org.springframework.web.servlet.mvc.condition.RequestConditionHolder Maven / Gradle / Ivy
/*
* Copyright 2002-2017 the original author or authors.
*
* 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
*
* https://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.springframework.web.servlet.mvc.condition;
import java.util.Collection;
import java.util.Collections;
import javax.servlet.http.HttpServletRequest;
import org.springframework.lang.Nullable;
/**
* A holder for a {@link RequestCondition} useful when the type of the request
* condition is not known ahead of time, e.g. custom condition. Since this
* class is also an implementation of {@code RequestCondition}, effectively it
* decorates the held request condition and allows it to be combined and compared
* with other request conditions in a type and null safe way.
*
* When two {@code RequestConditionHolder} instances are combined or compared
* with each other, it is expected the conditions they hold are of the same type.
* If they are not, a {@link ClassCastException} is raised.
*
* @author Rossen Stoyanchev
* @since 3.1
*/
public final class RequestConditionHolder extends AbstractRequestCondition {
@Nullable
private final RequestCondition