add Kotlin examples for Spring Data Integration of servlet application

This commit is contained in:
Talerngpong Virojwutikul 2022-02-14 23:15:27 +07:00 committed by Marcus Da Coregio
parent 304ef2302c
commit 070b67a9a1
1 changed files with 28 additions and 4 deletions

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@ -7,10 +7,11 @@ It is not only useful but necessary to include the user in the queries to suppor
[[data-configuration]]
=== Spring Data & Spring Security Configuration
To use this support, add `org.springframework.security:spring-security-data` dependency and provide a bean of type `SecurityEvaluationContextExtension`.
In Java Configuration, this would look like:
To use this support, add `org.springframework.security:spring-security-data` dependency and provide a bean of type `SecurityEvaluationContextExtension`:
[source,java]
====
.Java
[source,java,role="primary"]
----
@Bean
public SecurityEvaluationContextExtension securityEvaluationContextExtension() {
@ -18,6 +19,16 @@ public SecurityEvaluationContextExtension securityEvaluationContextExtension() {
}
----
.Kotlin
[source,kotlin,role="secondary"]
----
@Bean
fun securityEvaluationContextExtension(): SecurityEvaluationContextExtension {
return SecurityEvaluationContextExtension()
}
----
====
In XML Configuration, this would look like:
[source,xml]
@ -31,7 +42,9 @@ In XML Configuration, this would look like:
Now Spring Security can be used within your queries.
For example:
[source,java]
====
.Java
[source,java,role="primary"]
----
@Repository
public interface MessageRepository extends PagingAndSortingRepository<Message,Long> {
@ -40,6 +53,17 @@ public interface MessageRepository extends PagingAndSortingRepository<Message,Lo
}
----
.Kotlin
[source,kotlin,role="secondary"]
----
@Repository
interface MessageRepository : PagingAndSortingRepository<Message,Long> {
@Query("select m from Message m where m.to.id = ?#{ principal?.id }")
fun findInbox(pageable: Pageable): Page<Message>
}
----
====
This checks to see if the `Authentication.getPrincipal().getId()` is equal to the recipient of the `Message`.
Note that this example assumes you have customized the principal to be an Object that has an id property.
By exposing the `SecurityEvaluationContextExtension` bean, all of the <<common-expressions,Common Security Expressions>> are available within the Query.