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/*
 * 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.apache.pivot.wtk.validation;

/**
 * A validator for a (trimmed) text.
 * 
 * This is useful only when a value to be valid has to be absent.
 */
public class EmptyTextValidator implements Validator {

    public EmptyTextValidator() {
    }

    @Override
    public boolean isValid(String text) {
        return (text.trim()).length() == 0;
    }

}