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 */ 017 package org.apache.camel.language.simple.types; 018 019 /** 020 * Types of unary operators supported. 021 * <p/> 022 * An unary operator can only work on the left hand side, which means the operator 023 * should be defined directly <i>after</i> the function it should work upon. 024 */ 025 public enum UnaryOperatorType { 026 027 INC, DEC; 028 029 public static UnaryOperatorType asOperator(String text) { 030 if ("++".equals(text)) { 031 return INC; 032 } else if ("--".equals(text)) { 033 return DEC; 034 } 035 throw new IllegalArgumentException("Operator not supported: " + text); 036 } 037 038 public String getOperatorText(UnaryOperatorType operator) { 039 if (operator == INC) { 040 return "++"; 041 } else if (operator == DEC) { 042 return "--"; 043 } 044 return ""; 045 } 046 047 @Override 048 public String toString() { 049 return getOperatorText(this); 050 } 051 052 }