> For the complete documentation index, see [llms.txt](https://rxjs.gitbook.io/rx-txjs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rxjs.gitbook.io/rx-txjs/class/txjob.md).

# TxJob

* A class able to store several components and execute them as a chain.
* First task send to the first component, it's reply send to the second component and so on.

> **IMPORTANT**: after finishing using a job to MUST call to release method on the job otherwise you will suffer memory leaks as well as un necessary callbacks calling.

For example a job may looks like that:

```
import { TxMountPointRegistry } from '../src/tx-mountpoint-registry';
 
class Names {
  static GITHUB_GIST_C1 = Symbol('GITHUB_GIST_C1');
  static GITHUB_GIST_C2 = Symbol('GITHUB_GIST_C2');
  static GITHUB_GIST_C3 = Symbol('GITHUB_GIST_C3');
}
 
let job = new TxJob(); // or create througth the TxJobRegistry
 
job.add(TxMountPointRegistry.instance.create(Names.GITHUB_GIST_C1));
job.add(TxMountPointRegistry.instance.create(Names.GITHUB_GIST_C2));
job.add(TxMountPointRegistry.instance.create(Names.GITHUB_GIST_C3));
 
job.execute(new TxTask(
  'create',
  '',
  {something: 'more data here'})
);
```