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weblogic.management.configuration
Interface MessagingBridgeMBean

All Superinterfaces:

ConfigurationMBean, DeploymentMBean, DescriptorBean, DynamicDeploymentMBean, DynamicMBean, MBeanRegistration, NotificationBroadcaster, SettableBean, WebLogicMBean

public interface MessagingBridgeMBean

extends DynamicDeploymentMBean

This MBean represents a WebLogic messaging bridge. A messaging bridge instance interoperates between separate implementations of WebLogic JMS or between WebLogic JMS and another messaging product.

For WebLogic JMS and third-party JMS products, a messaging bridge communicates with a configured source and target destinations using the resource adapters provided with WebLogic Server.

BRIDGE_POLICY_AUTO

static final String BRIDGE_POLICY_AUTO

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Constant Field Values

BRIDGE_POLICY_MANUAL

static final String BRIDGE_POLICY_MANUAL

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Constant Field Values

BRIDGE_POLICY_SCHEDULED

static final String BRIDGE_POLICY_SCHEDULED

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Constant Field Values

BRIDGE_QOS_EXACTLY_ONCE

static final String BRIDGE_QOS_EXACTLY_ONCE

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Constant Field Values

BRIDGE_QOS_ATMOST_ONCE

static final String BRIDGE_QOS_ATMOST_ONCE

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Constant Field Values

BRIDGE_QOS_DUPLICATE_OKAY

static final String BRIDGE_QOS_DUPLICATE_OKAY

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Constant Field Values

getName

String getName()

The user-specified name of this MBean instance.

This name is included as one of the key properties in the MBean's javax.management.ObjectName:

Name=user-specified-name

Specified by:

getName in interface ConfigurationMBean

Specified by:

getName in interface WebLogicMBean

getSourceDestination

BridgeDestinationCommonMBean getSourceDestination()

The source destination from which this messaging bridge instance reads messages.

Returns:

The sourceDestination value

setSourceDestination

void setSourceDestination(BridgeDestinationCommonMBean sourceDestination)
                          throws InvalidAttributeValueException

Sets the value of the SourceDestination attribute.

Parameters:

sourceDestination - The new sourceDestination value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getSourceDestination()

getTargetDestination

BridgeDestinationCommonMBean getTargetDestination()

The target destination where a messaging bridge instance sends the messages it receives from the source destination.

Returns:

The targetDestination value

setTargetDestination

void setTargetDestination(BridgeDestinationCommonMBean targetDestination)
                          throws InvalidAttributeValueException

Sets the value of the TargetDestination attribute.

Parameters:

targetDestination - The new targetDestination value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getTargetDestination()

getSelector

String getSelector()

The filter for messages that are sent across the messaging bridge instance.

Only messages that match the selection criteria are sent across the messaging bridge:

• For queues, messages that do not match the selection criteria are left behind and accumulate in the queue.

• For topics, messages that do not match the connection criteria are dropped.

Returns:

The selector value

setSelector

void setSelector(String selector)
                 throws InvalidAttributeValueException

Sets the value of the Selector attribute.

Parameters:

selector - The new selector value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getSelector()

getQualityOfService

String getQualityOfService()

The QOS (quality of service) for this messaging bridge instance.

• Exactly-once: Each message in the source destination is transferred to the target exactly once. This is the highest QOS a messaging bridge instance can offer.

• Atmost-once: Each message in the source is transferred to the target only once with the possibility of being lost during the forwarding.

• Duplicate-okay: Messages in the source destination are transferred to the target (none are lost) but some may appear in the target more than once.

Returns:

The qualityOfService value

setQualityOfService

void setQualityOfService(String qos)
                         throws InvalidAttributeValueException

Sets the value of the QualityOfService attribute.

Parameters:

qos - The new qualityOfService value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getQualityOfService()

isQOSDegradationAllowed

boolean isQOSDegradationAllowed()

Specifies if this messaging bridge instance allows the degradation of its QOS (quality of service) when the configured QOS is not available.

• When enabled, the messaging bridge instance degrades the QOS when the configured QOS is not available. If the QOS is degraded, a log message is delivered to the WebLogic startup window or log file.

• When not enabled, if messaging bridge instance cannot satisfy the quality of service requested, an error results and the messaging bridge instance does not start.

Returns:

The qOSDegradationAllowed value

setQOSDegradationAllowed

void setQOSDegradationAllowed(boolean degradationAllowed)
                              throws InvalidAttributeValueException

Sets the value of the QOSDegradationAllowed attribute.

Parameters:

degradationAllowed - The new qOSDegradationAllowed value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.isQOSDegradationAllowed()

isDurabilityEnabled

boolean isDurabilityEnabled()

Specifies whether or not the messaging bridge allows durable messages.

