001 /** 002 * ========================================= 003 * LibFormula : a free Java formula library 004 * ========================================= 005 * 006 * Project Info: http://reporting.pentaho.org/libformula/ 007 * 008 * (C) Copyright 2006-2007, by Pentaho Corporation and Contributors. 009 * 010 * This library is free software; you can redistribute it and/or modify it under the terms 011 * of the GNU Lesser General Public License as published by the Free Software Foundation; 012 * either version 2.1 of the License, or (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 016 * See the GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public License along with this 019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 020 * Boston, MA 02111-1307, USA. 021 * 022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 023 * in the United States and other countries.] 024 * 025 * 026 * ------------ 027 * $Id: DefaultFormulaContext.java 3521 2007-10-16 10:55:14Z tmorgner $ 028 * ------------ 029 * (C) Copyright 2006-2007, by Pentaho Corporation. 030 */ 031 package org.jfree.formula; 032 033 import java.util.HashMap; 034 035 import org.jfree.formula.function.DefaultFunctionRegistry; 036 import org.jfree.formula.function.FunctionRegistry; 037 import org.jfree.formula.operators.DefaultOperatorFactory; 038 import org.jfree.formula.operators.OperatorFactory; 039 import org.jfree.formula.typing.DefaultTypeRegistry; 040 import org.jfree.formula.typing.Type; 041 import org.jfree.formula.typing.TypeRegistry; 042 import org.jfree.formula.typing.coretypes.AnyType; 043 import org.jfree.util.Configuration; 044 045 /** 046 * Creation-Date: 31.10.2006, 16:32:32 047 * 048 * @author Thomas Morgner 049 */ 050 public class DefaultFormulaContext implements FormulaContext 051 { 052 private DefaultTypeRegistry typeRegistry; 053 private DefaultFunctionRegistry functionRegistry; 054 private OperatorFactory operatorFactory; 055 private DefaultLocalizationContext localizationContext; 056 private Configuration config; 057 private HashMap references; 058 059 public DefaultFormulaContext() 060 { 061 this(LibFormulaBoot.getInstance().getGlobalConfig()); 062 } 063 064 public DefaultFormulaContext(final Configuration config) 065 { 066 this.config = config; 067 localizationContext = new DefaultLocalizationContext(); 068 localizationContext.initialize(config); 069 typeRegistry = new DefaultTypeRegistry(); 070 typeRegistry.initialize(config, this); 071 functionRegistry = new DefaultFunctionRegistry(); 072 functionRegistry.initialize(config); 073 operatorFactory = new DefaultOperatorFactory(); 074 operatorFactory.initalize(config); 075 } 076 077 public OperatorFactory getOperatorFactory() 078 { 079 return operatorFactory; 080 } 081 082 public void defineReference(final Object name, final Object value) 083 { 084 if (references == null) 085 { 086 references = new HashMap(); 087 } 088 references.put(name, value); 089 } 090 091 public Object resolveReference(final Object name) 092 { 093 if (references == null) 094 { 095 return null; 096 } 097 return references.get(name); 098 } 099 100 public Configuration getConfiguration() 101 { 102 return config; 103 } 104 105 public FunctionRegistry getFunctionRegistry() 106 { 107 return functionRegistry; 108 } 109 110 public Type resolveReferenceType(final Object name) 111 { 112 return AnyType.TYPE; 113 } 114 115 public TypeRegistry getTypeRegistry() 116 { 117 return typeRegistry; 118 } 119 120 public LocalizationContext getLocalizationContext() 121 { 122 return localizationContext; 123 } 124 125 public boolean isReferenceDirty(final Object name) 126 { 127 return true; 128 } 129 }