001package org.gwtbootstrap3.client.ui.form.validator; 002 003/* 004 * #%L 005 * GwtBootstrap3 006 * %% 007 * Copyright (C) 2015 GwtBootstrap3 008 * %% 009 * Licensed under the Apache License, Version 2.0 (the "License"); 010 * you may not use this file except in compliance with the License. 011 * You may obtain a copy of the License at 012 * 013 * http://www.apache.org/licenses/LICENSE-2.0 014 * 015 * Unless required by applicable law or agreed to in writing, software 016 * distributed under the License is distributed on an "AS IS" BASIS, 017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 018 * See the License for the specific language governing permissions and 019 * limitations under the License. 020 * #L% 021 */ 022 023import java.util.List; 024 025import com.google.gwt.editor.client.Editor; 026import com.google.gwt.editor.client.EditorError; 027 028/** 029 * An input validator. 030 * 031 * @param <T> the type. 032 * @author Steven Jardine 033 */ 034public interface Validator<T> { 035 036 /** 037 * Represents the priority of a validator. 038 */ 039 public static class Priority { 040 041 /** HIGHEST priority */ 042 public static final int HIGHEST = 0; 043 044 /** HIGH priority */ 045 public static final int HIGH = 25; 046 047 /** MEDIUM priority */ 048 public static final int MEDIUM = 50; 049 050 /** LOW priority */ 051 public static final int LOW = 75; 052 053 /** LOWEST priority */ 054 public static final int LOWEST = 100; 055 056 } 057 058 /** 059 * Priority value for this validator. Lower the number, higher the priority. 060 * @return the priority. 061 */ 062 int getPriority(); 063 064 /** 065 * Validate the field. 066 * 067 * @param editor the {@link Editor}. 068 * @param value the value 069 * @return the list 070 */ 071 List<EditorError> validate(Editor<T> editor, T value); 072 073}