摘要:
The subject disclosure pertains to interaction with one or more collections of data. Queries and domains are presented as separate entities. A number of compositional operators are provided to manipulate a generic collection of data at a low level. Query comprehensions can specify interactions with one or more collections at a higher or more intuitive level. The query comprehensions can be translated or mapped to operators that can be employed to interact with one or more data collections and return results where applicable.
摘要:
An object-relational mapping mechanism facilitates customized relationship traversal. The mechanism can override default loading behavior with custom functionality (e.g., eager loading, lazy loading . . . ) specified by a programmer, for example. In other words, the object-relational mapping mechanism includes an extensibility point or hook for customization.
摘要:
The subject disclosure pertains to systems and methods that facilitate retrieval of data. In particular, an application defined data shape can regulate loading of data for use in an object relational mapping system, enabling the object-oriented application to access data in a relational data base system. Data shapes define policies that control data retrieval, enabling efficient data loading. A data shape allows users to declaratively specify a set of policies to be applied to all queries associated with the data shape. In particular, data shapes can include policies that control eager loading. In addition, data shapes can also include filtering policies intended to reduce or limit data retrieved from a relational database
摘要:
The subject disclosure pertains to interaction with one or more collections of data. Queries and domains are presented as separate entities. A number of compositional operators are provided to manipulate a generic collection of data at a low level. Query comprehensions can specify interactions with one or more collections at a higher or more intuitive level. The query comprehensions can be translated or mapped to operators that can be employed to interact with one or more data collections and return results where applicable.
摘要:
Systems and methods that enhance expressibility in a programming language (e.g., Visual Basic) via relaxation of artificial restrictions and extension of delegates associated therewith, without changing the runtime infrastructure. A stub is employed that can replace an impermissible expression in the programming language, to leverage the existing permissible expressions.
摘要:
Systems and methods that enhance expressibility in a programming language (e.g., Visual Basic) via relaxation of artificial restrictions and extension of delegates associated therewith, without changing the runtime infrastructure. A stub is employed that can replace an impermissible expression in the programming language, to leverage the existing permissible expressions.
摘要:
An API for functionally updates to data represented in trees, such as XML trees, is provided. Functional updates can be implemented using an update combinator to search for matching nodes and apply an indicated function to those matching nodes. This API can be used in non-functional languages, such as procedural languages or scripting languages. Updates are performed without side effects since a shallow clone is created for at least a portion of a tree. Nodes of the tree can be streamed into memory so that only a portion of a large tree is present in memory at any time. Artificial intelligence can be used by the API to optimize performance under the circumstances, such as optimizing based on node type that is to be updated.
摘要:
Systems and methods that enhance and balance a late binding and an early binding in a programming language, via supplying an option component to opt-in (or opt-out) late binding, and wherein a late binding is triggered based on a static type for the variable (e.g., object or a type/string.) Additionally, the variable is enabled to have different static types at different regions (e.g., a program fragment) of the programming language.
摘要:
Systems and methods that enhance expressibility in a programming language (e.g., Visual Basic) via relaxation of artificial restrictions and extension of delegates associated therewith, without changing the runtime infrastructure. A stub is employed that can replace an impermissible expression in the programming language, to leverage the existing permissible expressions.
摘要:
Iterate-aggregate shape queries are executable in an efficient parallel manner. Techniques are utilized that leverage properties of aggregations to implement such a query in a highly parallelized manner utilizing one or both of vertical and horizontal parallelism. More specifically, queries can be recursively evaluated in parallel utilizing partitioning and repartitioning mechanisms. Distributed query execution results over a subset of input data are repartitioned and aggregated to produce a final result.