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java.lang.Objectcom.ebay.erl.mobius.core.ConfigureConstants
public class ConfigureConstants
Defines Mobius specific property keys to be set in different kinds of Mobius jobs in the Hadoop Configuration.
This product is licensed under the Apache License, Version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0. This product contains portions derived from Apache hadoop which is licensed under the Apache License, Version 2.0, available at http://hadoop.apache.org. © 2007 – 2012 eBay Inc., Evan Chiu, Woody Zhou, Neel Sundaresan
Field Summary | |
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static java.lang.String |
ALL_DATASET_IDS
To locate all the participated Dataset id in a Mobius job. |
static java.lang.String |
ALL_GROUP_KEY_COLUMNS
To locate all the group by columns in a group by job. |
static java.lang.String |
CURRENT_DATASET_ID
Indicate the current Dataset ID processed by a mapper. |
static java.lang.String |
INPUT_TO_DATASET_MAPPING
To locate the mapping from an input path to the corresponding dataset id. |
static java.lang.String |
IS_OUTER_JOIN
To indicate Mobius join job is a outer join job or not. |
static java.lang.String |
IS_SORT_JOB
To indicate if this mobius job is a sort job or not. |
static java.lang.String |
MAPPER_CLASS
To locate the mapper class for a Mobius job. |
static java.lang.String |
NULL_REPLACEMENT
To locate the object to be used to represents a null value. |
static java.lang.String |
NULL_REPLACEMENT_TYPE
the type of the null replacement object. |
static java.lang.String |
PERSISTANT_CRITERIA
To locate the filter criteria used before a join, grouping job save the records to disk. |
static java.lang.String |
PROJECTION_COLUMNS
To locate the Base64 encoded projection columns. |
static java.lang.String |
SORTERS
To locate Base64 encoded Sorter
in a sorting job. |
static java.lang.String |
TUPLE_TO_STRING_DELIMITER
the delimiter to be used in Tuple.toString() , default is tab. |
Constructor Summary | |
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ConfigureConstants()
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Method Summary |
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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 |
Field Detail |
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public static final java.lang.String CURRENT_DATASET_ID
Dataset
ID processed by a mapper.
public static final java.lang.String TUPLE_TO_STRING_DELIMITER
Tuple.toString()
, default is tab.
The toString method is called if the output format is text.
To change the delimiter of Tuple, modify this parameter in command line like: -Dmobius.tuple.tostring.delimiter=YOUR_DELIMITER.
public static final java.lang.String PROJECTION_COLUMNS
public static final java.lang.String INPUT_TO_DATASET_MAPPING
public static final java.lang.String ALL_DATASET_IDS
Dataset
id in a Mobius job.
public static final java.lang.String ALL_GROUP_KEY_COLUMNS
public static final java.lang.String SORTERS
Sorter
in a sorting job.
public static final java.lang.String IS_SORT_JOB
public static final java.lang.String MAPPER_CLASS
public static final java.lang.String IS_OUTER_JOIN
public static final java.lang.String NULL_REPLACEMENT
public static final java.lang.String NULL_REPLACEMENT_TYPE
public static final java.lang.String PERSISTANT_CRITERIA
Constructor Detail |
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public ConfigureConstants()
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