to the original persistence command or until an unprocessable persistence command is reached for which no further reductions are possible. A command reduction processor can provide alternative persistence commands or an algorithm of persistence commands with semantics equivalent to an originally received persistence command.

Claims20

Dependent claims

In a computer architecture including one or more processors and system memory, the computer architecture also including an application host, a persistence provider, a command reduction processor, and an instance store, the application host compatible with persistence commands in an application host command set, the instance store compatible with persistence commands in an instance store command set, the persistence provider containing an instance persistence command processor and instance store driver, the instance persistence command processor and instance store driver configured to interoperate to translate persistence commands between the application host command set and the instance store command set, a method for converting a persistence command for compatibility with the instance store command set, the method comprising:

an act of the command reduction processor receiving a persistence command along with a reducer call back from the instance store driver, the persistence command from the application host command set, the reducer call back for calling a command reducer component providing one or more implementation strategies for the persistence command, the persistence command and reducer call back sent from the instance store driver to the command reduction processor in response to an inability to translate the persistence command for compatibility with the instance store command set;
an act of the command reduction processor using the reducer call back to call the command reducer component for the persistence command;
an act of the command reduction processor receiving back one or more reduced persistence commands from the command reducer, the one or more reduced persistence commands from the application host command set, the one or more reduced persistence commands representing one strategy for implementing the intent of at least a portion of the persistence command;
and
an act of the command reduction processor forwarding the one or more reduced persistence commands to the instance store driver for translation for compatibility with the instance store command set.

2 more elements

In a computer architecture including one or more processors and system memory, the computer architecture also including an application host, a persistence provider, a command reduction processor, and an instance store, the application host compatible with persistence commands in an application host command set, the instance store compatible with persistence commands in an instance store command set, the persistence provider containing an instance persistence command processor and instance store driver, the instance persistence command processor and instance store driver configured to interoperate to translate persistence commands between the application host command set and the instance store command set, a method for reducing a persistence command, the method comprising:

an act of sending a persistence command and a reducer call back to the instance persistence command processor, the persistence command from the application host command set, the reducer call back for calling a command reducer component associated with the application host command set, the command reducer component providing one or more implementation strategies for the persistence command;
an act of receiving a call from the command reduction processor on the reducer call back;
an act of invoking the command reducer component in response to the call from the command reduction processor;
an act of the command reducer component selecting one or more reduced persistence commands for translation at the instance store driver for compatibility with the instance store command set, the one or more reduced persistence commands from the application host command set, the one or more reduced persistence commands representing one strategy for implementing the intent of at least a portion of the persistence command;
and
an act of returning the one or more reduced persistence commands to the command reduction processor in response to the call on the reducer call back.

3 more elements

A system for reducing persistence commands the system comprising:

one or more system processors;
system memory;
one or more computer storage media having stored thereon computer-executable instructions representing an application host, an instance store driver, a command reduction processor, and an instance store;
an application host command set containing persistence commands compatible with the application host;
and
an instance store command set containing persistence commands compatible with the instance store;
and
wherein the application host is configured to:
send a persistence command and a reducer call back to a persistence provider that contains the instance store driver, the persistence command from an application host command set, the reducer call back for calling a command reducer component associated with the application host command set, the command reducer component providing one or more implementation strategies for the persistence command;
receive a call from the command reduction processor on the reducer call back;
invoke the command reducer component in response to the call from the command reduction processor;
select one or more reduced persistence commands for translation at the instance store driver for compatibility with the instance store command set, the one or more reduced persistence commands from the application host command set, the one or more reduced persistence commands representing a strategy for implementing the intent of at least a portion of the persistence command;
and
returning the one or more reduced persistence commands to the command reduction processor in response to the call on the reducer call back;
and
wherein the instance store driver is configured to:
receive the persistence command and the reducer call back from the persistence provider;
detect an inability to translate the persistence command for compatibility with the instance store command set;
send the persistence command along with a reducer call back to the command reduction processor in response to detecting the inability to translate the persistence command for compatibility with the instance store command set;
receive the one or more reduced persistence commands from the command reduction processor;
and
execute the one or more reduced persistence commands to implement the strategy for implementing the intent of the at least a portion of the persistence command;
and
wherein the command reduction processor is configured to:
receive the persistence command along with the reducer call back from the instance store driver;
use the reducer call back to call the command reducer component for the persistence command;
receive back the one or more reduced persistence commands from the command reducer;
and
forward the one or more reduced persistence commands to the instance store driver for translation for compatibility with the instance store command set.

26 more elements

Dependencies are inferred from the claim text.