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BlueCove is JSR-82 J2SE implementation that currently interfaces with the Mac OS X, WIDCOMM, BlueSoleil and Microsoft Bluetooth stack
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/**
 *  BlueCove - Java library for Bluetooth
 *
 *  Java docs licensed under the Apache License, Version 2.0
 *  http://www.apache.org/licenses/LICENSE-2.0 
 *   (c) Copyright 2001, 2002 Motorola, Inc.  ALL RIGHTS RESERVED.
 *
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 *  
 *  @version $Id: DiscoveryListener.java 2530 2008-12-09 18:52:53Z skarzhevskyy $
 */
package javax.bluetooth;

/**
 * The DiscoveryListener interface allows an application to receive
 * device discovery and service discovery events. This interface provides four
 * methods, two for discovering devices and two for discovering services.
 * 
 * The JSR 82 specification does not require that implementations create
 * individual threads for event delivery. Thus, if a DiscoveryListener method
 * does not return or the return is delayed, the system may be blocked. So the
 * following note is given for application developers :
 * 
 * 
 * The following DiscoveryListener methods SHOULD return immediately :
 * 

 * DiscoveryListener.deviceDiscovered
 * DiscoveryListener.inquiryCompleted
 * DiscoveryListener.servicesDiscovered
 * DiscoveryListener.serviceSearchCompleted
 * 
 * 
 */
public interface DiscoveryListener {

	/**
	 * Indicates the normal completion of device discovery. Used with the
	 * {@link #inquiryCompleted(int)} method. 
	 * 
	 * The value of INQUIRY_COMPLETED is 0x00 (0).
	 * 
	 * @see #inquiryCompleted(int)
	 * @see DiscoveryAgent#startInquiry(int, javax.bluetooth.DiscoveryListener)
	 */
	public static final int INQUIRY_COMPLETED = 0x00;

	/**
	 * Indicates device discovery has been canceled by the application and did
	 * not complete. Used with the {@link #inquiryCompleted(int)} method. 
	 * 

	 * The value of INQUIRY_TERMINATED is 0x05 (5).
	 * 
	 * @see  #inquiryCompleted(int)
	 * @see DiscoveryAgent#startInquiry(int, javax.bluetooth.DiscoveryListener)
	 * @see DiscoveryAgent#cancelInquiry(javax.bluetooth.DiscoveryListener)
	 */
	public static final int INQUIRY_TERMINATED = 0x05;

	/**
	 * Indicates that the inquiry request failed to complete normally, but was
	 * not cancelled. 
	 * 

	 * The value of INQUIRY_ERROR is 0x07 (7).
	 * 
	 * @see  #inquiryCompleted(int)
	 * @see DiscoveryAgent#startInquiry(int, javax.bluetooth.DiscoveryListener)
	 */
	public static final int INQUIRY_ERROR = 0x07;

	/**
	 * Indicates the normal completion of service discovery. Used with the
	 * {@link #serviceSearchCompleted(int, int)} method. 
	 * 

	 * The value of SERVICE_SEARCH_COMPLETED is 0x01 (1).
	 * 
	 * @see #serviceSearchCompleted(int, int)
	 * @see DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener)
	 */
	public static final int SERVICE_SEARCH_COMPLETED = 0x01;

	/**
	 * Indicates the service search has been canceled by the application and did
	 * not complete. Used with the {@link #serviceSearchCompleted(int, int)} method. 
	 * 

	 * The value of SERVICE_SEARCH_TERMINATED is 0x02 (2).
	 * 
	 * @see  #serviceSearchCompleted(int, int)
	 * @see DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener)
	 * @see DiscoveryAgent#cancelServiceSearch(int)
	 */
	public static final int SERVICE_SEARCH_TERMINATED = 0x02;

	/**
	 * Indicates the service search terminated with an error. Used with the
	 * {@link #serviceSearchCompleted(int, int)} method. 
	 * 

	 * The value of SERVICE_SEARCH_ERROR is 0x03 (3).
	 * 
	 * @see #serviceSearchCompleted(int, int)
	 * @see DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener)
	 */
	public static final int SERVICE_SEARCH_ERROR = 0x03;

	/**
	 * Indicates the service search has completed with no service records found
	 * on the device. Used with the {@link #serviceSearchCompleted(int, int)} method. 
	 * 

	 * The value of SERVICE_SEARCH_NO_RECORDS is 0x04 (4).
	 * 
	 * @see #serviceSearchCompleted(int, int)
	 * @see DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener)
	 */
	public static final int SERVICE_SEARCH_NO_RECORDS = 0x04;

