Package org.apache.catalina.tribes.group

Class RpcChannel

java.lang.Object

org.apache.catalina.tribes.group.RpcChannel

All Implemented Interfaces:

ChannelListener

public class RpcChannel
extends Object
implements ChannelListener

A channel to handle RPC messaging

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RpcChannel.RpcCollector	Class that holds all response.
static class	RpcChannel.RpcCollectorKey

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ALL_REPLY
static final int	FIRST_REPLY
static final int	MAJORITY_REPLY
static final int	NO_REPLY
protected static final StringManager	sm

Constructor Summary

Constructors

Constructor	Description
RpcChannel(byte[] rpcId, Channel channel, RpcCallback callback)	Create an RPC channel.

Method Summary

Modifier and Type	Method	Description
boolean	accept(Serializable msg, Member sender)	Invoked by the channel to determine if the listener will process this message or not.
void	breakdown()
RpcCallback	getCallback()
Channel	getChannel()
int	getReplyMessageOptions()
byte[]	getRpcId()
void	messageReceived(Serializable msg, Member sender)	Receive a message from the channel
Response[]	send(Member[] destination, Serializable message, int rpcOptions, int channelOptions, long timeout)	Send a message and wait for the response.
void	setCallback(RpcCallback callback)
void	setChannel(Channel channel)
void	setReplyMessageOptions(int replyMessageOptions)
void	setRpcId(byte[] rpcId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

sm

protected static final StringManager sm

FIRST_REPLY

public static final int FIRST_REPLY

See Also:

• Constant Field Values

MAJORITY_REPLY

public static final int MAJORITY_REPLY

See Also:

• Constant Field Values

ALL_REPLY

public static final int ALL_REPLY

See Also:

• Constant Field Values

NO_REPLY

public static final int NO_REPLY

See Also:

• Constant Field Values

Constructor Details

RpcChannel

public RpcChannel(byte[] rpcId,
 Channel channel,
 RpcCallback callback)

Create an RPC channel. You can have several RPC channels attached to a group all separated out by the uniqueness

Parameters:

rpcId - - the unique Id for this RPC group

channel - Channel

callback - RpcCallback

Method Details

send

public Response[] send(Member[] destination,
 Serializable message,
 int rpcOptions,
 int channelOptions,
 long timeout)
                throws ChannelException

Send a message and wait for the response.

Parameters:

destination - Member[] - the destination for the message, and the members you request a reply from

message - Serializable - the message you are sending out

rpcOptions - int - FIRST_REPLY, MAJORITY_REPLY or ALL_REPLY

channelOptions - channel sender options

timeout - long - timeout in milliseconds, if no reply is received within this time null is returned

Returns:

Response[] - an array of response objects.

Throws:

ChannelException - Error sending message

messageReceived

public void messageReceived(Serializable msg,
 Member sender)

Description copied from interface: ChannelListener

Receive a message from the channel

Specified by:

messageReceived in interface ChannelListener

Parameters:

msg - Serializable

sender - - the source of the message

breakdown

public void breakdown()

accept

public boolean accept(Serializable msg,
 Member sender)

Description copied from interface: ChannelListener

Invoked by the channel to determine if the listener will process this message or not.

Specified by:

accept in interface ChannelListener

Parameters:

msg - Serializable

sender - Member

Returns:

boolean

getChannel

public Channel getChannel()

getCallback

public RpcCallback getCallback()

getRpcId

public byte[] getRpcId()

setChannel

public void setChannel(Channel channel)

setCallback

public void setCallback(RpcCallback callback)

setRpcId

public void setRpcId(byte[] rpcId)

getReplyMessageOptions

public int getReplyMessageOptions()

setReplyMessageOptions

public void setReplyMessageOptions(int replyMessageOptions)