public static Specification<PerfTest> regionStartsWith(final String region) {
		return (Specification<PerfTest>) (root, query, cb) -> cb.like(root.get("region"), region + "%");
	}
Get the {@link Specification} checking if the {@link PerfTest} has the given region.

@param region region of perf test
@return {@link Specification}
@since 3.1
ngrinder-controller/src/main/java/org/ngrinder/perftest/repository/PerfTestSpecification.java