com.google.gwt.validation.client.constraints.DigitsValidatorForString Maven / Gradle / Ivy
/*
* Copyright 2010 Google Inc.
*
* 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 com.google.gwt.validation.client.constraints;
import java.math.BigDecimal;
import javax.validation.ConstraintValidatorContext;
/**
* {@link javax.validation.constraints.Digits} constraint validator
* implementation for a {@link String}.
*/
public class DigitsValidatorForString extends
AbstractDigitsValidator {
@Override
public final boolean isValid(String value, ConstraintValidatorContext context) {
if (value == null) {
return true;
}
BigDecimal bigValue;
try {
bigValue = new BigDecimal(value);
} catch (NumberFormatException e) {
return false;
}
return isValid(bigValue);
}
}