MongoJobRepositoryFactoryBean requirement for MapKeyDotReplacement should be enforced

@mp911de

The Javadoc of MongoJobRepositoryFactoryBean provides all the need that you need

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

Lines 33 to 37 in 0c91fa4

    
            * template and a mongo transaction manager. <strong>The mongo template must be configured 
        
            * with a {@link MappingMongoConverter} having a {@code MapKeyDotReplacement} set to a non 
        
            * null value. See {@code MongoDBJobRepositoryIntegrationTests} for an example. This is 
        
            * required to support execution context keys containing dots (like "step.type" or 
        
            * "batch.version")</strong>

However, this concretely makes you create a MongoTemplate for the purpose of Spring Batch as such requirement is unusual.

I am not an expert but asked @mp911de and he's suggesting to:

not use dots in field/property names and instead do the translation differently, by e.g. creating a subdocument after a property terminates at a dot.

If that's not practical, I'd suggest to deprecate protected MongoOperations getMongoOperations() and create one using MongoDatabaseFactory (that should be provided as a new getter).

I would like to work on this issue. Based on the discussion, I understand this involves either:

Not using dots in field/property names and using subdocuments instead, OR
Deprecating getMongoOperations() and creating MongoTemplate using MongoDatabaseFactory

Let me investigate the codebase and propose a solution.

Fix spring-projects#5346: Add MongoDatabaseFactory support to MongoJo…

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MongoJobRepositoryFactoryBean requirement for MapKeyDotReplacement should be enforced #5346

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	* template and a mongo transaction manager. <strong>The mongo template must be configured
	* with a {@link MappingMongoConverter} having a {@code MapKeyDotReplacement} set to a non
	* null value. See {@code MongoDBJobRepositoryIntegrationTests} for an example. This is
	* required to support execution context keys containing dots (like "step.type" or
	* "batch.version")</strong>

MongoJobRepositoryFactoryBean requirement for MapKeyDotReplacement should be enforced #5346

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nikitanagar08 commented on Mar 19, 2026

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