org.apache.cassandra.schema

Class LegacySchemaMigrator

java.lang.Object

org.apache.cassandra.schema.LegacySchemaMigrator

public final class LegacySchemaMigrator
extends java.lang.Object

This majestic class performs migration from legacy (pre-3.0) system.schema_* schema tables to the new and glorious system_schema keyspace. The goal is to not lose any information in the migration - including the timestamps.

Method Summary

Modifier and Type	Method and Description
static CachingParams	cachingFromRow(java.lang.String caching) 2.1 and newer use JSON'ified map of caching parameters, but older versions had valid Strings NONE, KEYS_ONLY, ROWS_ONLY, and ALL
static void	migrate()

Methods inherited from class java.lang.Object

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

Method Detail

migrate

public static void migrate()

cachingFromRow

public static CachingParams cachingFromRow(java.lang.String caching)

2.1 and newer use JSON'ified map of caching parameters, but older versions had valid Strings NONE, KEYS_ONLY, ROWS_ONLY, and ALL

Parameters:

caching, - the string representing the table's caching options

Returns:

CachingParams object corresponding to the input string