eugenp · davidmartinezbarua · Aug 26, 2025 · Aug 22, 2025 · Aug 22, 2025 · Aug 22, 2025
diff --git a/spring-quartz/pom.xml b/spring-quartz/pom.xml
@@ -34,6 +34,11 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-jdbc</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+
         <!-- spring's support for quartz -->
         <dependency>
             <groupId>org.springframework</groupId>
@@ -64,6 +69,15 @@
                 <filtering>true</filtering>
             </resource>
         </resources>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <mainClass>org.baeldung.springquartz.SpringQuartzApp</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
     </build>
 
     <properties>

diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/SpringQuartzRecoveryApp.java b/spring-quartz/src/main/java/org/baeldung/recovery/SpringQuartzRecoveryApp.java
@@ -0,0 +1,18 @@
+package org.baeldung.recovery;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@ComponentScan
+@EnableScheduling
+@SpringBootApplication
+public class SpringQuartzRecoveryApp {
+
+    public static void main(String[] args) {
+        SpringApplication app = new SpringApplication(SpringQuartzRecoveryApp.class);
+        app.setAdditionalProfiles("recovery");
+        app.run(args);
+    }
+}
diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/config/QuartzConfig.java b/spring-quartz/src/main/java/org/baeldung/recovery/config/QuartzConfig.java
@@ -0,0 +1,31 @@
+package org.baeldung.recovery.config;
+
+import org.quartz.CronScheduleBuilder;
+import org.quartz.JobBuilder;
+import org.quartz.JobDetail;
+import org.quartz.Trigger;
+import org.quartz.TriggerBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class QuartzConfig {
+
+    @Bean
+    public JobDetail sampleJobDetail() {
+        return JobBuilder.newJob(SampleJob.class)
+          .withIdentity("sampleJob", "group1")
+          .storeDurably()
+          .requestRecovery(true)
+          .build();
+    }
+
+    @Bean
+    public Trigger sampleTrigger(JobDetail sampleJobDetail) {
+        return TriggerBuilder.newTrigger()
+          .forJob(sampleJobDetail)
+          .withIdentity("sampleTrigger", "group1")
+          .withSchedule(CronScheduleBuilder.cronSchedule("0/30 * * * * ?")) // every 30s
+          .build();
+    }
+}
diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/config/SampleJob.java b/spring-quartz/src/main/java/org/baeldung/recovery/config/SampleJob.java
@@ -0,0 +1,11 @@
+package org.baeldung.recovery.config;
+
+import org.quartz.Job;
+import org.quartz.JobExecutionContext;
+
+public class SampleJob implements Job {
+    @Override
+    public void execute(JobExecutionContext context) {
+        System.out.println("Executing SampleJob at " + System.currentTimeMillis());
+    }
+}
diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/custom/ApplicationJob.java b/spring-quartz/src/main/java/org/baeldung/recovery/custom/ApplicationJob.java
@@ -0,0 +1,49 @@
+package org.baeldung.recovery.custom;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Entity
+public class ApplicationJob {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String name;
+    private boolean enabled;
+    private Boolean completed;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+    }
+
+    public Boolean getCompleted() {
+        return completed;
+    }
+
+    public void setCompleted(Boolean completed) {
+        this.completed = completed;
+    }
+}
diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/custom/ApplicationJobRepository.java b/spring-quartz/src/main/java/org/baeldung/recovery/custom/ApplicationJobRepository.java
@@ -0,0 +1,9 @@
+package org.baeldung.recovery.custom;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface ApplicationJobRepository extends JpaRepository<ApplicationJob, Long> {
+
+}
diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/custom/DataSeeder.java b/spring-quartz/src/main/java/org/baeldung/recovery/custom/DataSeeder.java
@@ -0,0 +1,26 @@
+package org.baeldung.recovery.custom;
+
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+@Component
+public class DataSeeder implements CommandLineRunner {
+
+    private final ApplicationJobRepository repository;
+
+    public DataSeeder(ApplicationJobRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    public void run(String... args) {
