Refactored the implementation of the dynamic lookup of properties and functions on EvaluationContextExtensions. All the reflective lookup logic has moved into an EvaluationContextExtensionAdapter.
We now also distinguish between the meta-information that can be looked up once and cached (so that we avoid reflection overhead for subsequent context creations).
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
Changed SPI to expose a Function type rather than plain methods as well as an arbitrary root object.
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
Collapsed variable gathering methods into one, make sure we expose all values (also null ones). Renamed unit test for ExtensionAwareEvaluationContextProvider according to the class name. Some further cleanups in the test case.
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
We now expose special parameters like Pageable and Sort to be used in SpEL expressions if they don't collide with existing named parameters.
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
We new automatically register public static fields declared on classes extending EvaluationContextExtensionSupport as properties to be used within SpEL expressions.
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
We new automatically register public static methods declared on classes extending EvaluationContextExtensionSupport as functions to be used within SpEL expressions.
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
Extracted SPI build for DATAJPA-564 into Spring Data Commons. Simplified the configuration setup code and removed the ability to define a custom EvaluationContextProvider for now. We directly declare a bean definition which automatically picks up EvaluationContextExtensions.
RepositoryFactory(Bean)Support is now aware of the EvaluationContextProvider to hand it to the template method that creates the QueryLookupStrategy. Deprecated the previously existing template method in favor of an extended one.
Removed variable declarations from the extension interface for now as usually properties serve the same purposes as variables which makes the latter superfluous for now. Applied some JavaDoc and API signature polish. Added unit tests for ExtensionAwareEvaluationContextProvider.
Related pull request: spring-projects/spring-data-jpa#101
Related ticket: DATAJPA-564
This commit introduces @ReadOnlyProperty to mark properties as not to be persisted. That trait is exposed via the newly added PersistentProperty.isWritable() which supersedes shallBePersisted(). Currently all non-transient property that are not annotated with @ReadOnlyProperty are considered writable.
Original pull request: #88.
DefaultRepositoryInformation now excludes default methods from the query methods it detects. RepositoryFactorySupport adds a special MethodInterceptor to the proxy which handles the invocation of default methods.
Related tickets: DATACMNS-535.
We now synchronize the (seldom) writes to the isPropertyParameterCache HashMap in PreferredConstructor via a ReadWriteLock. We could as well have used a ConcurrentHashMap here without the need for manual locking but this would potentially waste memory for a mostly read-only data structure. We also anticipate potential multiple writes for the same property.
Original pull request: #86.
Parameters erroneously rejected @Param annotated query method parameters that were preceded by a non-bindable type (like Pageable or Sort) as it checked for a 0 index of the parameter. We now manually keep an index in the check itself and have removed the Parameter.isFirst() method as it's not used anywhere else.
We can now detect whether a given query method wants to limit the query results based on two new supported prefixes (findFirstBy…(…) and findFirstKBy…(…)) where "First" part can also be replaced by "Top" and an following optional K (which must be a decimal int) that denotes the maximal number of result rows to be retuned by the query.
This can be used by the stores to allow queries like:
- T findFirstBy…OrderBy…Asc -> smallest
- T findFirstBy…OrderBy…Desc -> greatest
- T findTopBy…OrderBy…Desc -> greatest
- T findFirstBy…(Sort sort) -> general purpose
- T findTopBy…(Sort sort) -> general purpose
- List<T> findFirstKBy…OrderBy…Asc -> smallest K
- List<T> findFirstKBy…OrderBy…Desc -> biggest K
- List<T> findFirstKBy…(Sort sort) -> general purpose TOP K
- List<T> findTopKBy…(Sort sort) -> general purpose TOP K
The limiting expressions also support the Distinct expression. Also, for the queries limiting the result set to one instance, wrapping the result into an Optional is supported.
If pagination or slicing is applied to a limiting query pagination (and the calculation of the number of pages available) is happening within the limited result.
Original pull request: #85.
We're now using the newly introduced method on ControllerLinkBuilderFactory that takes both a type and a method to forward the method the invocation is happening on independently from the method being invoked.
The property "location" should actually be "locations" since this attribute is read by org.springframework.data.repository.config.ResourceReaderRepositoryPopulatorBeanDefinitionParser.doParse(Element, BeanDefinitionBuilder).
The equals(…) and hashCode() methods of TypeVariableTypeInformation previously tried to evaluate the unresolved context of the type variable. This can cause issues in recursive type definitions as set up in the according test case. We now implement the methods based on the resolved type to makes sure we break the recursive lookup of PersistentEntity instances in AbstractMappingContext.
The erroneous lookup was actually caused by unresolved base types being added to the mapping context within the JPA project as the JPA meta-model also returns those types as managed types.
Related pull request: #84.
As SPR-11744 got fixed recently and will be available in Spring 3.2.9, we removed the guard in RepositoryBeanDefinitionRegistrarSupport which defaulted the environment in case it was not set by the container.
Related tickets: SPR-11744.
We now run the test case for the query method execution with Futures on Spring 3.2 as well (as SPR-11725 was fixed recently).
Related tickets: DATACMNS-489, DATACMNS-499, SPR-11725.
In case the repository method execution returns a collection that needs to be converted into a different collection (e.g. List -> Set) we erroneously ran into a NullableWrapper conversion. This was due to the fact that we only used the raw method return type, which caused the ObjectToCollectionConverter to kick in (as the target type's component type falls back to Object if we use raw types).
We're now using Spring's MethodParameter abstraction to create a TypeDescriptor for the method's return type which fully supports generics, so that the conversion check for NullableWrapper -> target type does not match the ObjectToCollectionWrapper.
Prepared the QueryExecutionConverters to be able to support recursive type conversion once we move to Spring 4 as TypeDescriptor exposes the ResolvedType as of this version so that we can inspect the type parameter of the wrapper type to invoke a nested conversion (e.g. Integer -> Optional<String> requires NullableWrapperTo(Guava|Jdk)OptionalConverter being invoked and in turn recursively convert the Integer to String).
We now explicitly discuss the case of referring to properties with underscores (e.g. first_name) in repository query methods.
Added missing language declaration for a code block.
We now also reflectively check for the presence of DefaultParameterNameDiscoverer. This allows the usage of the new reflection methods introduced in Java 8 if the user code is running on Spring 4.
Changed the name of the constant for the ParameterNameDiscoverer in Parameters to meet conventions for constants.
If a configuration class resides in the default package and no base package is defined in the @Enable…Repositories annotation we previously failed in extracting the package from the class name (as there is none).
We now use Spring's ClassUtils that correctly handles this case and returns an empty String for the default package.
Spring 4's GenericTypeResolver returns null when trying to resolve type arguments for types that do not fully resolve the generic types.
Related issues: SPR-11763.
