Update javadocs

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

@@ -24,7 +24,11 @@ import org.springframework.batch.core.converter.JobParametersConverter;
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.context.annotation.Import;
 
-import java.lang.annotation.*;
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
 
 /**
  * <p>
@@ -36,7 +40,6 @@ import java.lang.annotation.*;
  * <pre class="code">
  * &#064;Configuration
  * &#064;EnableBatchProcessing
- * &#064;Import(DataSourceConfiguration.class)
  * public class AppConfig {
  *
  *     &#064;Bean
@@ -72,18 +75,18 @@ import java.lang.annotation.*;
  *
  * <ul>
  * <li>a {@link JobRepository} (bean name "jobRepository" of type
- * {@link org.springframework.batch.core.repository.support.SimpleJobRepository})</li>
+ * {@link org.springframework.batch.core.repository.support.ResourcelessJobRepository})</li>
  * <li>a {@link JobRegistry} (bean name "jobRegistry" of type
  * {@link org.springframework.batch.core.configuration.support.MapJobRegistry})</li>
  * <li>a {@link org.springframework.batch.core.launch.JobOperator} (bean name
  * "jobOperator" of type
  * {@link org.springframework.batch.core.launch.support.TaskExecutorJobOperator})</li>
- * <li>a
- * {@link org.springframework.batch.core.configuration.support.JobRegistrySmartInitializingSingleton}
- * (bean name "jobRegistrySmartInitializingSingleton" of type
- * {@link org.springframework.batch.core.configuration.support.JobRegistrySmartInitializingSingleton})</li>
  * </ul>
  *
+ * Other configuration types like JDBC-based or MongoDB-based batch infrastructures can be
+ * defined using store specific annotations like {@link EnableJdbcJobRepository} or
+ * {@link EnableMongoJobRepository}.
+ *
  * If the configuration is specified as <code>modular=true</code>, the context also
  * contains an {@link AutomaticJobRegistrar}. The job registrar is useful for modularizing
  * your configuration if there are multiple jobs. It works by creating separate child
@@ -141,7 +144,8 @@ import java.lang.annotation.*;
  * @author Dave Syer
  * @author Mahmoud Ben Hassine
  * @author Taeik Lim
- *
+ * @see EnableJdbcJobRepository
+ * @see EnableMongoJobRepository
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)

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

@@ -17,6 +17,8 @@ package org.springframework.batch.core.configuration.annotation;
 
 import org.springframework.batch.core.repository.dao.AbstractJdbcBatchMetadataDao;
 import org.springframework.batch.support.DatabaseType;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jdbc.core.JdbcOperations;
 import org.springframework.jdbc.datasource.DataSourceTransactionManager;
 import org.springframework.transaction.annotation.Isolation;
 
@@ -27,6 +29,23 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 import java.sql.Types;
 
+import javax.sql.DataSource;
+
+/**
+ * Annotation to enable a JDBC-based infrastructure in a Spring Batch application.
+ * <p>
+ * This annotation should be used on a {@link Configuration @Configuration} class
+ * annotated with {@link EnableBatchProcessing }. It will automatically configure the
+ * necessary beans for a JDBC-based infrastructure, including a job repository.
+ * <p>
+ * The default configuration assumes that a {@link DataSource} bean named "dataSource" and
+ * a {@link DataSourceTransactionManager} bean named "transactionManager" are available in
+ * the application context.
+ *
+ * @author Mahmoud Ben Hassine
+ * @since 6.0
+ * @see EnableBatchProcessing
+ */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)
 @Documented
@@ -62,13 +81,15 @@ public @interface EnableJdbcJobRepository {
 	String charset() default "UTF-8";
 
 	/**
-	 * The Batch tables prefix. Defaults to {@literal "BATCH_"}.
+	 * The Batch tables prefix. Defaults to
+	 * {@link AbstractJdbcBatchMetadataDao#DEFAULT_TABLE_PREFIX}.
 	 * @return the Batch table prefix
 	 */
 	String tablePrefix() default AbstractJdbcBatchMetadataDao.DEFAULT_TABLE_PREFIX;
 