+        if (repository.count() == 0) {
+            ApplicationJob job = new ApplicationJob();
+            job.setName("simpleJob");
+            job.setEnabled(true);
+            job.setCompleted(false);
+
+            repository.save(job);
+        }
+    }
+}
diff --git a/spring-quartz/src/main/java/org/baeldung/recovery/custom/JobInitializer.java b/spring-quartz/src/main/java/org/baeldung/recovery/custom/JobInitializer.java
@@ -0,0 +1,49 @@
+package org.baeldung.recovery.custom;
+
+import org.baeldung.recovery.config.SampleJob;
+import org.quartz.JobBuilder;
+import org.quartz.JobDetail;
+import org.quartz.Scheduler;
+import org.quartz.SchedulerException;
+import org.quartz.SimpleScheduleBuilder;
+import org.quartz.Trigger;
+import org.quartz.TriggerBuilder;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationListener;
+import org.springframework.context.event.ContextRefreshedEvent;
+import org.springframework.stereotype.Component;
+
+@Component
+public class JobInitializer implements ApplicationListener<ContextRefreshedEvent> {
+
+    @Autowired
+    private ApplicationJobRepository jobRepository;
+
+    @Autowired
+    private Scheduler scheduler;
+
+    @Override
+    public void onApplicationEvent(ContextRefreshedEvent event) {
+        for (ApplicationJob job : jobRepository.findAll()) {
+            if (job.isEnabled() && (job.getCompleted() == null || !job.getCompleted())) {
+                JobDetail detail = JobBuilder.newJob(SampleJob.class)
+                  .withIdentity(job.getName(), "appJobs")
+                  .storeDurably()
+                  .build();
+
+                Trigger trigger = TriggerBuilder.newTrigger()
+                  .forJob(detail)
+                  .withSchedule(SimpleScheduleBuilder.simpleSchedule()
+                    .withIntervalInSeconds(30)
+                    .repeatForever())
+                  .build();
+
+                try {
+                    scheduler.scheduleJob(detail, trigger);
+                } catch (SchedulerException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
+    }
+}
diff --git a/spring-quartz/src/main/resources/application-recovery.properties b/spring-quartz/src/main/resources/application-recovery.properties
@@ -0,0 +1,12 @@
+spring.quartz.job-store-type=jdbc
+# Always create the Quartz database on startup
+spring.quartz.jdbc.initialize-schema=always
+
+spring.datasource.jdbc-url=jdbc:h2:~/quartz-db;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+
+spring.jpa.hibernate.ddl-auto=create
+
+spring.h2.console.enabled=true
diff --git a/spring-quartz/src/test/java/org/baeldung/recovery/SpringQuartzRecoveryAppUnitTest.java b/spring-quartz/src/test/java/org/baeldung/recovery/SpringQuartzRecoveryAppUnitTest.java
@@ -0,0 +1,54 @@
+package org.baeldung.recovery;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+import org.quartz.JobDetail;
+import org.quartz.JobKey;
+import org.quartz.Scheduler;
+import org.quartz.Trigger;
+import org.quartz.TriggerKey;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.ActiveProfiles;
+
+@ActiveProfiles("recovery")
+@SpringBootTest(classes = SpringQuartzRecoveryApp.class)
+class SpringQuartzRecoveryAppUnitTest {
+
+	@Autowired
+	private ApplicationContext applicationContext;
+
+	@Autowired
+	private Scheduler scheduler;
+
+	@Test
+	void givenSampleJob_whenSchedulerRestart_thenSampleJobIsReloaded() throws Exception {
+		// Given
+		JobKey jobKey = new JobKey("sampleJob", "group1");
+		TriggerKey triggerKey = new TriggerKey("sampleTrigger", "group1");
+
+		JobDetail jobDetail = scheduler.getJobDetail(jobKey);
+		assertNotNull(jobDetail, "SampleJob exists in running scheduler");
+
+		Trigger trigger = scheduler.getTrigger(triggerKey);
+		assertNotNull(trigger, "SampleTrigger exists in running scheduler");
+
+		// When
+		scheduler.standby();
+		Scheduler restartedScheduler = applicationContext.getBean(Scheduler.class);
+		restartedScheduler.start();
+
+		// Then
+		assertTrue(restartedScheduler.isStarted(), "Scheduler should be running after restart");
+
+		JobDetail reloadedJob = restartedScheduler.getJobDetail(jobKey);
+		assertNotNull(reloadedJob, "SampleJob should be reloaded from DB after restart");
+
+		Trigger reloadedTrigger = restartedScheduler.getTrigger(triggerKey);
+		assertNotNull(reloadedTrigger, "SampleTrigger should be reloaded from DB after restart");
+	}
+
+}