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/*
* 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 javax.el;
import java.lang.reflect.Method;
import java.util.Map;
/**
* @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 javax.el.ELException {
getELContext().getImportHandler().importStatic(staticMemberName);
}
public void importClass(String className) throws javax.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);
}
}
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