Mega Code Archive
Adds the object to the array
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/*
* Copyright 2004-2010 the Seasar Foundation and the Others.
*
* 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.slim3.util;
import java.lang.reflect.Array;
/**
* A utility for {@link Array}.
*
* @author higa
* @since 1.0.0
*
*/
public final class ArrayUtil {
/**
* Adds the object to the array.
*
* @param <T>
* the type
* @param array
* the array
* @param obj
* the object
* @return the added array
*/
@SuppressWarnings("unchecked")
public static <T> T[] add(T[] array, T obj) {
if (array == null && obj == null) {
return null;
}
Class<?> clazz =
obj != null ? obj.getClass() : array.getClass().getComponentType();
int length = array != null ? array.length : 0;
T[] newArray = (T[]) Array.newInstance(clazz, length + 1);
if (array != null) {
System.arraycopy(array, 0, newArray, 0, length);
}
newArray[length] = obj;
return newArray;
}
private ArrayUtil() {
}
}
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