[[ignite-queue-component]]
== Ignite Queues Component

*Available as of Camel version 2.17*

The Ignite Queue endpoint is one of camel-ignite endpoints which allows you to interact with https://apacheignite.readme.io/docs/queue-and-set[Ignite Queue data structures].

This endpoint only supports producers.

### Options

// component options: START
The Ignite Queues component supports 4 options, which are listed below.



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|===
| Name | Description | Default | Type
| *ignite* (producer) | Sets the Ignite instance. |  | Ignite
| *configurationResource* (producer) | Sets the resource from where to load the configuration. It can be a: URI, String (URI) or an InputStream. |  | Object
| *igniteConfiguration* (producer) | Allows the user to set a programmatic IgniteConfiguration. |  | IgniteConfiguration
| *resolveProperty Placeholders* (advanced) | Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. | true | boolean
|===
// component options: END

// endpoint options: START
The Ignite Queues endpoint is configured using URI syntax:

----
ignite-queue:name
----

with the following path and query parameters:

==== Path Parameters (1 parameters):


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|===
| Name | Description | Default | Type
| *name* | *Required* The queue name. |  | String
|===


==== Query Parameters (7 parameters):


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|===
| Name | Description | Default | Type
| *capacity* (producer) | The queue capacity. Default: non-bounded. |  | int
| *configuration* (producer) | The collection configuration. Default: empty configuration. You can also conveniently set inner properties by using configuration.xyz=123 options. |  | CollectionConfiguration
| *operation* (producer) | The operation to invoke on the Ignite Queue. Superseded by the IgniteConstants.IGNITE_QUEUE_OPERATION header in the IN message. Possible values: CONTAINS, ADD, SIZE, REMOVE, ITERATOR, CLEAR, RETAIN_ALL, ARRAY, DRAIN, ELEMENT, PEEK, OFFER, POLL, TAKE, PUT. |  | IgniteQueueOperation
| *propagateIncomingBodyIfNo ReturnValue* (producer) | Sets whether to propagate the incoming body if the return type of the underlying Ignite operation is void. | true | boolean
| *timeoutMillis* (producer) | The queue timeout in milliseconds. Default: no timeout. |  | Long
| *treatCollectionsAsCache Objects* (producer) | Sets whether to treat Collections as cache objects or as Collections of items to insert/update/compute, etc. | false | boolean
| *synchronous* (advanced) | Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). | false | boolean
|===
// endpoint options: END
// spring-boot-auto-configure options: START
=== Spring Boot Auto-Configuration

When using Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

[source,xml]
----
<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-ignite-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>
----


The component supports 5 options, which are listed below.



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|===
| Name | Description | Default | Type
| *camel.component.ignite-queue.configuration-resource* | Sets the resource from where to load the configuration. It can be a: URI, String (URI) or an InputStream. The option is a java.lang.Object type. |  | String
| *camel.component.ignite-queue.enabled* | Enable ignite-queue component | true | Boolean
| *camel.component.ignite-queue.ignite* | Sets the Ignite instance. The option is a org.apache.ignite.Ignite type. |  | String
| *camel.component.ignite-queue.ignite-configuration* | Allows the user to set a programmatic IgniteConfiguration. The option is a org.apache.ignite.configuration.IgniteConfiguration type. |  | String
| *camel.component.ignite-queue.resolve-property-placeholders* | Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. | true | Boolean
|===
// spring-boot-auto-configure options: END




#### Headers used

This endpoint uses the following headers:
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|=======================================================================
| Header name | Constant | Expected type | Description
| CamelIgniteQueueOperation | IgniteConstants.IGNITE_QUEUE_OPERATION | IgniteQueueOperation enum |
Allows you to dynamically change the queue operation.

| CamelIgniteQueueMaxElements | IgniteConstants.IGNITE_QUEUE_MAX_ELEMENTS | Integer or int |
When invoking the DRAIN operation, the amount of items to drain.

| CamelIgniteQueueTransferredCount | IgniteConstants.IGNITE_QUEUE_TRANSFERRED_COUNT | Integer or int |
The amount of items transferred as the result of the DRAIN operation.

| CamelIgniteQueueTimeoutMillis | IgniteConstants.IGNITE_QUEUE_TIMEOUT_MILLIS | Long or long |
Dynamically sets the timeout in milliseconds to use when invoking the OFFER or POLL operations. 
|=======================================================================
