Java Array Value Any anyNotNull(final Object... values)

Description

Checks if any value in the given array is not null .

License

Apache License

Parameter

Parameter	Description
values	the values to test, may be null or empty

Return

true if there is at least one non-null value in the array, false if all values in the array are null s. If the array is null or empty false is also returned.

Declaration

public static boolean anyNotNull(final Object... values)

Method Source Code

//package com.java2s;
/*// w ww  .  j a v a2 s .co  m
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

public class Main {
    /**
     * Checks if any value in the given array is not {@code null}.
     *
     * <p>
     * If all the values are {@code null} or the array is {@code null}
     * or empty then {@code false} is returned. Otherwise {@code true} is returned.
     * </p>
     *
     * <pre>
     * ObjectUtils.anyNotNull(*)                = true
     * ObjectUtils.anyNotNull(*, null)          = true
     * ObjectUtils.anyNotNull(null, *)          = true
     * ObjectUtils.anyNotNull(null, null, *, *) = true
     * ObjectUtils.anyNotNull(null)             = false
     * ObjectUtils.anyNotNull(null, null)       = false
     * </pre>
     * 
     * @param values  the values to test, may be {@code null} or empty
     * @return {@code true} if there is at least one non-null value in the array,
     * {@code false} if all values in the array are {@code null}s.
     * If the array is {@code null} or empty {@code false} is also returned.
     * @since 3.5
     */
    public static boolean anyNotNull(final Object... values) {
        return firstNonNull(values) != null;
    }

    /**
     * <p>Returns the first value in the array which is not {@code null}.
     * If all the values are {@code null} or the array is {@code null}
     * or empty then {@code null} is returned.</p>
     *
     * <pre>
     * ObjectUtils.firstNonNull(null, null)      = null
     * ObjectUtils.firstNonNull(null, "")        = ""
     * ObjectUtils.firstNonNull(null, null, "")  = ""
     * ObjectUtils.firstNonNull(null, "zz")      = "zz"
     * ObjectUtils.firstNonNull("abc", *)        = "abc"
     * ObjectUtils.firstNonNull(null, "xyz", *)  = "xyz"
     * ObjectUtils.firstNonNull(Boolean.TRUE, *) = Boolean.TRUE
     * ObjectUtils.firstNonNull()                = null
     * </pre>
     *
     * @param <T> the component type of the array
     * @param values  the values to test, may be {@code null} or empty
     * @return the first value from {@code values} which is not {@code null},
     *  or {@code null} if there are no non-null values
     * @since 3.0
     */
    public static <T> T firstNonNull(final T... values) {
        if (values != null) {
            for (final T val : values) {
                if (val != null) {
                    return val;
                }
            }
        }
        return null;
    }
}