/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package jakarta.el;

import java.lang.reflect.Method;
import java.util.Map;

Since:EL 3.0
/** * @since EL 3.0 */
public class ELManager { private StandardELContext context = null; public static ExpressionFactory getExpressionFactory() { return Util.getExpressionFactory(); } public StandardELContext getELContext() { if (context == null) { context = new StandardELContext(getExpressionFactory()); } return context; } public ELContext setELContext(ELContext context) { StandardELContext oldContext = this.context; this.context = new StandardELContext(context); return oldContext; } public void addBeanNameResolver(BeanNameResolver beanNameResolver) { getELContext().addELResolver(new BeanNameELResolver(beanNameResolver)); } public void addELResolver(ELResolver resolver) { getELContext().addELResolver(resolver); } public void mapFunction(String prefix, String function, Method method) { getELContext().getFunctionMapper().mapFunction( prefix, function, method); } public void setVariable(String variable, ValueExpression expression) { getELContext().getVariableMapper().setVariable(variable, expression); } public void importStatic(String staticMemberName) throws jakarta.el.ELException { getELContext().getImportHandler().importStatic(staticMemberName); } public void importClass(String className) throws jakarta.el.ELException { getELContext().getImportHandler().importClass(className); } public void importPackage(String packageName) { getELContext().getImportHandler().importPackage(packageName); } public Object defineBean(String name, Object bean) { Map<String,Object> localBeans = getELContext().getLocalBeans(); if (bean == null) { return localBeans.remove(name); } else { return localBeans.put(name, bean); } } public void addEvaluationListener(EvaluationListener listener) { getELContext().addEvaluationListener(listener); } }