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java.lang.Object com.cloudera.crunch.lib.JoinUtils
public class JoinUtils
Utilities that are useful in joining multiple data sets via a MapReduce.
Nested Class Summary | |
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static class |
JoinUtils.AvroIndexedRecordPartitioner
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static class |
JoinUtils.AvroPairGroupingComparator<T>
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static class |
JoinUtils.TupleWritableComparator
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static class |
JoinUtils.TupleWritablePartitioner
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Constructor Summary | |
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JoinUtils()
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Method Summary | |
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static Class<? extends org.apache.hadoop.io.RawComparator> |
getGroupingComparator(PTypeFamily typeFamily)
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static Class<? extends org.apache.hadoop.mapreduce.Partitioner> |
getPartitionerClass(PTypeFamily typeFamily)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JoinUtils()
Method Detail |
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public static Class<? extends org.apache.hadoop.mapreduce.Partitioner> getPartitionerClass(PTypeFamily typeFamily)
public static Class<? extends org.apache.hadoop.io.RawComparator> getGroupingComparator(PTypeFamily typeFamily)
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