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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="mongoBean" class="com.mongodb.Mongo">
        <constructor-arg name="host" value="${mongodb.host}" />
        <constructor-arg name="port" value="${mongodb.port}" />
    </bean>
</beans>

Sample route

The following route defined in Spring XML executes the operation dbStats on a collection.In case you are using a 3.x MongoDB instance you have to use the following bean

<route>
  <from uri="direct:start" />
  <!-- using bean 'mongoBean' defined above -->
  <to uri="mongodb:mongoBean?database=${mongodb.database}&amp;collection=${mongodb.collection}&amp;operation=getDbStats" />
  <to uri="direct:result" />
</route>

MongoDB operations - producer endpoints

Query operations

findById

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.

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springframework.org/

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schema/

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beans/spring-beans.xsd">
    <bean id="mongoBean" class="com.mongodb.MongoClient">
        <constructor-arg name="host" value="${mongodb.host}" />
        <constructor-arg name="port" value="${mongodb.port}" />
    </bean>
</beans>

Sample route

The following route defined in Spring XML executes the operation dbStats on a collection.

<route>
  <from uri="direct:start" />
  <!-- using bean 'mongoBean' defined above -->
  <to uri="mongodb:mongoBean?database=${mongodb.database}&amp;collection=${mongodb.collection}&amp;operation=getDbStats" />
  <to uri="direct:result" />
</route>

MongoDB operations - producer endpoints

Query operations

findById

This operation retrieves only one element from the collection whose _id field matches the content of the IN message body. The incoming object can be anything that has an equivalent to a BSON type. See http://bsonspec.org/#/specification and http://www.mongodb.org/display/DOCS/Java+Types.

from("direct:findById

from("direct:findById")
    .to("mongodb:myDb?database=flights&collection=tickets&operation=findById")
    .to("mock:resultFindById");

findOneByQuery

Use this operation to retrieve just one element from the collection that matches a MongoDB query. The query object is extracted from the IN message body, i.e. it should be of type DBObject or convertible to DBObject. It can be a JSON String or a Hashmap. See #Type conversions for more info.

Example with no query (returns any object of the collection):

from("direct:findOneByQuery")
    .to("mongodb:myDb?database=flights&collection=tickets&operation=findOneByQuery")
    .to("mock:resultFindOneByQuery");

Example with a query (returns one matching result):

from("direct:findOneByQuery")
    .setBody().constant("{ \"name\": \"Raul Kripalani\" }")
    .to("mongodb:to("mongodb:myDb?database=flights&collection=tickets&operation=findOneByQueryfindById")
    .to("mock:resultFindOneByQueryresultFindById");

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findOneByQuery

The findAll operation returns all documents matching a query, or none at all, in which case all documents contained in the collection are returnedUse this operation to retrieve just one element from the collection that matches a MongoDB query. The query object is extracted from the IN message body, i.e. it should be of type DBObject or convertible to DBObject. It can be a JSON String or a Hashmap. See #Type conversions for more info.

Example with no query (returns all any object in of the collection):

from("direct:findAllfindOneByQuery")
    .to("mongodb:myDb?database=flights&collection=tickets&operation=findAllfindOneByQuery")
    .to("mock:resultFindAllresultFindOneByQuery");

Example with a query (returns all one matching resultsresult):

from("direct:findAllfindOneByQuery")
    .setBody().constant("{ \"name\": \"Raul Kripalani\" }")
    .to("mongodb:myDb?database=flights&collection=tickets&operation=findAllfindOneByQuery")
    .to("mock:resultFindAllresultFindOneByQuery");

Paging and efficient retrieval is supported via the following headers:

findAll

The findAll operation returns all documents matching a query. If your query is empty, all of the documents stored will match and be returned. The query object is extracted from the IN message body, i.e. it should be of type DBObject or convertible to DBObject. It can be a JSON String or a Hashmap. See #Type conversions for more info.

Example with no query (returns all documents in the collection):

from("direct:findAll")
    .to("mongodb:myDb?database=flights&collection=tickets&operation=findAll")
    .to("mock:resultFindAll");

Example with a query (returns all matching documents):

from("direct:findAll")
    .setBody().constant("{ \"name\": \"Raul Kripalani\" }")
    .to("mongodb:myDb?database=flights&collection=tickets&operation=findAll")
    .to("mock:resultFindAll");

Paging and efficient retrieval is supported via the following headers:

You can also "stream" the documents returned from the server into your route by including outputType=DBCursor (Camel 2.16+) as an endpoint option which may prove simpler than setting the above headers. This hands your Exchange the DBCursor from the Mongo driver, just as if you were executing the findAll() within the Mongo shell, allowing your route to iterate over the results. By default and without this option, this component will load the documents from the driver's cursor into a List and return this to your route - which may result in a large number of in-memory objects. Remember, with a DBCursor do not ask for the number of documents matched - see the MongoDB documentation site for details.

Additionally, you can set a sortBy criteria by putting the relevant DBObject describing your sorting in the CamelMongoDbSortBy header, quick constant: MongoDbConstants.SORT_BY.

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• MongoDB website
• NoSQL Wikipedia article
• MongoDB Java driver API docs - current version
• Unit tests for more examples of usage

https://github.com/apache/camel/blob/master/components/camel-mongodb3/src/main/docs/mongodb3-component.adoc