| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ConstraintManager |
|
| 1.6;1.6 |
| 1 | package org.jtheque.core.utils.ui.constraints; | |
| 2 | ||
| 3 | import org.jtheque.core.managers.error.JThequeError; | |
| 4 | import org.jtheque.utils.ui.DocumentLengthFilterAvert; | |
| 5 | ||
| 6 | import javax.swing.JTextField; | |
| 7 | import javax.swing.text.AbstractDocument; | |
| 8 | import javax.swing.text.Document; | |
| 9 | import javax.swing.text.DocumentFilter; | |
| 10 | import java.util.Collection; | |
| 11 | import java.util.HashMap; | |
| 12 | import java.util.Map; | |
| 13 | ||
| 14 | /* | |
| 15 | * This file is part of JTheque. | |
| 16 | * | |
| 17 | * JTheque is free software: you can redistribute it and/or modify | |
| 18 | * it under the terms of the GNU General Public License as published by | |
| 19 | * the Free Software Foundation, either version 3 of the License. | |
| 20 | * | |
| 21 | * JTheque is distributed in the hope that it will be useful, | |
| 22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 24 | * GNU General Public License for more details. | |
| 25 | * | |
| 26 | * You should have received a copy of the GNU General Public License | |
| 27 | * along with JTheque. If not, see <http://www.gnu.org/licenses/>. | |
| 28 | */ | |
| 29 | ||
| 30 | /** | |
| 31 | * A constraint manager. | |
| 32 | * | |
| 33 | * @author Baptiste Wicht | |
| 34 | */ | |
| 35 | public final class ConstraintManager { | |
| 36 | 0 | private static final Map<String, Constraint> CONSTRAINTS = new HashMap<String, Constraint>(20); |
| 37 | ||
| 38 | /** | |
| 39 | * Construct a new ConstraintManager. This class isn't instanciable. | |
| 40 | */ | |
| 41 | private ConstraintManager() { | |
| 42 | 0 | super(); |
| 43 | 0 | } |
| 44 | ||
| 45 | /** | |
| 46 | * Add a constraint. | |
| 47 | * | |
| 48 | * @param fieldName The name of the field. | |
| 49 | * @param constraint The constraint. | |
| 50 | */ | |
| 51 | public static void addConstraint(String fieldName, Constraint constraint) { | |
| 52 | 0 | CONSTRAINTS.put(fieldName, constraint); |
| 53 | 0 | } |
| 54 | ||
| 55 | /** | |
| 56 | * Return the constraint for a specific field. | |
| 57 | * | |
| 58 | * @param fieldName The name of the field to get the constraint for. | |
| 59 | * @return The constraint for the field. | |
| 60 | */ | |
| 61 | public static Constraint getConstraint(String fieldName) { | |
| 62 | 0 | return CONSTRAINTS.get(fieldName); |
| 63 | } | |
| 64 | ||
| 65 | /** | |
| 66 | * Validate the field with the constraint. | |
| 67 | * | |
| 68 | * @param fieldName The name of the field. | |
| 69 | * @param field The field. | |
| 70 | * @param errors The errors list to fill. | |
| 71 | */ | |
| 72 | public static void validate(String fieldName, Object field, Collection<JThequeError> errors) { | |
| 73 | 0 | if (CONSTRAINTS.containsKey(fieldName)) { |
| 74 | 0 | CONSTRAINTS.get(fieldName).validate(field, errors); |
| 75 | } | |
| 76 | 0 | } |
| 77 | ||
| 78 | /** | |
| 79 | * Configure a JTextField with the constraint. | |
| 80 | * | |
| 81 | * @param field The field to configure. | |
| 82 | * @param fieldName The name of the field. | |
| 83 | */ | |
| 84 | public static void configure(JTextField field, String fieldName) { | |
| 85 | 0 | if (CONSTRAINTS.containsKey(fieldName) && CONSTRAINTS.get(fieldName).mustControlLength()) { |
| 86 | 0 | DocumentFilter filter = new DocumentLengthFilterAvert(CONSTRAINTS.get(fieldName).maxLength(), field); |
| 87 | 0 | Document document = field.getDocument(); |
| 88 | 0 | ((AbstractDocument) document).setDocumentFilter(filter); |
| 89 | } | |
| 90 | 0 | } |
| 91 | } |