TestDatamerge.java 文件源码

@SuppressWarnings("unchecked")
public void configure(JobConf job) {
  keyclass = (Class<? extends K>) job.getClass("test.fakeif.keyclass",
IncomparableKey.class, WritableComparable.class);
  valclass = (Class<? extends V>) job.getClass("test.fakeif.valclass",
NullWritable.class, WritableComparable.class);
}