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java.lang.Object org.springframework.integration.channel.NullChannel
public class NullChannel
A channel implementation that essentially behaves like "/dev/null". All receive() calls will return null, and all send() calls will return true although no action is performed. Note however that the invocations are logged at debug-level.
Constructor Summary | |
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NullChannel()
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Method Summary | |
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Message<?> |
receive()
Receive a message from this channel, blocking indefinitely if necessary. |
Message<?> |
receive(long timeout)
Receive a message from this channel, blocking until either a message is available or the specified timeout period elapses. |
boolean |
send(Message<?> message)
Send a Message to this channel. |
boolean |
send(Message<?> message,
long timeout)
Send a message, blocking until either the message is accepted or the specified timeout period elapses. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public NullChannel()
Method Detail |
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public boolean send(Message<?> message)
MessageChannel
Message
to this channel. May throw a RuntimeException for
non-recoverable errors. Otherwise, if the Message cannot be sent for a
non-fatal reason this method will return 'false', and if the Message is
sent successfully, it will return 'true'.
Depending on the implementation, this method may block indefinitely.
To provide a maximum wait time, use MessageChannel.send(Message, long)
.
send
in interface MessageChannel
message
- the Message
to send
public boolean send(Message<?> message, long timeout)
MessageChannel
send
in interface MessageChannel
message
- the Message
to sendtimeout
- the timeout in milliseconds
true
if the message is sent successfully,
false if the specified timeout period elapses or
the send is interrupted
public Message<?> receive()
PollableChannel
receive
in interface PollableChannel
Message
or null
if interruptedpublic Message<?> receive(long timeout)
PollableChannel
receive
in interface PollableChannel
timeout
- the timeout in milliseconds
Message
or null
if the
specified timeout period elapses or the message reception is interrupted
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