/**
* =========================================
* LibFormula : a free Java formula library
* =========================================
*
* Project Info: http://reporting.pentaho.org/libformula/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library 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.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
*
* ------------
* $Id: DefaultFormulaContext.java,v 1.7 2007/05/12 23:53:15 mimil Exp $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.formula;
import java.util.HashMap;
import org.jfree.formula.function.DefaultFunctionRegistry;
import org.jfree.formula.function.FunctionRegistry;
import org.jfree.formula.operators.DefaultOperatorFactory;
import org.jfree.formula.operators.OperatorFactory;
import org.jfree.formula.typing.DefaultTypeRegistry;
import org.jfree.formula.typing.Type;
import org.jfree.formula.typing.TypeRegistry;
import org.jfree.formula.typing.coretypes.AnyType;
import org.jfree.util.Configuration;
/**
* Creation-Date: 31.10.2006, 16:32:32
*
* @author Thomas Morgner
*/
public class DefaultFormulaContext implements FormulaContext
{
private DefaultTypeRegistry typeRegistry;
private DefaultFunctionRegistry functionRegistry;
private OperatorFactory operatorFactory;
private DefaultLocalizationContext localizationContext;
private Configuration config;
private HashMap references;
public DefaultFormulaContext()
{
this(LibFormulaBoot.getInstance().getGlobalConfig());
}
public DefaultFormulaContext(Configuration config)
{
this.config = config;
localizationContext = new DefaultLocalizationContext();
localizationContext.initialize(config);
typeRegistry = new DefaultTypeRegistry();
typeRegistry.initialize(config, this);
functionRegistry = new DefaultFunctionRegistry();
functionRegistry.initialize(config);
operatorFactory = new DefaultOperatorFactory();
operatorFactory.initalize(config);
}
public OperatorFactory getOperatorFactory()
{
return operatorFactory;
}
public void defineReference(Object name, Object value)
{
if (references == null)
{
references = new HashMap();
}
references.put(name, value);
}
public Object resolveReference(Object name)
{
if (references == null)
{
return null;
}
return references.get(name);
}
public Configuration getConfiguration()
{
return config;
}
public FunctionRegistry getFunctionRegistry()
{
return functionRegistry;
}
public Type resolveReferenceType(Object name)
{
return AnyType.TYPE;
}
public TypeRegistry getTypeRegistry()
{
return typeRegistry;
}
public LocalizationContext getLocalizationContext()
{
return localizationContext;
}
public boolean isReferenceDirty(Object name)
{
return true;
}
}