Java String Empty to Null emptyToNull(final String text, final boolean doTrim)

Description

Returns null if a string variable is empty.

License

Apache License

Parameter

Parameter	Description
text	the string to evaluate
doTrim	if true, the string variable is trimmed before comparison

Return

null if the variable is empty

Declaration

public static String emptyToNull(final String text, final boolean doTrim) 

Method Source Code

//package com.java2s;
/*//from ww w.  j  a v  a 2s  .c o  m
Copyright 2008 Flaptor (flaptor.com) 
    
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.
*/

public class Main {
    /**
     * Returns null if a string variable is empty.
     * @param text the string to evaluate
     * @param doTrim if true, the string variable is trimmed before comparison
     * @return null if the variable is empty
     */
    public static String emptyToNull(final String text, final boolean doTrim) {
        if (doTrim && (text != null)) {
            return ("".equals(text.trim())) ? null : text;
        } else {
            return ("".equals(text)) ? null : text;
        }
    }
}

Related

1. emptyStringToNull(String input)
2. emptyStringToNull(String str)
3. emptyStringToNull(String string)
4. emptyToDefault(String value, String def)
5. emptyToDefault(T[] values, T[] def)
6. emptyToNull(String field)
7. emptyToNull(String s)
8. emptyToNull(String s)
9. emptyToNull(String str)