I am not sure to understand but is it what you try to achieve ?
import java.util.Date;
public interface TimeRange<T,K> extends Comparable<T> {
public K Builder();
public static interface TimeRangeBuilder<T> {
public TimeRangeBuilder<T> startDate(Date startDate);
public TimeRangeBuilder<T> endDate(Date endDate);
public T build();
}
public Date getStartDate();
public Date getEndDate();
}
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
public class VidArchive implements TimeRange<VidArchive, VidArchive.Builder> {
/** date format used to convert Date objects to human-readable form for the toString() function */
private static final DateFormat DATE_FORMAT = new SimpleDateFormat("HH:mm:ss");
private final byte[] bytes;
private final String cam;
private final Date startDate;
private final Date endDate;
private final String fileName;
private final String directory;
private Builder builder;
@Override
public Builder Builder() {
return builder;
}
public static class Builder implements TimeRangeBuilder<VidArchive> {
private byte[] bytes;
private String cam;
private Date startDate;
private Date endDate;
private String fileName;
private String directory;
public Builder() {}
public Builder bytes(byte[] bytes) { this.bytes = bytes; return this; }
public Builder cam(String cam) { this.cam = cam; return this; }
@Override
public Builder startDate(Date startDate) { this.startDate = startDate; return this; }
@Override
public Builder endDate(Date endDate) { this.endDate = endDate; return this; }
public Builder fileName(String fileName) { this.fileName = fileName; return this; }
public Builder directory(String directory) { this.directory = directory; return this; }
@Override
public VidArchive build() { return new VidArchive(this); }
}
private VidArchive(Builder builder) {
this.builder = builder;
bytes = builder.bytes;
cam = builder.cam;
startDate = builder.startDate;
endDate = builder.endDate;
fileName = builder.fileName;
directory = builder.directory;
}
public byte[] getBytes() { return bytes; }
public String getCam() { return cam; }
@Override
public Date getStartDate() { return startDate; }
@Override
public Date getEndDate() { return endDate; }
public String getFileName() { return fileName; }
public String getDirectory() { return directory; }
@Override
public int compareTo(VidArchive vidArchive) {
return startDate.compareTo(vidArchive.getStartDate());
}
@Override
public String toString() {
return DATE_FORMAT.format(startDate) + " - " + DATE_FORMAT.format(endDate);
}
}