本文整理匯總了Java中org.apache.hadoop.mapred.JobConf.setClassLoader方法的典型用法代碼示例。如果您正苦於以下問題：Java JobConf.setClassLoader方法的具體用法？Java JobConf.setClassLoader怎麽用？Java JobConf.setClassLoader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.mapred.JobConf的用法示例。
在下文中一共展示了JobConf.setClassLoader方法的2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: testClassLoader
import org.apache.hadoop.mapred.JobConf; //導入方法依賴的package包/類
/**
* Tests the class loader set by {@link JobConf#setClassLoader(ClassLoader)}
* is inherited by any {@link WrappedRecordReader}s created by
* {@link CompositeRecordReader}
*/
public void testClassLoader() throws Exception {
JobConf job = new JobConf();
Fake_ClassLoader classLoader = new Fake_ClassLoader();
job.setClassLoader(classLoader);
assertTrue(job.getClassLoader() instanceof Fake_ClassLoader);
FileSystem fs = FileSystem.get(job);
Path testdir = new Path(System.getProperty("test.build.data", "/tmp"))
.makeQualified(fs);
Path base = new Path(testdir, "/empty");
Path[] src = { new Path(base, "i0"), new Path("i1"), new Path("i2") };
job.set("mapreduce.join.expr", CompositeInputFormat.compose("outer",
IF_ClassLoaderChecker.class, src));
CompositeInputFormat<NullWritable> inputFormat = new CompositeInputFormat<NullWritable>();
inputFormat.getRecordReader(inputFormat.getSplits(job, 1)[0], job,
Reporter.NULL);
}
示例2: getConf
import org.apache.hadoop.mapred.JobConf; //導入方法依賴的package包/類
private JobConf getConf(JobConf job) {
JobConf conf = new JobConf(job);
FileInputFormat.setInputPaths(conf, indir);
conf.setClassLoader(job.getClassLoader());
return conf;
}