001//////////////////////////////////////////////////////////////////////////////// 002// checkstyle: Checks Java source code for adherence to a set of rules. 003// Copyright (C) 2001-2014 Oliver Burn 004// 005// This library is free software; you can redistribute it and/or 006// modify it under the terms of the GNU Lesser General Public 007// License as published by the Free Software Foundation; either 008// version 2.1 of the License, or (at your option) any later version. 009// 010// This library is distributed in the hope that it will be useful, 011// but WITHOUT ANY WARRANTY; without even the implied warranty of 012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013// Lesser General Public License for more details. 014// 015// You should have received a copy of the GNU Lesser General Public 016// License along with this library; if not, write to the Free Software 017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 018//////////////////////////////////////////////////////////////////////////////// 019package com.puppycrawl.tools.checkstyle.checks.naming; 020 021import com.puppycrawl.tools.checkstyle.api.TokenTypes; 022 023/** 024 * <p> 025 * Checks that interface type parameter names conform to a format specified 026 * by the format property. The format is a 027 * {@link java.util.regex.Pattern regular expression} and defaults to 028 * <strong>^[A-Z]$</strong>. 029 * </p> 030 * <p> 031 * An example of how to configure the check is: 032 * </p> 033 * <pre> 034 * <module name="InterfaceTypeParameterName"/> 035 * </pre> 036 * <p> 037 * An example of how to configure the check for names that are only a single 038 * letter is 039 * </p> 040 * <pre> 041 * <module name="InterfaceTypeParameterName"> 042 * <property name="format" value="^[a-zA-Z]$"/> 043 * </module> 044 * </pre> 045 * 046 * @author maxvetrenko 047 */ 048public class InterfaceTypeParameterNameCheck 049 extends AbstractTypeParameterNameCheck 050{ 051 /** Creates a new <code>InterfaceTypeParameterNameCheck</code> instance. */ 052 public InterfaceTypeParameterNameCheck() 053 { 054 super("^[A-Z]$"); 055 } 056 057 @Override 058 protected final int getLocation() 059 { 060 return TokenTypes.INTERFACE_DEF; 061 } 062}