simplemapper.java

一个基于PlaceLab的室内和室外的智能导航系统

package org.placelab.mapper;

import java.util.Enumeration;
import java.util.Vector;

import org.placelab.core.Coordinate;

/**
 * A stub/do-nothing Mapper meant to be subclassed
 */
public abstract class SimpleMapper implements Mapper {
	public Beacon findBeacon(String id) {
		Vector b = findBeacons(id);
		if ((b==null) || (b.size() == 0)) return null;
		return ((Beacon)((Vector)b).elementAt(0));
	}
	
	public boolean putBeacons(String id, Vector list) {
		return false;
	}
	public boolean putBeacon(String id, Beacon beacon) {
		return false;
	}
	public Beacon createBeacon(String keyValuePairs) {
		return null;
	}

	public boolean close() {
		return false;
	}
	public boolean deleteAll() {
		return false;
	}
	public void endBulkPuts() {
	}
	public boolean isOpened() {
		return true;
	}
	public boolean open() {
		return false;
	}
	public void startBulkPuts() {
	}
	public Enumeration iterator() {
		return null;
	}
	public Enumeration query(Coordinate c1, Coordinate c2) {
		return null;
	}
}