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java.lang.Objectorg.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorBaseDescriptor
org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorBaseDescriptor
ValueAggregatorBaseDescriptor
instead
@Deprecated @InterfaceAudience.Public @InterfaceStability.Stable public class ValueAggregatorBaseDescriptor
This class implements the common functionalities of the subclasses of ValueAggregatorDescriptor class.
Field Summary | |
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static String |
DOUBLE_VALUE_SUM
Deprecated. |
static String |
LONG_VALUE_MAX
Deprecated. |
static String |
LONG_VALUE_MIN
Deprecated. |
static String |
LONG_VALUE_SUM
Deprecated. |
static String |
STRING_VALUE_MAX
Deprecated. |
static String |
STRING_VALUE_MIN
Deprecated. |
static String |
UNIQ_VALUE_COUNT
Deprecated. |
static String |
VALUE_HISTOGRAM
Deprecated. |
Fields inherited from class org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorBaseDescriptor |
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inputFile |
Fields inherited from interface org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorDescriptor |
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ONE, TYPE_SEPARATOR |
Constructor Summary | |
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ValueAggregatorBaseDescriptor()
Deprecated. |
Method Summary | |
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void |
configure(JobConf job)
Deprecated. get the input file name. |
static Map.Entry<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> |
generateEntry(String type,
String id,
org.apache.hadoop.io.Text val)
Deprecated. |
static ValueAggregator |
generateValueAggregator(String type)
Deprecated. |
Methods inherited from class org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorBaseDescriptor |
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configure, generateKeyValPairs, generateValueAggregator |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregatorDescriptor |
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configure, generateKeyValPairs |
Field Detail |
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public static final String UNIQ_VALUE_COUNT
public static final String LONG_VALUE_SUM
public static final String DOUBLE_VALUE_SUM
public static final String VALUE_HISTOGRAM
public static final String LONG_VALUE_MAX
public static final String LONG_VALUE_MIN
public static final String STRING_VALUE_MAX
public static final String STRING_VALUE_MIN
Constructor Detail |
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public ValueAggregatorBaseDescriptor()
Method Detail |
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public static Map.Entry<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> generateEntry(String type, String id, org.apache.hadoop.io.Text val)
type
- the aggregation typeid
- the aggregation idval
- the val associated with the id to be aggregated
public static ValueAggregator generateValueAggregator(String type)
type
- the aggregation type
public void configure(JobConf job)
job
- a job configuration object
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