df9f8c417e
Made ObjectInstantiator interface public as otherwise the generated class to implement it cannot access it and thus the usage of the ByteCodeGeneratingEntityInstantiator fails completely. PreferredConstructor.isEnclosingClassParameter(…) now eagerly returns if the parameter itself is not an enclosing one and thus avoids a collection lookup and equals check. Moved equals check for the type to the very end of the equals check to increase the chances that other inequality guards kick in earlier. AbstractMappingContext now leaves the non-null-check for getPersistentEntity(…) to the factory method of ClassTypeInformation. We now pre-calculate the hash codes for TypeInformation implementations as far as possible as the instances are used as cache keys quite a lot. The same applies to AbstractPersistentProperty. BasicPersistentEntity now uses an ArrayList we sort during the verify() phase to mimic the previous behavior wich was implemented using a TreeSet as ArrayLists are way more performant when iterating over all elements which doWithProperties(…) is doing which is used quite a lot. BeanWrapper now avoids the getter lookup if field access is used. SimpleTypeHolder now uses a CopyOnWriteArrySet to leniently add types detected to be simple to the set of simple types to avoid ongoing checks against the inheritance hierarchy.
Spring Data Commons
Spring Data Commons is part of the umbrella Spring Data project that provides shared infrastructure across the Spring Data projects. It contains technology neutral repository interfaces as well as a metadata model for persisting Java classes.
Features
- Powerful Repository and custom object-mapping abstractions
- Support for cross-store persistence
- Dynamic query generation from query method names
- Implementation domain base classes providing basic properties
- Support for transparent auditing (created, last changed)
- Possibility to integrate custom repository code
- Easy Spring integration with custom namespace
Building the project
Prerequisites
- Maven 3
- Java 7 (the project produces Java 6 compatible bytecode but partially integrates with Java 7)
$ git clone https://github.com/spring-projects/spring-data-commons.git
$ cd spring-data-commons
$ mvn clean install
Getting Help
This README as well as the reference documentation are the best places to start learning about Spring Data Commons.
The main project website contains links to basic project information such as source code, JavaDocs, Issue tracking, etc.
For more detailed questions, please refer to spring-data on stackoverflow. If you are new to Spring as well as to Spring Data, look for information about Spring projects.
Contributing to Spring Data Commons
Here are some ways for you to get involved in the community:
- Create JIRA tickets for bugs and new features and comment and vote on the ones that you are interested in.
- Github is for social coding: if you want to write code, we encourage contributions through pull requests from forks of this repository. If you want to contribute code this way, please reference a JIRA ticket as well covering the specific issue you are addressing.
- Watch for upcoming articles on Spring by subscribing to springframework.org
Before we accept a non-trivial patch or pull request we will need you to sign the contributor's agreement. Signing the contributor's agreement does not grant anyone commit rights to the main repository, but it does mean that we can accept your contributions, and you will get an author credit if we do. Active contributors might be asked to join the core team, and given the ability to merge pull requests.