/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2006 - 2013 Pentaho Corporation and Contributors. All rights reserved.
*/
package org.pentaho.reporting.libraries.formula.function;
/**
* The function registry contains all information about all function available. It is also the central point from where
* to get function meta-data or where to instantiate functions.
* <p/>
* All functions are queried by their cannonical name.
*
* @author Thomas Morgner
*/
public interface FunctionRegistry {
public FunctionCategory[] getCategories();
public Function[] getFunctions();
public Function[] getFunctionsByCategory( FunctionCategory category );
public String[] getFunctionNames();
public String[] getFunctionNamesByCategory( FunctionCategory category );
public Function createFunction( String name );
public FunctionDescription getMetaData( String name );
}