Derek Hulley e1ada58fef MOB-29: Content Storage Lifecycle Management
- Some collapsing of common code in Constraint hierarchy.
 - Added aspect 'cm:storeSelector' with property 'cm:storeName'.
 - Defined a new, unused content store 'storeSelectorContentStore' (see content-services-context.xml).
   If this store is used, then setting the 'cm:storeName' property will force content to be stored in one
   of the named stores.  A LIST constraint is indirectly enforced for the 'cm:storeName' property.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@14329 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2009-05-15 04:36:20 +00:00

94 lines
2.7 KiB
Java

/*
* Copyright (C) 2005-2009 Alfresco Software Limited.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* As a special exception to the terms and conditions of version 2.0 of
* the GPL, you may redistribute this Program in connection with Free/Libre
* and Open Source Software ("FLOSS") applications as described in Alfresco's
* FLOSS exception. You should have recieved a copy of the text describing
* the FLOSS exception, and it is also available here:
* http://www.alfresco.com/legal/licensing"
*/
package org.alfresco.repo.dictionary.constraint;
import java.util.HashMap;
import java.util.Map;
import org.alfresco.service.cmr.dictionary.Constraint;
/**
* A registry of constraints.
*
* @author Derek Hulley
* @since 3.2
*/
public class ConstraintRegistry
{
private static ConstraintRegistry instance = new ConstraintRegistry();
private Map<String, Constraint> constraints;
/**
* @return Returns the singleton
*/
public static ConstraintRegistry getInstance()
{
return instance;
}
/**
* Private constructor
* @see #getInstance()
*/
private ConstraintRegistry()
{
constraints = new HashMap<String, Constraint>(13);
}
/**
* Register the constraint by name
*/
public void register(String name, Constraint constraint)
{
if (this == instance)
{
constraints.put(name, constraint);
}
else
{
instance.register(name, constraint);
}
}
/**
* Get the constraint by name
*
* @param name the name by which the constraint was registered
* @return Returns the constraint or <tt>null</tt> if it does not exist.
*/
public Constraint getConstraint(String name)
{
if (this == instance)
{
return constraints.get(name);
}
else
{
return instance.getConstraint(name);
}
}
}