package com.bigdata.sparse;
/**
* Schema for the {@link SparseRowStore} used as a global row store for named
* property sets within the federation. This schema only declares the
* primaryKey, {@link #NAME}, and a single property value, {@link #VALUE}.
* <p>
* Applications may simply declare their own property names or they may declare
* their own {@link Schema}. Applications are responsible for ensuring that the
* primaryKey values are globally distinct, e.g., by use of a namespace
* convention.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class GlobalRowStoreSchema extends Schema {
private static final long serialVersionUID = -4880904728328862689L;
/**
* The name of the property whose value is the name of the object (this
* is the primary key).
*/
public static final String NAME = "name";
/**
* The name of the property whose value is the object associated with
* the name.
*/
public static final String VALUE = "value";
/**
* A shared instance.
*/
public transient static final GlobalRowStoreSchema INSTANCE = new GlobalRowStoreSchema();
/**
*
* @see #INSTANCE
*/
public GlobalRowStoreSchema() {
super("__base", NAME, KeyType.Unicode);
}
}