Deprecate the Map-based JobRepository and JobExplorer

This commit deprecates the Map-based JobRepository
and JobExplorer factory beans with the associated
DAOs in favor of using the JDBC-based implementations
with an in-memory database.

Resolves #3780

Author: fmbenhassine

spring-batch-core/src/main/java/org/springframework/batch/core/explore/support/MapJobExplorerFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2013 the original author or authors.
+ * Copyright 2006-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,8 +31,13 @@
  * {@link SimpleJobExplorer} using in-memory DAO implementations.
  *
  * @author Dave Syer
+ * @author Mahmoud Ben Hassine
  * @since 2.0
+ * 
+ * @deprecated as of v4.3 in favor of using the {@link JobExplorerFactoryBean}
+ * with an in-memory database. Scheduled for removal in v5.0.
  */
+@Deprecated
 public class MapJobExplorerFactoryBean extends AbstractJobExplorerFactoryBean implements InitializingBean {
 
 	private MapJobRepositoryFactoryBean repositoryFactory;

spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/MapExecutionContextDao.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2018 the original author or authors.
+ * Copyright 2006-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,8 +34,12 @@
  * @author Dave Syer
  * @author David Turanski
  * @author Mahmoud Ben Hassine
+ * 
+ * @deprecated as of v4.3 in favor of using the {@link JdbcExecutionContextDao}
+ * with an in-memory database. Scheduled for removal in v5.0.
  */
 @SuppressWarnings("serial")
+@Deprecated
 public class MapExecutionContextDao implements ExecutionContextDao {
 
 	private final ConcurrentMap<ContextKey, ExecutionContext> contexts = TransactionAwareProxyFactory

spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/MapJobExecutionDao.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2019 the original author or authors.
+ * Copyright 2006-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,7 +35,11 @@
 
 /**
  * In-memory implementation of {@link JobExecutionDao}.
+ * 
+ * @deprecated as of v4.3 in favor of using the {@link JdbcJobExecutionDao}
+ * with an in-memory database. Scheduled for removal in v5.0.
  */
+@Deprecated
 public class MapJobExecutionDao implements JobExecutionDao {
 
 	// JDK6 Make this into a ConcurrentSkipListMap: adds and removes tend to be very near the front or back

spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/MapJobInstanceDao.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2019 the original author or authors.
+ * Copyright 2006-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,7 +35,11 @@
 
 /**
  * In-memory implementation of {@link JobInstanceDao}.
+ * 
+ * @deprecated as of v4.3 in favor of using the {@link JdbcJobInstanceDao}
+ * with an in-memory database. Scheduled for removal in v5.0.
  */
+@Deprecated
 public class MapJobInstanceDao implements JobInstanceDao {
 	private static final String STAR_WILDCARD = "\\*";
 	private static final String STAR_WILDCARD_PATTERN = ".*";

spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/MapStepExecutionDao.java

@@ -37,7 +37,11 @@
 
 /**
  * In-memory implementation of {@link StepExecutionDao}.
+ * 
+ * @deprecated as of v4.3 in favor of using the {@link JdbcStepExecutionDao}
+ * with an in-memory database. Scheduled for removal in v5.0.
  */
+@Deprecated
 public class MapStepExecutionDao implements StepExecutionDao {
 
 	private Map<Long, Map<Long, StepExecution>> executionsByJobExecutionId = new ConcurrentHashMap<>();

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2014 the original author or authors.
+ * Copyright 2006-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -39,7 +39,12 @@
  * multi-threaded step.
  * 
  * @author Robert Kasanicky
+ * @author Mahmoud Ben Hassine
+ * 
+ * @deprecated as of v4.3 in favor or using the {@link JobRepositoryFactoryBean}
+ * with an in-memory database. Scheduled for removal in v5.0.
  */
+@Deprecated
 public class MapJobRepositoryFactoryBean extends AbstractJobRepositoryFactoryBean {
 
 	private MapJobExecutionDao jobExecutionDao;