| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.bval.constraints; |
| |
| import javax.validation.ConstraintValidator; |
| import javax.validation.ConstraintValidatorContext; |
| import javax.validation.constraints.Size; |
| import java.util.Collection; |
| |
| /** Check that a Collection's size is between min and max. */ |
| public class SizeValidatorForCollection extends SizeValidator implements ConstraintValidator<Size, Collection<?>> { |
| |
| /** |
| * Checks the number of entries in a map. |
| * |
| * @param collection The collection to validate. |
| * @param context context in which the constraint is evaluated. |
| * @return Returns <code>true</code> if the collection is <code>null</code> or the number of entries in |
| * <code>collection</code> is between the specified <code>min</code> and <code>max</code> values (inclusive), |
| * <code>false</code> otherwise. |
| */ |
| @Override |
| public boolean isValid(Collection<?> collection, ConstraintValidatorContext context) { |
| if (collection == null) { |
| return true; |
| } |
| final int length = collection.size(); |
| return length >= min && length <= max; |
| } |
| |
| } |