When enabled and the source destination is a JMS topic, a messaging bridge instance uses a durable subscription to ensure that no messages are lost in the event of a failure. DurabilityEnabled ignored if the source destination is a JMS queue.

• When enabled and the source destination uses durable subscriptions, the source JMS implementation saves messages that are sent when a messaging bridge instance is not running. When the bridge instance is restarted, these messages are forwarded to the target destination. The administrator can choose not to be durable.

• When not enabled, messages that are sent to the source JMS implementation while the bridge instance is down cannot be forwarded to the target destination.

Returns:

The durabilityEnabled value

setDurabilityEnabled

void setDurabilityEnabled(boolean durable)
                          throws InvalidAttributeValueException

Sets the value of the DurabilityEnabled attribute.

Parameters:

durable - The new durabilityEnabled value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.isDurabilityEnabled()

getReconnectDelayMinimum

int getReconnectDelayMinimum()

The minimum amount of time, in seconds, that a messaging bridge instance waits before it tries to reconnect to the source or target destination after a failure.

Use with ReconnectDelayMaximum and ReconnectDelayIncrease. After the first failure to connect to a destination, the bridge instance waits for the number of seconds defined by ReconnectDelayMinimum. Each time a reconnect attempt fails, the bridge instance increases its waiting time by the number of seconds defined by ReconnectDelayIncrease. The maximum delay time is defined by ReconnectDelayMaximum. Once the waiting time is increased to the maximum value, the bridge instance stops increase its waiting time. Once the bridge instance successfully connects to the destination, the bridge instance resets its waiting time to the initial value defined by ReconnectDelayMinimum.

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Returns:

The reconnectDelayMinimum value

setReconnectDelayMinimum

void setReconnectDelayMinimum(int time)
                              throws InvalidAttributeValueException

Sets the value of the ReconnectDelayMinimum attribute.

Parameters:

time - The new reconnectDelayMinimum value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getReconnectDelayMinimum()

getReconnectDelayIncrease

int getReconnectDelayIncrease()

The incremental delay time, in seconds, that a messaging bridge instance increases its waiting time between one failed reconnection attempt and the next retry.

Use with ReconnectDelayMinimum and ReconnectDelayMaximum. After the first failure to connect to a destination, the bridge instance waits for the number of seconds defined by ReconnectDelayMinimum. Each time a reconnect attempt fails, the bridge instance increases its waiting time by the number of seconds defined by ReconnectDelayIncrease. The maximum delay time is defined by ReconnectDelayMaximum. Once the waiting time is increased to the maximum value, the bridge instance stops increase its waiting time. Once the bridge instance successfully connects to the destination, the bridge instance resets its waiting time to the initial value defined by ReconnectDelayMinimum.

Returns:

The reconnectDelayIncrease value

setReconnectDelayIncrease

void setReconnectDelayIncrease(int time)
                               throws InvalidAttributeValueException

Sets the value of the ReconnectDelayIncrease attribute.

Parameters:

time - The new reconnectDelayIncrease value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getReconnectDelayIncrease()

getReconnectDelayMaximum

int getReconnectDelayMaximum()

The longest amount of time, in seconds, that a messaging bridge instance waits between one failed attempt to connect to the source or target, and the next retry.

Use with ReconnectDelayMinimum and ReconnectDelayIncrease. After the first failure to connect to a destination, a bridge instance waits for the number of seconds defined by ReconnectDelayMinimum. Each time a reconnect attempt fails, the bridge instance increases its waiting time by the number of seconds defined by ReconnectDelayIncrease. The maximum delay time is defined by ReconnectDelayMaximum. Once the waiting time is increased to the maximum value, the bridge instance stops increase its waiting time. Once the bridge instance successfully connects to the destination, the bridge instance resets its waiting time to the initial value defined by ReconnectDelayMinimum.

Returns:

The reconnectDelayMaximum value

setReconnectDelayMaximum

void setReconnectDelayMaximum(int time)
                              throws InvalidAttributeValueException

Sets the value of the ReconnectDelayMaximum attribute.

Parameters:

time - The new reconnectDelayMaximum value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getReconnectDelayMaximum()

getIdleTimeMaximum

int getIdleTimeMaximum()

The maximum amount of time, in seconds, that a messaging bridge instance remains idle.

• In asynchronous mode, this is the longest amount of time a messaging bridge instance stays idle before it checks the sanity of its connection to the source.

• In synchronous mode, this is the amount of time the messaging bridge can block on a receive call if no transaction is involved.

