Querydsl
requery
| Querydsl | requery | |
|---|---|---|
| 6 | 1 | |
| 4,575 | 3,132 | |
| 0.5% | 0.0% | |
| 4.1 | 0.0 | |
| 4 days ago | about 2 years ago | |
| Java | Java | |
| Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Querydsl
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PostgreSQL Is Enough
There is a bit of tooling needed but is already around. For Java for example I had very good experience with a combination of flyway [1] for migrations, testcontainers [2] for making integration tests as easy as unit tests and querydsl [3] for a query and mapping layer.
[1] https://github.com/flyway/flyway
[2] https://java.testcontainers.org/modules/databases/postgres/
[3] https://github.com/querydsl/querydsl
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Apache Empire-Db: Full SQL Freedom for Java
http://querydsl.com/ also seems similar
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Useful & Unknown Java Libraries - Piotr's TechBlog
As for JPA: I cannot miss the QueryDSL library for building typesafe queries. Another interesting alternative is Jinq, that provides a java stream api to query entities.
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You might not need an ORM
> all I really want is a nice API for building queries (that actually supports all underlying database features) and automatic mapping of the results to whatever objects/structs and primitives the language supports.
For Java based solutions, check out https://www.jooq.org/ or http://querydsl.com/
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How do access sql through java in the real world?
QueryDsl -- http://querydsl.com
- How to build SQL query strings?
requery
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Learning Android’s Room Database Made Easy
ah, I was thinking of https://github.com/requery/requery but I wasn't really sure, also that project is dead oh no :D
What are some alternatives?
jOOQ - jOOQ is the best way to write SQL in Java
kotlin-jpa-specification-dsl - This library provides a fluent DSL for querying spring data JPA repositories using spring data Specifications (i.e. the JPA Criteria API), without boilerplate code or a generated metamodel.
JDBI - The Jdbi library provides convenient, idiomatic access to relational databases in Java and other JVM technologies such as Kotlin, Clojure or Scala.
Exposed - Kotlin SQL Framework
Jinq - LINQ-style queries for Java 8
Apache Hive - Apache Hive
Ktorm - A lightweight ORM framework for Kotlin with strong-typed SQL DSL and sequence APIs.
Spring Data JPA - Simplifies the development of creating a JPA-based data access layer.
DBFlow - A blazing fast, powerful, and very simple ORM android database library that writes database code for you.
Presto - The official home of the Presto distributed SQL query engine for big data
Realm - Realm is a mobile database: a replacement for SQLite & ORMs