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Chapter 43. JTA
Enclose Camel routes in transactions using Java Transaction API (JTA) and Narayana transaction manager
43.1. What’s inside
Please refer to the above link for usage and configuration details.
43.2. Maven coordinates
Create a new project with this extension on code.quarkus.redhat.com
Or add the coordinates to your existing project:
<dependency>
<groupId>org.apache.camel.quarkus</groupId>
<artifactId>camel-quarkus-jta</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel.quarkus</groupId>
<artifactId>camel-quarkus-jta</artifactId>
</dependency>43.3. Usage
This extension should be added when you need to use the transacted() EIP in the router. It leverages the transaction capabilities provided by the narayana-jta extension in Quarkus.
Refer to the Quarkus Transaction guide for the more details about transaction support. For a simple usage:
from("direct:transaction")
.transacted()
.to("sql:INSERT INTO A TABLE ...?dataSource=ds1")
.to("sql:INSERT INTO A TABLE ...?dataSource=ds2")
.log("all data are in the ds1 and ds2")
from("direct:transaction")
.transacted()
.to("sql:INSERT INTO A TABLE ...?dataSource=ds1")
.to("sql:INSERT INTO A TABLE ...?dataSource=ds2")
.log("all data are in the ds1 and ds2")Support is provided for various transaction policies.
| Policy | Description |
|---|---|
|
| Support a current transaction; throw an exception if no current transaction exists. |
|
| Do not support a current transaction; throw an exception if a current transaction exists. |
|
| Do not support a current transaction; rather always execute non-transactionally. |
|
| Support a current transaction; create a new one if none exists. |
|
| Create a new transaction, suspending the current transaction if one exists. |
|
| Support a current transaction; execute non-transactionally if none exists. |
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