Package com.opencsv.bean.processor
Class ConvertEmptyOrBlankStringsToNull
java.lang.Object
com.opencsv.bean.processor.ConvertEmptyOrBlankStringsToNull
- All Implemented Interfaces:
StringProcessor
StringProcessor that converts the empty or blank strings to a literal null string.
This is useful when you prefer null in a particular variable.
A sample of this can be found in the unit test ProcessorTestBean and is annotated as follows.
@PreAssignmentProcessor(processor = ConvertEmptyOrBlankStringsToNull.class) @CsvBindByName(column = "name") private String beanName;
- Since:
- 5.4
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprocessString
(String value) Method that contains the code that will transform a string into the value that will be validated and converted into the bean field.void
setParameterString
(String value) This method is unused in this implementation as we are converting to null.
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Constructor Details
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ConvertEmptyOrBlankStringsToNull
public ConvertEmptyOrBlankStringsToNull()Default Constructor.
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Method Details
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processString
Description copied from interface:StringProcessor
Method that contains the code that will transform a string into the value that will be validated and converted into the bean field.- Specified by:
processString
in interfaceStringProcessor
- Parameters:
value
-String
to be processed- Returns:
- The processed
String
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setParameterString
This method is unused in this implementation as we are converting to null. Any calls to this method are ignored.- Specified by:
setParameterString
in interfaceStringProcessor
- Parameters:
value
- Information used by the processor to process the string
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