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• EmptyStringToNullMapper.java

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com.github.stefanbirkner.editors.mapper.EmptyStringToNullMapper Maven / Gradle / Ivy

package com.github.stefanbirkner.editors.mapper;

/**
 * An {@code EmptyStringToNullMapper} maps between Strings. It is an identity
 * mapper with one exception: the empty String is mapped to a {@code null}
 * value.
 * 
 * @author Stefan Birkner 
 * @since 2.0.0
 */
public class EmptyStringToNullMapper implements Mapper {
	private static final String EMPTY_STRING = "";

	public String getValueForText(String text) {
		return (EMPTY_STRING.equals(text)) ? null : text;
	}

	public String getTextForValue(String value) {
		return (value == null) ? EMPTY_STRING : value;
	}
}