| /* |
| * Copyright 2008 Richard Wallace. |
| * Copyright 2008 Alin Dreghiciu. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.qi4j.library.constraints; |
| |
| import org.qi4j.api.constraint.Constraint; |
| import org.qi4j.library.constraints.annotation.NotEmpty; |
| |
| /** |
| * Implement @NotEmpty constraint for String. |
| */ |
| public class NotEmptyStringConstraint |
| implements Constraint<NotEmpty, String> |
| { |
| |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public boolean isValid( NotEmpty annotation, String value ) |
| { |
| return value.trim().length() > 0; |
| } |
| |
| } |