org.supercsv.cellprocessor.constraint

Class NotNull

java.lang.Object

org.supercsv.cellprocessor.CellProcessorAdaptor

org.supercsv.cellprocessor.constraint.NotNull

All Implemented Interfaces:

BoolCellProcessor, CellProcessor, DateCellProcessor, DoubleCellProcessor, LongCellProcessor, StringCellProcessor

public class NotNull
extends CellProcessorAdaptor
implements BoolCellProcessor, DateCellProcessor, DoubleCellProcessor, LongCellProcessor, StringCellProcessor

This processor ensures that the input is not null.

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 (i.e. a mandatory String column with no other conversions or constraints)

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
NotNull() Constructs a new NotNull which ensures that the input is not null.
NotNull(CellProcessor next) Constructs a new NotNull which ensures that the input is not null, 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

NotNull

public NotNull()

Constructs a new NotNull which ensures that the input is not null.

NotNull

public NotNull(CellProcessor next)

Constructs a new NotNull which ensures that the input is not null, then calls the next processor in the chain. All other processor should check for null inputs, so this constructor is not typically required.

Parameters:

next - the next processor in the chain

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