Implement default methods in SimpleJobRepository

Resolves #4229

spring-batch-core/src/main/java/org/springframework/batch/core/repository/support/SimpleJobRepository.java

@@ -87,6 +87,21 @@ public class SimpleJobRepository implements JobRepository {
 		this.ecDao = ecDao;
 	}
 
+	@Override
+	public List<String> getJobNames() {
+		return this.jobInstanceDao.getJobNames();
+	}
+
+	@Override
+	public List<JobInstance> findJobInstancesByName(String jobName, int start, int count) {
+		return this.jobInstanceDao.findJobInstancesByName(jobName, start, count);
+	}
+
+	@Override
+	public List<JobExecution> findJobExecutions(JobInstance jobInstance) {
+		return this.jobExecutionDao.findJobExecutions(jobInstance);
+	}
+
 	@Override
 	public boolean isJobInstanceExists(String jobName, JobParameters jobParameters) {
 		return jobInstanceDao.getJobInstance(jobName, jobParameters) != null;

spring-batch-core/src/test/java/org/springframework/batch/core/repository/support/SimpleJobRepositoryTests.java

@@ -130,6 +130,38 @@ class SimpleJobRepositoryTests {
 		jobExecution = new JobExecution(new JobInstance(1L, job.getName()), 1L, jobParameters);
 	}
 
+	@Test
+	void testGetJobNames() {
+		// when
+		this.jobRepository.getJobNames();
+
+		// then
+		verify(this.jobInstanceDao).getJobNames();
+	}
+
+	@Test
+	void testFindJobInstancesByName() {
+		// given
+		String jobName = "job";
+		int start = 1;
+		int count = 10;
+
+		// when
+		this.jobRepository.findJobInstancesByName(jobName, start, count);
+
+		// then
+		verify(this.jobInstanceDao).findJobInstancesByName(jobName, start, count);
+	}
+
+	@Test
+	void testFindJobExecutions() {
+		// when
+		this.jobRepository.findJobExecutions(this.jobInstance);
+
+		// then
+		verify(this.jobExecutionDao).findJobExecutions(this.jobInstance);
+	}
+
 	@Test
 	void testSaveOrUpdateInvalidJobExecution() {