Package org.apache.hadoop.yarn.server.timelineservice.storage.common

Class ColumnHelper

java.lang.Object

org.apache.hadoop.yarn.server.timelineservice.storage.common.ColumnHelper

public final class ColumnHelper
extends Object

This class is meant to be used only by explicit Columns, and not directly to write by clients.

Method Summary

Modifier and Type	Method	Description
static byte[]	getColumnQualifier(byte[] columnPrefixBytes, byte[] qualifier)
static byte[]	getColumnQualifier(byte[] columnPrefixBytes, long qualifier)
static byte[]	getColumnQualifier(byte[] columnPrefixBytes, String qualifier)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getColumnQualifier

public static byte[] getColumnQualifier(byte[] columnPrefixBytes,
 String qualifier)

Parameters:

columnPrefixBytes - The byte representation for the column prefix. Should not contain Separator.QUALIFIERS.

qualifier - for the remainder of the column. Separator.QUALIFIERS is permissible in the qualifier as it is joined only with the column prefix bytes.

Returns:

fully sanitized column qualifier that is a combination of prefix and qualifier. If prefix is null, the result is simply the encoded qualifier without any separator.

getColumnQualifier

public static byte[] getColumnQualifier(byte[] columnPrefixBytes,
 long qualifier)

Parameters:

columnPrefixBytes - The byte representation for the column prefix. Should not contain Separator.QUALIFIERS.

qualifier - for the remainder of the column.

Returns:

fully sanitized column qualifier that is a combination of prefix and qualifier. If prefix is null, the result is simply the encoded qualifier without any separator.

getColumnQualifier

public static byte[] getColumnQualifier(byte[] columnPrefixBytes,
 byte[] qualifier)

Parameters:

columnPrefixBytes - The byte representation for the column prefix. Should not contain Separator.QUALIFIERS.

qualifier - the byte representation for the remainder of the column.

Returns:

fully sanitized column qualifier that is a combination of prefix and qualifier. If prefix is null, the result is simply the encoded qualifier without any separator.