The OpenWire Wire Format
OpenWire is the default Wire Format that ActiveMQ uses. It provides a highly efficent binary format for high speed messaging. OpenWire options can be configured on a JMS client's connection URI string or on a Brokers transport bind URI.
Parameter Name
|
Default Value
|
Description
|
stackTraceEnabled
|
true
|
Should the stack trace of exception that occur on the broker be sent to the client?
|
tcpNoDelayEnabled
|
false
|
Does not affect the wire format, but provides a hint to the peer that TCP nodelay should be enabled on the communications Socket.
|
| cacheEnabled |
true
|
Should commonly repeated values be cached so that less marshalling occurs?
|
| tightEncodingEnabled |
true
|
Should wire size be optimized over CPU usage ?
|
| prefixPacketSize |
true
|
Should the size of the packet be prefixed before each packet is marshalled?
|
| maxInactivityDuration |
30000 |
The maximum inactivity duration (before which the socket is considered dead) in milliseconds. On some platforms it can take a long time for a socket to appear to die, so we allow the broker to kill connections if they are inactive for a period of time. Use by some transports to enable a keep alive heart beat feature. Set to a value <= 0 to disable inactivity monitoring. |
| cacheSize |
1024 |
If cacheEnabled is true, then this specifies the maximum number of values to cached. This property was added in ActiveMQ 4.1 |
Example Configuration
cf = new ActiveMQConnectionFactory("tcp:);