	/**
	 * Indicates the service search could not be completed because the remote
	 * device provided to {@link DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener) 
	 * DiscoveryAgent.searchServices()} could not be reached.
	 * Used with the {@link #serviceSearchCompleted(int, int)} method. 
	 * 

	 * The value of SERVICE_SEARCH_DEVICE_NOT_REACHABLE is 0x06 (6).
	 * 
	 * @see #serviceSearchCompleted(int, int)
	 * @see DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener)
	 */
	public static final int SERVICE_SEARCH_DEVICE_NOT_REACHABLE = 0x06;

    /**
     * Called when a device is found during an inquiry. An inquiry searches for
     * devices that are discoverable. During Bluetooth inquiry, a Bluetooth API
     * implementation MUST report each discovered remote Bluetooth device only
     * once. In other words, a Bluetooth API implementation MUST call the
     * DiscoveryListener.deviceDiscovered() method only once for each
     * individual discovered remote device.
     * 
     * @param btDevice
     *            the device that was found during the inquiry
     * @param cod
     *            - the service classes, major device class, and minor device
     *            class of the remote device
     * @see DiscoveryAgent#startInquiry(int, javax.bluetooth.DiscoveryListener)
     */
	public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod);

	/**
	 * Called when service(s) are found during a service search. 
	 * 
	 * @param transID the transaction ID of the service search that is posting the
	 * result 
	 * @param servRecord  a list of services found during the search request 
	 * @see DiscoveryAgent#searchServices(int[], javax.bluetooth.UUID[],
	 * javax.bluetooth.RemoteDevice, javax.bluetooth.DiscoveryListener)
	 */
	public void servicesDiscovered(int transID, ServiceRecord[] servRecord);

	/**
	 * Called when a service search is completed or was terminated because of an
	 * error. Legal status values in the {@code respCode} argument include
	 * {@link #SERVICE_SEARCH_COMPLETED}, {@link #SERVICE_SEARCH_TERMINATED},
	 * {@link #SERVICE_SEARCH_ERROR}, {@link #SERVICE_SEARCH_NO_RECORDS} and
	 * {@link #SERVICE_SEARCH_DEVICE_NOT_REACHABLE}. The following table describes when
	 * each {@code respCode} will be used: 
	 * 
	 * 
	 * 			
	 * 
	 * 			
	 * 
	 * 			
	 * 
	 * 			
	 * 
	 * 			respCode Reason
{@link #SERVICE_SEARCH_COMPLETED} if the service search completed normally
{@link #SERVICE_SEARCH_TERMINATED} if the service search request was cancelled by a call to
	 * 			{@link DiscoveryAgent#cancelServiceSearch(int)}
{@link #SERVICE_SEARCH_ERROR} if an error occurred while processing the request
{@link #SERVICE_SEARCH_NO_RECORDS} if no records were found during the service search
{@link #SERVICE_SEARCH_DEVICE_NOT_REACHABLE} if the device specified in the search request could not be reached or 
	 * 			the local device could not establish a connection to the remote device
	 * 
	 * 
	 * @param transID the transaction ID identifying the request which
	 * initiated the service search 
	 * @param respCode  the response code that indicates the status of the transaction
	 */
	public void serviceSearchCompleted(int transID, int respCode);

	/**
	 * Called when an inquiry is completed. The {@code discType} will be
	 * {@link #INQUIRY_COMPLETED} if the inquiry ended normally or {@link #INQUIRY_TERMINATED}
	 * if the inquiry was canceled by a call to 
	 * {@link DiscoveryAgent#cancelInquiry(DiscoveryListener)}. The {@code discType} will be 
	 * {@link #INQUIRY_ERROR} if an error occurred while processing the inquiry causing the 
	 * inquiry to end abnormally. 
	 * 
	 * @param discType the type of request that was completed; either 
	 * 				{@link #INQUIRY_COMPLETED}, {@link #INQUIRY_TERMINATED}, 
	 * 				or {@link #INQUIRY_ERROR}
	 * @see #INQUIRY_COMPLETED
	 * @see #INQUIRY_TERMINATED
	 * @see #INQUIRY_ERROR
	 */
	public void inquiryCompleted(int discType);
}
respCode	Reason
{@link #SERVICE_SEARCH_COMPLETED}	if the service search completed normally
{@link #SERVICE_SEARCH_TERMINATED}	if the service search request was cancelled by a call to * {@link DiscoveryAgent#cancelServiceSearch(int)}
{@link #SERVICE_SEARCH_ERROR}	if an error occurred while processing the request
{@link #SERVICE_SEARCH_NO_RECORDS}	if no records were found during the service search
{@link #SERVICE_SEARCH_DEVICE_NOT_REACHABLE}	if the device specified in the search request could not be reached or * the local device could not establish a connection to the remote device *