Java List Null Empty isEmpty(final List values, final int position)

Description

is Empty

License

Apache License

Declaration

public static boolean isEmpty(final List<String> values, final int position) 

Method Source Code

//package com.java2s;
/*/*from  w w  w .  j a v  a  2s  .  co m*/
 * Copyright 2009-2013 the original author or authors.
 * 
 * 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.
 */

import java.util.List;

public class Main {

    public static boolean isEmpty(final List<String> values, final int position) {
        validate(values, position);
        final String value = values.get(position);
        return value == null || value.isEmpty();
    }

    protected static void validate(final List<String> values, final int position) {
        if (values == null) {
            throw new IllegalArgumentException("Values must not be null");
        }
        if (position < 0 || position >= values.size()) {
            throw new IllegalArgumentException(String.format("Invalid column position %d", position));
        }
    }
}

Related

1. isArrayEmpty(List objList)
2. isCollectionListEmpty()
3. isCommentOrEmptyLine(int lineIndex, List linesOfFile)
4. isEmpty(Collection list)
5. isEmpty(final List aList)
6. isEmpty(final List list)
7. isEmpty(final List objList)
8. isEmpty(java.util.List list)
9. isEmpty(List list)