Enumを逆引きしたい

JobEnum.java

public enum JobEnum {
	MUSICIAN(1, "ミュージシャン"),
	MODEL(2, "モデル"),

	private Integer jobId;
	private String jobName;

	JobEnum(Integer jobId, String jobName) {
		this.jobId= jobId;
		this.jobName= jobName;
	}

	public Integer jobId() {
		return this.jobId;
	}

	public String jobName() {
		return this.jobName;
	}

	public static JobEnum getJobEnum(Integer jobId) {
		for (JobEnum job : JobEnum.values()) {
			if (job.jobId().equals(jobId)) {
				return job;
			}
		}
		return null;
	}

	public static JobEnum getJobEnum(String jobName) {
		for (JobEnum job : JobEnum.values()) {
			if (job.jobName.equals(jobName)) {
				return job;
			}
		}
		return null;
	}
}