co.cask.cdap.data2.dataset2.lib.table.inmemory

Class PrefixedNamespaces

java.lang.Object

co.cask.cdap.data2.dataset2.lib.table.inmemory.PrefixedNamespaces

public class PrefixedNamespaces
extends Object

Defines a prefix-based namespace strategy for in-memory and LevelDB tables. Only used to generate internal representation (name) of datasets, in-memory and LevelDB tables. Note: This namespacing should always only be one-way, i.e. we should never have to derive the components (root prefix, namespace id and dataset name) from the namespaced name.

Method Summary

Methods

Modifier and Type	Method and Description
static String	namespace(CConfiguration cConf, String namespaceId, String name) Generates a table name of the form:

Methods inherited from class java.lang.Object

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

Method Detail

namespace

public static String namespace(CConfiguration cConf,
               String namespaceId,
               String name)

Generates a table name of the form:

   {root-prefix}_{namespace-id}.{dataset-name}
 

Parameters:

cConf - CDAP configuration

namespaceId - the dataset's namespace

name - the dataset's name

Returns:

the dataset's name qualified with a root prefix and a namespace id