Java Code Examples for org.apache.hadoop.util.StringUtils#COMMA_STR
The following examples show how to use
org.apache.hadoop.util.StringUtils#COMMA_STR .
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Example 1
Source File: ColumnProjectionUtils.java From tajo with Apache License 2.0 | 5 votes |
/** * Sets read columns' ids(start from zero) for RCFile's Reader. Once a column * is included in the list, RCFile's reader will not skip its value. * */ public static void appendReadColumnIDs(Configuration conf, ArrayList<Integer> ids) { String id = toReadColumnIDString(ids); if (id != null) { String old = conf.get(READ_COLUMN_IDS_CONF_STR, null); String newConfStr = id; if (old != null) { newConfStr = newConfStr + StringUtils.COMMA_STR + old; } setReadColumnIDConf(conf, newConfStr); } }
Example 2
Source File: ColumnProjectionUtils.java From tajo with Apache License 2.0 | 5 votes |
private static String toReadColumnIDString(ArrayList<Integer> ids) { String id = null; if (ids != null) { for (int i = 0; i < ids.size(); i++) { if (i == 0) { id = "" + ids.get(i); } else { id = id + StringUtils.COMMA_STR + ids.get(i); } } } return id; }
Example 3
Source File: ColumnProjectionUtils.java From incubator-tajo with Apache License 2.0 | 5 votes |
/** * Sets read columns' ids(start from zero) for RCFile's Reader. Once a column * is included in the list, RCFile's reader will not skip its value. * */ public static void appendReadColumnIDs(Configuration conf, ArrayList<Integer> ids) { String id = toReadColumnIDString(ids); if (id != null) { String old = conf.get(READ_COLUMN_IDS_CONF_STR, null); String newConfStr = id; if (old != null) { newConfStr = newConfStr + StringUtils.COMMA_STR + old; } setReadColumnIDConf(conf, newConfStr); } }
Example 4
Source File: ColumnProjectionUtils.java From incubator-tajo with Apache License 2.0 | 5 votes |
private static String toReadColumnIDString(ArrayList<Integer> ids) { String id = null; if (ids != null) { for (int i = 0; i < ids.size(); i++) { if (i == 0) { id = "" + ids.get(i); } else { id = id + StringUtils.COMMA_STR + ids.get(i); } } } return id; }