Example usage for org.apache.commons.lang3 Validate noNullElements

Introduction

In this page you can find the example usage for org.apache.commons.lang3 Validate noNullElements.

Prototype

public static <T extends Iterable<?>> T noNullElements(final T iterable, final String message,
        final Object... values) 

Source Link

Document

Validate that the specified argument iterable is neither null nor contains any elements that are null ; otherwise throwing an exception with the specified message.

Usage

From source file:com.feilong.core.util.SortUtil.java

/**
 *  ? <code>list</code>,(?)?.
 * // w ww .  j av a 2 s  .c o  m
 * <h3>:</h3>
 * 
 * <blockquote>
 * 
 * <pre class="code">
 * 
 * List{@code <User>} list = new ArrayList{@code <User>}();
 * list.add(new User(12L, 18));
 * list.add(new User(2L, 36));
 * list.add(new User(2L, 2));
 * list.add(new User(2L, 30));
 * list.add(new User(1L, 8));
 * SortUtil.sort(list, "id", "age");
 * LOGGER.debug(JsonUtil.formatWithIncludes(list, "id", "age"));
 * 
 * </pre>
 * 
 * <b>:</b>
 * 
 * <pre class="code">
[{"id": 1,"age": 8},
{"id": 2,"age": 2},
{"id": 2,"age": 30},
{"id": 2,"age": 36},
{"id": 12,"age": 18}]
 * </pre>
 * 
 * </blockquote>
 *
 * @param <O>
 *            the generic type
 * @param list
 *            the list
 * @param propertyNames
 *            O??,Possibly indexed and/or nested name of the property to be modified,??
 *            <a href="../bean/BeanUtil.html#propertyName">propertyName</a>
 * @return  <code>list</code> null, {@link Collections#emptyList()}<br>
 * @throws NullPointerException
 *              <code>propertyNames</code> null
 * @throws IllegalArgumentException
 *              <code>propertyNames</code> empty , null
 * @see BeanComparatorUtil#chainedComparator(String...)
 * @see org.apache.commons.collections4.ComparatorUtils#chainedComparator(java.util.Comparator...)
 * @see #sort(List, Comparator)
 */
public static <O> List<O> sort(List<O> list, String... propertyNames) {
    if (null == list) {
        return emptyList();
    }
    Validate.notEmpty(propertyNames, "propertyNames can't be null/empty!");
    Validate.noNullElements(propertyNames, "propertyName:%s has empty value", propertyNames);

    return sort(list, BeanComparatorUtil.chainedComparator(propertyNames));
}

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