Add isolationLevelForCreate attribute in EnableBatchProcessing

Related to #3942

Author: fmbenhassine

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/annotation/BatchRegistrar.java

@@ -117,6 +117,11 @@ private void registerJobRepository(BeanDefinitionRegistry registry, EnableBatchP
 			beanDefinitionBuilder.addPropertyValue("tablePrefix", tablePrefix);
 		}
 
+		String isolationLevelForCreate = batchAnnotation.isolationLevelForCreate();
+		if (isolationLevelForCreate != null) {
+			beanDefinitionBuilder.addPropertyValue("isolationLevelForCreate", isolationLevelForCreate);
+		}
+
 		beanDefinitionBuilder.addPropertyValue("maxVarCharLength", batchAnnotation.maxVarCharLength());
 		beanDefinitionBuilder.addPropertyValue("clobType", batchAnnotation.clobType());
 		registry.registerBeanDefinition("jobRepository", beanDefinitionBuilder.getBeanDefinition());

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/annotation/EnableBatchProcessing.java

@@ -47,9 +47,6 @@
  * @Import(DataSourceConfiguration.class)
  * public class AppConfig {
  *
- * 	@Autowired
- * 	private JobRepository jobRepository;
- *
  * 	@Bean
  * 	public Job job(JobRepository jobRepository) {
  * 		return new JobBuilder("myJob").repository(jobRepository).start(step1()).next(step2()).build();
@@ -75,7 +72,7 @@
  * Note that only one of your configuration classes needs to have the
  * <code>&#064;EnableBatchProcessing</code> annotation. Once you have an
  * <code>&#064;EnableBatchProcessing</code> class in your configuration, you have an
- * instance of {@link StepScope} and
+ * instance of {@link org.springframework.batch.core.scope.StepScope} and
  * {@link org.springframework.batch.core.scope.JobScope}, so your beans inside steps can
  * have <code>&#064;Scope("step")</code> and <code>&#064;Scope("job")</code> respectively.
  * You can also use <code>&#064;Autowired</code> to insert some useful beans into your
@@ -224,6 +221,13 @@
 	 */
 	int clobType() default Types.CLOB;
 
+	/**
+	 * Set the isolation level for create parameter value. Defaults to
+	 * {@literal ISOLATION_SERIALIZABLE}.
+	 * @return the value of the isolation level for create parameter
+	 */
+	String isolationLevelForCreate() default "ISOLATION_SERIALIZABLE";
+
 	/**
 	 * Set the task executor to use in the job launcher.
 	 * @return the bean name of the task executor to use. Defaults to