/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed 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 org.jboss.weld.module.web.el;
import javax.el.ELContext;
import java.util.Stack;
class ELCreationalContextStack extends Stack<CreationalContextCallable> {
private static final long serialVersionUID = -57142365866995726L;
public static ELCreationalContextStack addToContext(ELContext context) {
ELCreationalContextStack store = new ELCreationalContextStack();
context.putContext(ELCreationalContextStack.class, store);
return store;
}
public static ELCreationalContextStack getCreationalContextStore(ELContext context) {
Object o = context.getContext(ELCreationalContextStack.class);
if (o != null) {
return (ELCreationalContextStack) o;
} else {
return addToContext(context);
}
}
}