Data File Loader

Nearly all tests need to load data from one or more files, particularly for prep or expected data. org.dbunit.util.fileloader has a set of data file loader classes that load datasets from files on the classpath, combining classpath-resource reading with ReplacementDataSet substitution — every dataset a loader returns has already had its configured replacement objects/substrings applied.

Each extends AbstractDataFileLoader, which implements the shared DataFileLoader contract: load(String filename) resolves filename as a classpath resource (via Class.getResource()), delegates the actual parsing to the wrapped format, then wraps the result in a ReplacementDataSet. A null/empty filename returns an empty DefaultDataSet rather than throwing.

A simple usage example:

DataFileLoader loader = new FlatXmlDataFileLoader();
IDataSet ds = loader.load("/the/package/prepData.xml");

Map<String, Object> replacementObjects = new HashMap<>();
replacementObjects.put("[NULL]", null);

DataFileLoader loader = new FlatXmlDataFileLoader(replacementObjects);
IDataSet ds = loader.load("/the/package/prepData.xml");