Emc IP Holding Company LLC

Satish Suryanarayan

Ruben Michel

Ilya Liubovich

Ohad Zeliger

A storage system query mechanism and corresponding techniques for implementing queries are provided. In one exemplary method, queries are processed by providing a server-side meta-model for creating queries on the server; and providing a client-side meta-model for creating queries on the client, wherein the client and the server are based on different programming languages and wherein the queries created on the client are translated from a language of the client into a language of the server for processing by the server. The query results are optionally converted to data transfer objects for presentation on the client. In an exemplary query service method, at least one base meta-model is provided having a plurality of base classes and a domain-specific injection point; and at least one domain-specific meta-model is received and injected into the base meta-model at the domain-specific injection point.

Storage system query mechanism and techniques

A storage system query mechanism and corresponding techniques for implementing queries are provided. In an exemplary method, control path data in a storage array is processed by obtaining an object model (OM) data object comprising retrieved control path data upon an initial user request; storing the OM data object in a cache using one or more fa&#xe7;ade data classes; employing a refresh service to listen to refresh events that impact a validity of the OM data object, wherein the OM data object is evicted from the cache when the validity of the OM data object is impacted by one of the refresh events; and delivering the OM data object from the cache upon a subsequent user request if the OM data object remains in the cache at a time of the subsequent user request.

A storage system query mechanism and corresponding techniques for implementing queries are provided. Queries can be created on a client and server, where the client and the server are based on different programming languages, by providing a server-side meta-model and client-side meta-model. A base meta-model is provided having a plurality of base classes and a domain-specific injection point to allow domain specific meta-models to be injected into the base meta-model. Domain-specific query executors can be employed to process a query. Techniques are also provided for caching control path data in a storage array using one or more fa&#xe7;ade data classes and a refresh service to listen to refresh events that impact a validity of the cached data objects. Applications can optionally register domain specific query executors, object model providers and/or class loaders. Query results can be presented on a client device by providing a declarative data grid component as part of a graphical user interface.

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Austin, TX, United States of America

Satish Suryanarayan