BibSonomy bookmarks for /user/jil/springhttps://www.bibsonomy.org/user/jil/springBibSonomy RSS Feed for /user/jil/springThe best way to write a Spring Data Exists Query - Vlad Mihalcea["slug" being an entity attribute]
Spring Data offers an existsBy query method, which we can define in the PostRepository, as follows:
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@Repository
public interface PostRepository
extends JpaRepository<Post, Long> {
boolean existsBySlug(String slug);
}
[another] option to emulate existence is using a CASE WHEN EXISTS native SQL query:
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@Repository
public interface PostRepository
extends JpaRepository<Post, Long> {
@Query(value = """
SELECT
CASE WHEN EXISTS (
SELECT 1
FROM post
WHERE slug = :slug
)
THEN 'true'
ELSE 'false'
END
""",
nativeQuery = true
)
boolean existsBySlugWithCase(@Param("slug") String slug);
}https://vladmihalcea.com/spring-data-exists-query/jil2023-10-25T16:43:00+02:00check data existence exists method spring <span itemprop="description">["slug" being an entity attribute]
Spring Data offers an existsBy query method, which we can define in the PostRepository, as follows:
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@Repository
public interface PostRepository
extends JpaRepository<Post, Long> {
boolean existsBySlug(String slug);
}
[another] option to emulate existence is using a CASE WHEN EXISTS native SQL query:
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@Repository
public interface PostRepository
extends JpaRepository<Post, Long> {
@Query(value = """
SELECT
CASE WHEN EXISTS (
SELECT 1
FROM post
WHERE slug = :slug
)
THEN 'true'
ELSE 'false'
END
""",
nativeQuery = true
)
boolean existsBySlugWithCase(@Param("slug") String slug);
}</span>The best way to use Spring Data JPA Stream methods - Vlad Mihalcea@Repository
public interface PostRepository extends BaseJpaRepository<Post, Long> {
@Query("""
select p
from Post p
where date(p.createdOn) >= :sinceDate
"""
)
@QueryHints(
@QueryHint(name = AvailableHints.HINT_FETCH_SIZE, value = "25")
)
Stream<Post> streamByCreatedOnSince(@Param("sinceDate") LocalDate sinceDate);
}
The FETCH_SIZE JPA query hint is necessary for PostgreSQL and MySQL to instruct the JDBC Driver to prefetch at most 25 records. Otherwise, the PostgreSQL and MySQL JDBC Drivers would prefetch all the query results prior to traversing the underlying ResultSet.https://vladmihalcea.com/spring-data-jpa-stream/jil2023-10-25T16:30:13+02:00bach data hint mysql postgres return size spring stream type <span itemprop="description">@Repository
public interface PostRepository extends BaseJpaRepository<Post, Long> {
@Query("""
select p
from Post p
where date(p.createdOn) >= :sinceDate
"""
)
@QueryHints(
@QueryHint(name = AvailableHints.HINT_FETCH_SIZE, value = "25")
)
Stream<Post> streamByCreatedOnSince(@Param("sinceDate") LocalDate sinceDate);
}
The FETCH_SIZE JPA query hint is necessary for PostgreSQL and MySQL to instruct the JDBC Driver to prefetch at most 25 records. Otherwise, the PostgreSQL and MySQL JDBC Drivers would prefetch all the query results prior to traversing the underlying ResultSet.</span>java - Spring actuator's liveness and readiness are returning 404 - Stack OverflowIf you upgrade your spring-boot version to >= 2.3.0 you can enable the liveness and readiness probes by adding:
management:
health:
probes:
enabled: truehttps://stackoverflow.com/questions/70900478/spring-actuators-liveness-and-readiness-are-returning-404jil2023-06-22T14:05:31+02:00actuator enpoint health probe spring <span itemprop="description">If you upgrade your spring-boot version to >= 2.3.0 you can enable the liveness and readiness probes by adding:
management:
health:
probes:
enabled: true</span>How to enable spring security kotlin DSL? - Stack OverflowYou need to manually import the ServerHttpSecurity invoke.
import org.springframework.security.config.web.server.invoke
/
import org.springframework.security.config.annotation.web.invokehttps://stackoverflow.com/questions/66018084/how-to-enable-spring-security-kotlin-dsljil2023-06-22T14:04:40+02:00dsl import kotlin security spring <span itemprop="description">You need to manually import the ServerHttpSecurity invoke.