 	/**
-	 * The maximum length of exit messages in the database.
+	 * The maximum length of exit messages in the database. Defaults to
+	 * {@link AbstractJdbcBatchMetadataDao#DEFAULT_EXIT_MESSAGE_LENGTH}
 	 * @return the maximum length of exit messages in the database
 	 */
 	int maxVarCharLength() default AbstractJdbcBatchMetadataDao.DEFAULT_EXIT_MESSAGE_LENGTH;
@@ -92,6 +113,11 @@ public @interface EnableJdbcJobRepository {
 	 */
 	String transactionManagerRef() default "transactionManager";
 
+	/**
+	 * Set the {@link JdbcOperations} to use in the job repository.
+	 * @return the bean name of the {@link JdbcOperations} to use. Defaults to
+	 * {@literal jdbcTemplate}.
+	 */
 	String jdbcOperationsRef() default "jdbcTemplate";
 
 	/**

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

@@ -15,7 +15,9 @@
  */
 package org.springframework.batch.core.configuration.annotation;
 
+import org.springframework.context.annotation.Configuration;
 import org.springframework.data.mongodb.MongoTransactionManager;
+import org.springframework.data.mongodb.core.MongoOperations;
 import org.springframework.transaction.annotation.Isolation;
 
 import java.lang.annotation.Documented;
@@ -24,6 +26,21 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+/**
+ * * Annotation to enable a MongoDB-based job repository in a Spring Batch application.
+ * <p>
+ * This annotation should be used on a {@link Configuration @Configuration} class
+ * annotated with {@link EnableBatchProcessing}. It will automatically configure the
+ * necessary beans for a MongoDB-based infrastructure, including a job repository.
+ * <p>
+ * The default configuration assumes that a {@link MongoOperations} bean named
+ * "mongoTemplate" and a {@link MongoTransactionManager} bean named "transactionManager"
+ * are available in the application context.
+ *
+ * @author Mahmoud Ben Hassine
+ * @since 6.0
+ * @see EnableBatchProcessing
+ */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)
 @Documented

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/DefaultBatchConfiguration.java

@@ -49,7 +49,7 @@ import org.springframework.transaction.annotation.Isolation;
  * <ul>
  * <li>a {@link ResourcelessJobRepository} named "jobRepository"</li>
  * <li>a {@link MapJobRegistry} named "jobRegistry"</li>
- * <li>a {@link TaskExecutorJobOperator} named "JobOperator"</li>
+ * <li>a {@link TaskExecutorJobOperator} named "jobOperator"</li>
  * <li>a {@link org.springframework.batch.core.scope.StepScope} named "stepScope"</li>
  * <li>a {@link org.springframework.batch.core.scope.JobScope} named "jobScope"</li>
  * </ul>

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/JdbcDefaultBatchConfiguration.java

@@ -62,9 +62,7 @@ import java.sql.Types;
  * <ul>
  * <li>a {@link JobRepository} named "jobRepository"</li>
  * <li>a {@link JobRegistry} named "jobRegistry"</li>
- * <li>a {@link JobOperator} named "JobOperator"</li>
- * <li>a {@link JobRegistrySmartInitializingSingleton} named
- * "jobRegistrySmartInitializingSingleton"</li>
+ * <li>a {@link JobOperator} named "jobOperator"</li>
  * <li>a {@link org.springframework.batch.core.scope.StepScope} named "stepScope"</li>
  * <li>a {@link org.springframework.batch.core.scope.JobScope} named "jobScope"</li>
  * </ul>

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/support/MongoDefaultBatchConfiguration.java

@@ -35,9 +35,7 @@ import org.springframework.data.mongodb.core.MongoOperations;
  * <ul>
  * <li>a {@link JobRepository} named "jobRepository"</li>
  * <li>a {@link JobRegistry} named "jobRegistry"</li>
- * <li>a {@link JobOperator} named "JobOperator"</li>
- * <li>a {@link JobRegistrySmartInitializingSingleton} named
- * "jobRegistrySmartInitializingSingleton"</li>
+ * <li>a {@link JobOperator} named "jobOperator"</li>
  * <li>a {@link org.springframework.batch.core.scope.StepScope} named "stepScope"</li>
  * <li>a {@link org.springframework.batch.core.scope.JobScope} named "jobScope"</li>
  * </ul>