org.supercsv.cellprocessor.constraint

Class StrNotNullOrEmpty

java.lang.Object

org.supercsv.cellprocessor.CellProcessorAdaptor

org.supercsv.cellprocessor.constraint.StrNotNullOrEmpty

All Implemented Interfaces:

CellProcessor, StringCellProcessor

public class StrNotNullOrEmpty
extends CellProcessorAdaptor
implements StringCellProcessor

This processor checks if the input is null or an empty string, and raises an exception in that case. In all other cases, the next processor in the chain is invoked.

You should only use this processor, when a column must be non-null, but you do not need to apply any other processor to the column.

If you apply other processors to the column, you can safely omit this processor as all other processors should do a null-check on its input.

Since:

1.50

Author:

Dominique De Vito

Field Summary

Fields inherited from class org.supercsv.cellprocessor.CellProcessorAdaptor

next

Constructor Summary

Constructors

Constructor and Description
StrNotNullOrEmpty() Constructs a new StrNotNullOrEmpty processor, which checks for null/empty Strings.
StrNotNullOrEmpty(CellProcessor next) Constructs a new StrNotNullOrEmpty processor, which checks for null/empty Strings, then calls the next processor in the chain.

Method Summary

Modifier and Type	Method and Description
Object	execute(Object value, CsvContext context) This method is invoked by the framework when the processor needs to process data or check constraints.

Methods inherited from class org.supercsv.cellprocessor.CellProcessorAdaptor

toString, validateInputNotNull

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StrNotNullOrEmpty

public StrNotNullOrEmpty()

Constructs a new StrNotNullOrEmpty processor, which checks for null/empty Strings.

StrNotNullOrEmpty

public StrNotNullOrEmpty(CellProcessor next)

Constructs a new StrNotNullOrEmpty processor, which checks for null/empty Strings, then calls the next processor in the chain.

Parameters:

next - the next processor in the chain

Throws:

NullPointerException - if next is null

Method Detail

execute

public Object execute(Object value,
                      CsvContext context)

This method is invoked by the framework when the processor needs to process data or check constraints.

Specified by:

execute in interface CellProcessor

Parameters:

value - the value to be processed

context - the CSV context

Returns:

the result of cell processor execution

Throws:

SuperCsvCellProcessorException - if value is null or isn't a String

SuperCsvConstraintViolationException - if value is an empty String