Since programmers often build task-specific tools, one way to make them more productive is to give them better tool-making tools. When tools take the form of program generators, this idea leads to libraries for creating languages that are directly extensible. Programmers may even be encouraged to think about a problem in terms of a language that would better support the task. This approach is sometimes called language-oriented programming
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Squeryl
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A Scala ORM and DSL for talking with Databases with minimum verbosity and maximum type safety
Write compiler validated statements.
Squeryl statements that pass compilation won’t fail at runtime. Refactor your schema as often as is required, the Scala compiler and your IDE will tell you exactly which lines of code are affected.
Never repeat yourself
The Composability of Squeryl statements allows you to define them
once and reuse them as sub queries within other statements.
Write declaratively
Write as declaratively as SQL, only with less boilerplate. SQL’s declarativeness is preserved, not encapsulated in a lower level API that requires imperative and procedural code to get things done.
Explicitly control retrieval granularity and laziness
A significant part of optimizing a database abstraction layer is to choose for every situation the right balance between fine and large grained retrieval, and the optimal mix of laziness and eagerness. Data retrieval strategies are explicit in Squeryl rather than driven by configuration like current generation Java ORMs read more