package org.activityinfo.core.shared.importing.strategy; import org.activityinfo.core.shared.importing.source.SourceRow; public class MissingColumn implements ColumnAccessor { public final static MissingColumn INSTANCE = new MissingColumn(); private MissingColumn() { } @Override public String getHeading() { return null; } @Override public String getValue(SourceRow row) { return null; } @Override public boolean isMissing(SourceRow row) { return true; } }