package org.basex.data;
import java.io.IOException;
import org.basex.io.serial.Serializer;
/**
* This is an interface for query results.
*
* @author BaseX Team 2005-12, BSD License
* @author Christian Gruen
*/
public interface Result {
/**
* Number of values, stored in the result instance.
* @return number of values
*/
long size();
/**
* Compares results for equality.
* @param r result to be compared
* @return true if results are equal
*/
boolean sameAs(Result r);
/**
* Serializes the complete result.
* @param ser serializer
* @throws IOException I/O exception
*/
void serialize(Serializer ser) throws IOException;
/**
* Serializes the specified result.
* @param ser serializer
* @param n results offset to serialize
* @throws IOException I/O exception
*/
void serialize(Serializer ser, int n) throws IOException;
}