com.rdonasco.common.vaadin.validators.FieldMatchedValueValidator.java Source code

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Here is the source code for com.rdonasco.common.vaadin.validators.FieldMatchedValueValidator.java

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/*
 * Copyright 2013 Roy F. Donasco.
 * File Created on: 21-Apr-2013
 *
 * 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.rdonasco.common.vaadin.validators;

import com.vaadin.data.Validator;
import com.vaadin.ui.AbstractField;
import com.vaadin.ui.PasswordField;

/**
 *
 * @author Roy F. Donasco
 */
public class FieldMatchedValueValidator implements Validator {
    private static final long serialVersionUID = 1L;

    public static FieldMatchedValueValidator createFieldMatchValidatorWithErrorMessage(
            AbstractField referencedField, String errorMessage) {
        return new FieldMatchedValueValidator(referencedField, errorMessage);
    }

    private AbstractField referencedField;
    private String errorMessage;

    private FieldMatchedValueValidator(AbstractField referencedField, String errorMessage) {
        this.referencedField = referencedField;
        this.errorMessage = errorMessage;
    }

    @Override
    public void validate(Object value) throws InvalidValueException {
        if (!isValid(value)) {
            throw new InvalidValueException(errorMessage);
        }
    }

    @Override
    public boolean isValid(Object value) {
        return value.equals(referencedField.getValue());
    }
}