import org.springframework.security.config.web.server.invoke
/
import org.springframework.security.config.annotation.web.invoke</span>Remove duplicate commons logging classes from spring-jcl [SPR-16062] · Issue #20611 · spring-projects/spring-framework · GitHubhttps://github.com/spring-projects/spring-framework/issues/20611jil2022-03-22T17:46:19+01:00class classes commons duplicate jcl logging package spring <a itemprop="url" data-versiondate="2022-03-22T17:46:19+01:00" href="https://github.com/spring-projects/spring-framework/issues/20611" rel="nofollow" class="description-link">https://github.com/spring-projects/spring-framework/issues/20611</a>Apache Camel: Spring BootRouteBuilderhttp://camel.apache.org/spring-boot.htmljil2018-08-28T18:53:10+02:00apache boot camel engine process spring <span itemprop="description">RouteBuilder</span>java - Spring MVC - How to get all request params in a map in Spring controller? - Stack Overflow@RequestParam Map<String,String> allRequestParamshttps://stackoverflow.com/questions/7312436/spring-mvc-how-to-get-all-request-params-in-a-map-in-spring-controllerjil2018-08-23T10:48:08+02:00all annotation controller map mvc parameter params request rest spring <span itemprop="description">@RequestParam Map<String,String> allRequestParams</span>24. Externalized Configurationhttps://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.htmljil2018-08-08T11:53:14+02:00boot external file loading property spring <a itemprop="url" data-versiondate="2018-08-08T11:53:14+02:00" href="https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html" rel="nofollow" class="description-link">https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html</a>Using Neo4j from Spring - Neo4j Graph Database Platformhttps://neo4j.com/developer/spring-data-neo4j/jil2018-08-08T11:51:18+02:00api neo4j ogm spring <a itemprop="url" data-versiondate="2018-08-08T11:51:18+02:00" href="https://neo4j.com/developer/spring-data-neo4j/" rel="nofollow" class="description-link">https://neo4j.com/developer/spring-data-neo4j/</a>GenericApplicationContext (Spring Framework 5.0.8.RELEASE API)Usage example:
GenericApplicationContext ctx = new GenericApplicationContext();
XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(ctx);
xmlReader.loadBeanDefinitions(new ClassPathResource("applicationContext.xml"));
PropertiesBeanDefinitionReader propReader = new PropertiesBeanDefinitionReader(ctx);
propReader.loadBeanDefinitions(new ClassPathResource("otherBeans.properties"));
ctx.refresh();
MyBean myBean = (MyBean) ctx.getBean("myBean");https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/context/support/GenericApplicationContext.htmljil2018-07-31T16:04:50+02:00applicationcontext classpath example generic include load spring <span itemprop="description">Usage example:
GenericApplicationContext ctx = new GenericApplicationContext();
XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(ctx);
xmlReader.loadBeanDefinitions(new ClassPathResource("applicationContext.xml"));
PropertiesBeanDefinitionReader propReader = new PropertiesBeanDefinitionReader(ctx);
propReader.loadBeanDefinitions(new ClassPathResource("otherBeans.properties"));
ctx.refresh();
MyBean myBean = (MyBean) ctx.getBean("myBean");</span>SpringReference · wicketstuff/core Wiki · GitHubhttps://github.com/wicketstuff/core/wiki/SpringReferencejil2017-08-30T12:07:16+02:00alternative noproxy reference spring springbean wicket <a itemprop="url" data-versiondate="2017-08-30T12:07:16+02:00" href="https://github.com/wicketstuff/core/wiki/SpringReference" rel="nofollow" class="description-link">https://github.com/wicketstuff/core/wiki/SpringReference</a>FactoryBean (Spring Framework API 2.5)As of Spring 2.0, FactoryBeans are allowed to return null objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore.https://docs.spring.io/spring-framework/docs/2.5.6/api/org/springframework/beans/factory/FactoryBean.htmljil2017-08-29T10:54:52+02:00factorybean null spring <span itemprop="description">As of Spring 2.0, FactoryBeans are allowed to return null objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore.</span>java - How can I get a Spring bean injected in my custom Wicket model class? - Stack Overflow public InjectedDetachableModel() {
Injector.get().inject(this);
}
http://stackoverflow.com/questions/8155359/how-can-i-get-a-spring-bean-injected-in-my-custom-wicket-model-classjil2017-05-02T11:06:11+02:00bean dependency inject injection model spring wicket <span itemprop="description"> public InjectedDetachableModel() {
