229 lines
5.9 KiB
Plaintext
229 lines
5.9 KiB
Plaintext
---
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title: AerJob (v0.29)
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description: API reference for qiskit.providers.aer.AerJob in qiskit v0.29
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.providers.aer.AerJob
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---
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# AerJob
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<Class id="qiskit.providers.aer.AerJob" isDedicatedPage={true} github="https://github.com/qiskit/qiskit-aer/tree/stable/0.8/qiskit/providers/aer/aerjob.py" signature="AerJob(backend, job_id, fn, qobj, *args)" modifiers="class">
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Bases: `qiskit.providers.job.JobV1`
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AerJob class.
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### \_executor
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<Attribute id="qiskit.providers.aer.AerJob._executor">
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executor to handle asynchronous jobs
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**Type**
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futures.Executor
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</Attribute>
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Initializes the asynchronous job.
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**Parameters**
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* **backend** – the backend used to run the job.
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* **job\_id** – a unique id in the context of the backend used to run the job.
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* **kwargs** – Any key value metadata to associate with this job.
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## Methods
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<span id="qiskit-providers-aer-aerjob-backend" />
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### backend
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<Function id="qiskit.providers.aer.AerJob.backend" signature="AerJob.backend()">
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Return the instance of the backend used for this job.
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</Function>
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<span id="qiskit-providers-aer-aerjob-cancel" />
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### cancel
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<Function id="qiskit.providers.aer.AerJob.cancel" signature="AerJob.cancel()">
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Attempt to cancel the job.
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</Function>
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<span id="qiskit-providers-aer-aerjob-cancelled" />
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### cancelled
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<Function id="qiskit.providers.aer.AerJob.cancelled" signature="AerJob.cancelled()">
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Return whether the job has been cancelled.
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**Return type**
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`bool`
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</Function>
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<span id="qiskit-providers-aer-aerjob-done" />
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### done
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<Function id="qiskit.providers.aer.AerJob.done" signature="AerJob.done()">
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Return whether the job has successfully run.
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**Return type**
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`bool`
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</Function>
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<span id="qiskit-providers-aer-aerjob-in-final-state" />
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### in\_final\_state
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<Function id="qiskit.providers.aer.AerJob.in_final_state" signature="AerJob.in_final_state()">
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Return whether the job is in a final job state such as `DONE` or `ERROR`.
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**Return type**
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`bool`
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</Function>
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<span id="qiskit-providers-aer-aerjob-job-id" />
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### job\_id
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<Function id="qiskit.providers.aer.AerJob.job_id" signature="AerJob.job_id()">
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Return a unique id identifying the job.
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**Return type**
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`str`
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</Function>
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<span id="qiskit-providers-aer-aerjob-qobj" />
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### qobj
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<Function id="qiskit.providers.aer.AerJob.qobj" signature="AerJob.qobj()">
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Return the Qobj submitted for this job.
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**Returns**
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the Qobj submitted for this job.
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**Return type**
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[Qobj](qiskit.qobj.Qobj "qiskit.qobj.Qobj")
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</Function>
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<span id="qiskit-providers-aer-aerjob-result" />
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### result
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<Function id="qiskit.providers.aer.AerJob.result" signature="AerJob.result(timeout=None)">
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Get job result. The behavior is the same as the underlying concurrent Future objects,
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[https://docs.python.org/3/library/concurrent.futures.html#future-objects](https://docs.python.org/3/library/concurrent.futures.html#future-objects)
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**Parameters**
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**timeout** (*float*) – number of seconds to wait for results.
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**Returns**
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Result object
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**Return type**
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qiskit.Result
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**Raises**
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* **concurrent.futures.TimeoutError** – if timeout occurred.
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* **concurrent.futures.CancelledError** – if job cancelled before completed.
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</Function>
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<span id="qiskit-providers-aer-aerjob-running" />
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### running
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<Function id="qiskit.providers.aer.AerJob.running" signature="AerJob.running()">
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Return whether the job is actively running.
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**Return type**
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`bool`
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</Function>
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<span id="qiskit-providers-aer-aerjob-status" />
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### status
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<Function id="qiskit.providers.aer.AerJob.status" signature="AerJob.status()">
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Gets the status of the job by querying the Python’s future
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**Returns**
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The current JobStatus
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**Return type**
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[JobStatus](qiskit.providers.JobStatus "qiskit.providers.JobStatus")
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**Raises**
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* [**JobError**](qiskit.providers.JobError "qiskit.providers.JobError") – If the future is in unexpected state
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* **concurrent.futures.TimeoutError** – if timeout occurred.
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</Function>
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<span id="qiskit-providers-aer-aerjob-submit" />
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### submit
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<Function id="qiskit.providers.aer.AerJob.submit" signature="AerJob.submit()">
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Submit the job to the backend for execution.
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**Raises**
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* **QobjValidationError** – if the JSON serialization of the Qobj passed
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* **during construction does not validate against the Qobj schema.** –
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* [**JobError**](qiskit.providers.JobError "qiskit.providers.JobError") – if trying to re-submit the job.
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</Function>
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<span id="qiskit-providers-aer-aerjob-wait-for-final-state" />
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### wait\_for\_final\_state
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<Function id="qiskit.providers.aer.AerJob.wait_for_final_state" signature="AerJob.wait_for_final_state(timeout=None, wait=5, callback=None)">
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Poll the job status until it progresses to a final state such as `DONE` or `ERROR`.
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**Parameters**
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* **timeout** (`Optional`\[`float`]) – Seconds to wait for the job. If `None`, wait indefinitely.
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* **wait** (`float`) – Seconds between queries.
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* **callback** (`Optional`\[`Callable`]) –
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Callback function invoked after each query. The following positional arguments are provided to the callback function:
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* job\_id: Job ID
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* job\_status: Status of the job from the last query
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* job: This BaseJob instance
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Note: different subclass might provide different arguments to the callback function.
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**Raises**
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[**JobTimeoutError**](qiskit.providers.JobTimeoutError "qiskit.providers.JobTimeoutError") – If the job does not reach a final state before the specified timeout.
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**Return type**
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`None`
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</Function>
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## Attributes
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### version
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<Attribute id="qiskit.providers.aer.AerJob.version" attributeValue="1" />
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</Class>
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