Returns:

The idleTimeMaximum value

setIdleTimeMaximum

void setIdleTimeMaximum(int time)
                        throws InvalidAttributeValueException

Sets the value of the IdleTimeMaximum attribute.

Parameters:

time - The new idleTimeMaximum value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getIdleTimeMaximum()

getTransactionTimeout

int getTransactionTimeout()

The amount of time, in seconds, that the transaction manager waits for each transaction before timing it out.

• Transaction timeouts are used when the QOS (quality of service) for a messaging bridge instance requires transactions.

• If a bridge is configured with Exactly-once QOS, the receiving and sending is completed in one transaction.

Returns:

The transactionTimeout value

setTransactionTimeout

void setTransactionTimeout(int timeout)
                           throws InvalidAttributeValueException

Sets the value of the TransactionTimeout attribute.

Parameters:

timeout - The new transactionTimeout value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getTransactionTimeout()

isAsyncEnabled

boolean isAsyncEnabled()

Specifies if a messaging bridge instance forwards in asynchronous messaging mode.

AsyncEnabled only applies to messaging bridge instances whose source destination supports asynchronous receiving. Messaging bridges instances that forward in asynchronous mode are driven by the source destination. A messaging bridge instance listens for messages and forwards them as they arrive. When AsyncEnabled is not selected, a bridge instance is forced to work in synchronous mode, even if the source supports asynchronous receiving.

Note: For a messaging bridge instance with a QOS of Exactly-once to work in asynchronous mode, the source destination has to support the MDBTransaction interface. Otherwise, the bridge automatically switches to synchronous mode if it detects that MDBTransaction is not supported by the source destination.

Returns:

The asyncEnabled value

setAsyncEnabled

void setAsyncEnabled(boolean asyncEnabled)
                     throws InvalidAttributeValueException

Sets the value of the AsyncEnabled attribute.

Parameters:

asyncEnabled - The new asyncEnabled value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.isAsyncEnabled()

isStarted

boolean isStarted()

Specifies the initial operating state of a targeted messaging bridge instance.

• If enabled, the messaging bridge instance forwards messages (running).

• If not enabled, the messaging bridge instance does not forward messages (temporarily stopped).

After a messaging bridge has started forwarding messages (running), use Started to temporarily suspend an active messaging bridge instance or restart an stopped messaging bridge instance.

• Select the Started checkbox to start a messaging bridge instance that has been temporarily stopped.

• Clear the Started checkbox to temporarily stop a messaging bridge instance that was running.

• This value does not indicate the run-time state of a messaging bridge instance.

Returns:

The started value

setStarted

void setStarted(boolean started)
                throws InvalidAttributeValueException

Sets the value of the Started attribute.

Parameters:

started - The new started value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.isStarted()

getBatchSize

int getBatchSize()

The number of messages that are processed within one transaction.

Batch Size only applies to a messaging bridge instance forwarding messages in synchronous mode and has a QOS (quality of service) that requires two-phase transactions.

Returns:

The batchSize value

setBatchSize

void setBatchSize(int size)
                  throws InvalidAttributeValueException

Sets the value of the BatchSize attribute.

Parameters:

size - The new batchSize value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getBatchSize()

getBatchInterval

long getBatchInterval()

The maximum amount of time, in milliseconds, that a messaging bridge instance waits before sending a batch of messages in one transaction, regardless of whether the Batch Size has been reached or not.

• Only applies to a messaging bridge instance forwarding messages in synchronous mode and has a QOS (quality of service) that requires two-phase transactions.

• The default value of -1 indicates that the bridge instance waits until the number of messages reaches the Batch Size before it completes a transaction.

Returns:

The batchInterval value

setBatchInterval

void setBatchInterval(long interval)
                      throws InvalidAttributeValueException

Sets the value of the BatchInterval attribute.

Parameters:

interval - The new batchInterval value

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getBatchInterval()

getPreserveMsgProperty

boolean getPreserveMsgProperty()

Specifies if message properties are preserved when messages are forwarded by a bridge instance.

The following message properties are preserved:

• message ID

• message timestamp

• user ID

• delivery mode

• priority

• expiration time

• redelivery limit

• unit of order name

If the target bridge destination is on a foreign JMS server, the following message properties are preserved:

• delivery mode

• priority

• expiration time

Returns:

The PreserveMsgProperty value

setPreserveMsgProperty

void setPreserveMsgProperty(boolean preserveMsgProperty)
                            throws InvalidAttributeValueException

Sets the value of the preserveMsgProperty attribute.

Parameters:

preserveMsgProperty - Specifies if message properties are preserved when messages are forwarded by a bridge instance

Throws:

InvalidAttributeValueException

See Also:

MessagingBridgeMBean.getPreserveMsgProperty()

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