org.apache.bval.constraints.SizeValidatorForString Maven / Gradle / Ivy
/*
* 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;
/** Check that a string's length is between min and max. */
public class SizeValidatorForString extends SizeValidator
implements ConstraintValidator {
/**
* Checks the length of the specified string.
*
* @param s The string to validate.
* @param context context in which the constraint is evaluated.
* @return Returns true
if the string is null
or the length of s
between the specified
* min
and max
values (inclusive), false
otherwise.
*/
public boolean isValid(String s, ConstraintValidatorContext context) {
if (s == null) {
return true;
}
int length = s.length();
return length >= min && length <= max;
}
}