001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.util; 018 019import java.util.function.Supplier; 020 021/** 022 * Provider that always provides the specified value. 023 * 024 * @author igor.vaynberg 025 * @param <T> 026 * type of value this provider provides 027 */ 028public class ValueProvider<T> implements Supplier<T> 029{ 030 private final T value; 031 032 /** 033 * Construct. 034 * 035 * @param value 036 * value to provide 037 */ 038 public ValueProvider(final T value) 039 { 040 this.value = value; 041 } 042 043 @Override 044 public T get() 045 { 046 return value; 047 } 048 049 /** 050 * Creates a provider for the specified value 051 * 052 * @param <T> 053 * type of value 054 * @param value 055 * value 056 * @return provider 057 */ 058 public static <T> ValueProvider<T> of(final T value) 059 { 060 return new ValueProvider<>(value); 061 } 062}