public Builder setJobId(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      jobId_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
Required. The optional `job_id` for this Job . If not
specified, an id is generated. `job_id` should be no more than 128
characters and must include only characters available in DNS names, as
defined by RFC-1123.
</pre>

<code>string job_id = 2 [(.google.api.field_behavior) = REQUIRED];</code>

@param value The jobId to set.
@return This builder for chaining.
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/CreateJobRequest.java