Package org.supercsv.cellprocessor
Class ConvertNullTo
java.lang.Object
org.supercsv.cellprocessor.CellProcessorAdaptor
org.supercsv.cellprocessor.ConvertNullTo
- All Implemented Interfaces:
BoolCellProcessor
,CellProcessor
,DateCellProcessor
,DoubleCellProcessor
,LongCellProcessor
,StringCellProcessor
- Direct Known Subclasses:
Optional
public class ConvertNullTo
extends CellProcessorAdaptor
implements BoolCellProcessor, DateCellProcessor, DoubleCellProcessor, LongCellProcessor, StringCellProcessor
This processor returns a specified default value if the input is null. This is handy when writing partially
filled beans, maps and arrays, as for each column a default value can be specified.
To return the String "" when a null is encountered use
new ConvertNullTo("\"\"");
If you need further processing of the value in case the value is not null, you can link the processor with
other processors such as
new ConvertNullTo("\"\"", new Truncate(3))
- Since:
- 1.20
-
Field Summary
FieldsFields inherited from class org.supercsv.cellprocessor.CellProcessorAdaptor
next
-
Constructor Summary
ConstructorsConstructorDescriptionConvertNullTo
(Object returnValue) Constructs a new ConvertNullTo processor, which returns a specified default value if the input is null.ConvertNullTo
(Object returnValue, CellProcessor next) Constructs a new ConvertNullTo processor, which returns a specified default value if the input is null. -
Method Summary
Modifier and TypeMethodDescriptionexecute
(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
-
Field Details
-
returnValue
-
-
Constructor Details
-
ConvertNullTo
Constructs a new ConvertNullTo processor, which returns a specified default value if the input is null.- Parameters:
returnValue
- the value to return if the input is null
-
ConvertNullTo
Constructs a new ConvertNullTo processor, which returns a specified default value if the input is null. If the input is not null, then the next processor is executed.- Parameters:
returnValue
- the value to return if the input is nullnext
- the next CellProcessor in the chain- Throws:
NullPointerException
- if next is null
-
-
Method Details
-
execute
This method is invoked by the framework when the processor needs to process data or check constraints.- Specified by:
execute
in interfaceCellProcessor
- Parameters:
value
- the value to be processedcontext
- the CSV context- Returns:
- the result of cell processor execution
-