Injector.get().inject(this);
}
</span>WebApplicationInitializer (Spring Framework 4.3.5.RELEASE API)http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/WebApplicationInitializer.htmljil2016-12-31T19:46:58+01:004 WebApplicationInitializer application init initializer interface spring web webapp <a itemprop="url" data-versiondate="2016-12-31T19:46:58+01:00" href="http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/WebApplicationInitializer.html" rel="nofollow" class="description-link">http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/WebApplicationInitializer.html</a>java - Configuring the built-in c3p0 pooling in Hibernate using Spring - Stack Overflow<bean id="dataSourceGlobal" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${driver}" />
<property name="jdbcUrl" value="${server}" />
<property name="user" value="${user}" />
<property name="password" value="${passw}" />
<!-- these are C3P0 properties -->
<property name="acquireIncrement" value="${acquireIncrement}" />
<property name="minPoolSize" value="${minPoolSize}" />
<property name="maxPoolSize" value="${maxPoolSize}" />
<property name="maxIdleTime" value="${maxIdleTime}" />
</bean>http://stackoverflow.com/questions/5553890/configuring-the-built-in-c3p0-pooling-in-hibernate-using-springjil2016-05-18T05:10:25+02:00c3p0 c3po config datasource spring <span itemprop="description"><bean id="dataSourceGlobal" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${driver}" />
<property name="jdbcUrl" value="${server}" />
<property name="user" value="${user}" />
<property name="password" value="${passw}" />
<!-- these are C3P0 properties -->
<property name="acquireIncrement" value="${acquireIncrement}" />
<property name="minPoolSize" value="${minPoolSize}" />
<property name="maxPoolSize" value="${maxPoolSize}" />
<property name="maxIdleTime" value="${maxIdleTime}" />
</bean></span>spring - How to call a method after bean initialization is complete? - Stack Overflow@PostConstruct http://stackoverflow.com/questions/1088550/how-to-call-a-method-after-bean-initialization-is-completejil2016-05-04T13:24:59+02:00afterPropertiesSet annotation init method spring <span itemprop="description">@PostConstruct </span>How to do Spring Lookup Method Injection with Annotations?http://stackoverflow.com/questions/3891997/how-to-do-spring-lookup-method-injection-with-annotationsjil2016-04-17T19:23:43+02:00annotation bean factory injection method provider spring <a itemprop="url" data-versiondate="2016-04-17T19:23:43+02:00" href="http://stackoverflow.com/questions/3891997/how-to-do-spring-lookup-method-injection-with-annotations" rel="nofollow" class="description-link">http://stackoverflow.com/questions/3891997/how-to-do-spring-lookup-method-injection-with-annotations</a>Spring Application Context Hierarchy and ContextSingletonBeanFactoryLocator | .dev.bloghttp://techo-ecco.com/blog/spring-application-context-hierarchy-and-contextsingletonbeanfactorylocator/jil2016-04-01T14:01:05+02:00applicationcontext beanfactorylocator plugin spring <a itemprop="url" data-versiondate="2016-04-01T14:01:05+02:00" href="http://techo-ecco.com/blog/spring-application-context-hierarchy-and-contextsingletonbeanfactorylocator/" rel="nofollow" class="description-link">http://techo-ecco.com/blog/spring-application-context-hierarchy-and-contextsingletonbeanfactorylocator/</a>java - How to close a spring ApplicationContext? - Stack Overflow((ConfigurableApplicationContext)appCtx).close()http://stackoverflow.com/questions/14423980/how-to-close-a-spring-applicationcontextjil2016-04-01T13:59:25+02:00applicationcontext beanfactory close interface release spring <span itemprop="description">((ConfigurableApplicationContext)appCtx).close()</span>Chapter 3. Beans, BeanFactory and the ApplicationContexthttp://docs.spring.io/spring-framework/docs/1.2.x/reference/beans.html#beans-factory-placeholderconfigurerjil2016-03-31T16:41:34+02:00PropertyPlaceholderConfigurer applicationcontext config file placeholder properties property spring <a itemprop="url" data-versiondate="2016-03-31T16:41:34+02:00" href="http://docs.spring.io/spring-framework/docs/1.2.x/reference/beans.html#beans-factory-placeholderconfigurer" rel="nofollow" class="description-link">http://docs.spring.io/spring-framework/docs/1.2.x/reference/beans.html#beans-factory-placeholderconfigurer</a>