本文整理了Java中org.apache.hadoop.mapred.lib.MultipleOutputs.getNamedOutputKeyClass()方法的一些代码示例，展示了MultipleOutputs.getNamedOutputKeyClass()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。MultipleOutputs.getNamedOutputKeyClass()方法的具体详情如下：
包路径：org.apache.hadoop.mapred.lib.MultipleOutputs
类名称：MultipleOutputs
方法名：getNamedOutputKeyClass

MultipleOutputs.getNamedOutputKeyClass介绍

[英]Returns the key class for a named output.
[中]返回命名输出的键类。

代码示例

代码示例来源：origin: io.hops/hadoop-mapreduce-client-core

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}

代码示例来源：origin: com.github.jiayuhan-it/hadoop-mapreduce-client-core

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}

代码示例来源：origin: ch.cern.hadoop/hadoop-mapreduce-client-core

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}

代码示例来源：origin: org.jvnet.hudson.hadoop/hadoop-core

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}

代码示例来源：origin: com.facebook.hadoop/hadoop-core

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}

代码示例来源：origin: org.apache.hadoop/hadoop-mapred

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}

代码示例来源：origin: io.prestosql.hadoop/hadoop-apache

@SuppressWarnings({"unchecked"})
 public RecordWriter<Object, Object> getRecordWriter(
  FileSystem fs, JobConf job, String baseFileName, Progressable progress)
  throws IOException {
  String nameOutput = job.get(CONFIG_NAMED_OUTPUT, null);
  String fileName = getUniqueName(job, baseFileName);
  // The following trick leverages the instantiation of a record writer via
  // the job conf thus supporting arbitrary output formats.
  JobConf outputConf = new JobConf(job);
  outputConf.setOutputFormat(getNamedOutputFormatClass(job, nameOutput));
  outputConf.setOutputKeyClass(getNamedOutputKeyClass(job, nameOutput));
  outputConf.setOutputValueClass(getNamedOutputValueClass(job, nameOutput));
  OutputFormat outputFormat = outputConf.getOutputFormat();
  return outputFormat.getRecordWriter(fs, outputConf, fileName, progress);
 }
}