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objectify-led is a small Java library for binding object or class properties at runtime using annotations, reducing boilerplate code. Values can be taken from the System, from properties files, any arbitrary source in fact, and automatically set on properties.

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/*
 * Copyright 2009-2010 Steve Chaloner
 *
 * 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 be.objectify.led.util;

/**
 * Utility methods for working with strings.
 *
 * @author Steve Chaloner
 */
public final class StringUtils
{
    private StringUtils()
    {
    }

    /**
     * Checks if the given string is null or comprised entirely of whitespace.
     *
     * @param string the string to check
     * @return true iff the string is null or empty
     */
    public static boolean isEmpty(String string)
    {
        return string == null || string.trim().length() == 0;
    }
}