本文整理匯總了Java中org.apache.hadoop.io.IntWritable.compareTo方法的典型用法代碼示例。如果您正苦於以下問題：Java IntWritable.compareTo方法的具體用法？Java IntWritable.compareTo怎麽用？Java IntWritable.compareTo使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.io.IntWritable的用法示例。
在下文中一共展示了IntWritable.compareTo方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: reduce
import org.apache.hadoop.io.IntWritable; //導入方法依賴的package包/類
public void reduce(IntWritable key,
Iterator<IntWritable> values,
OutputCollector<IntWritable, Text> out,
Reporter reporter) throws IOException {
// check key order
int currentKey = key.get();
if (currentKey < lastKey) {
fail("Keys not in sorted ascending order");
}
lastKey = currentKey;
// check order of values
IntWritable previous = new IntWritable(Integer.MIN_VALUE);
int valueCount = 0;
while (values.hasNext()) {
IntWritable current = values.next();
// Check that the values are sorted
if (current.compareTo(previous) < 0)
fail("Values generated by Mapper not in order");
previous = current;
++valueCount;
}
if (valueCount != 5) {
fail("Values not grouped by primary key");
}
out.collect(key, new Text("success"));
}