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.commons.functor.core.algorithm; 018 019import org.apache.commons.functor.NullaryPredicate; 020import org.apache.commons.functor.NullaryProcedure; 021 022/** 023 * Do-until algorithm (test after). 024 * 025 * @version $Revision: 1537906 $ $Date: 2013-11-01 12:47:33 +0100 (Fr, 01 Nov 2013) $ 026 */ 027public class DoUntil extends PredicatedLoop { 028 029 /** 030 * Create a new DoUntil. 031 * @param body to execute 032 * @param test whether to keep going 033 */ 034 public DoUntil(NullaryProcedure body, NullaryPredicate test) { 035 super(body, test); 036 } 037 038 /** 039 * {@inheritDoc} 040 */ 041 public final void run() { 042 do { 043 getBody().run(); 044 } while (!getTest().test()); 045 } 046 047 /** 048 * {@inheritDoc} 049 */ 050 @Override 051 public String toString() { 052 return "DoUntil<" + getBody() + "," + getTest() + ">"; 053 } 054}