com.opencsv.bean

Interface CsvToBeanFilter

Deprecated.

Please use BeanVerifier instead.

@Deprecated
public interface CsvToBeanFilter

Filters allow lines of input to be ignored before a bean is created.

Using a filter means you are looking at the data from the input after it has been parsed, but before a bean has been created and populated.

Filters must be thread-safe.

Here's an example showing how to use CsvToBean with a column name mapping and line filtering. It assumes that there is a class named Feature defined with setters setName(String) and setState(String). The FEATURE_NAME and STATE columns in the CSV file will be used. Any additional columns will be ignored. The filter will eliminate any lines where the STATE value is "production".

 
 private class StateFilter implements CsvToBeanFilter {

 	private final MappingStrategy strategy;

 	public StateFilter(MappingStrategy strategy) {
 		this.strategy = strategy;
 	}

 	public boolean allowLine(String[] line) {
 		String value = line[1];
 		boolean result = !"production".equals(value);
 		return result;
 	}

 }

 public List<Feature> parseCsv(InputStreamReader streamReader) {
 	HeaderColumnNameTranslateMappingStrategy<Feature> strategy = new HeaderColumnNameTranslateMappingStrategy();
 	Map<String, String> columnMap = new HashMap();
 	columnMap.put("FEATURE_NAME", "name");
 	columnMap.put("STATE", "state");
 	strategy.setColumnMapping(columnMap);
 	strategy.setType(Feature.class);
 	CSVReader reader = new CSVReader(streamReader);
 	CsvToBeanFilter filter = new StateFilter(strategy);
 	return new CsvToBean().parse(strategy, reader, filter);
 }
 
 

See Also:

BeanVerifier

Method Summary

Modifier and Type	Method and Description
boolean	allowLine(String[] line) Deprecated. Determines if a line from the CSV file will be included in the output of CsvToBean.

Method Detail

allowLine

boolean allowLine(String[] line)

Deprecated.

Determines if a line from the CSV file will be included in the output of CsvToBean.

Parameters:

line - A line of data from the CSV file

Returns:

True if the line is to be included in the output. Otherwise, false.