description

zero or one 

Contains a text description of this element. 

security-map

zero or more 

Maps the principal received during servlet or EJB authentication to the credentials accepted by the EIS. 

property

zero or more 

Specifies a property or a variable. 

name

none 

Specifies the name of the connection pool. A connector-resource element’s pool-name attribute refers to this name.

resource-adapter-name

none 

Specifies the name attribute of the deployed connector application element. If no name is specified during deployment, the name of the .rar file is used. If the resource adapter is embedded in an application, then it is app_name#rar_name.

connection-definition-name

none 

Specifies a unique name, identifying a resource adapter’s connection-definition element in the ra.xml file. This is usually the connectionfactory-interface of the connection-definition element.

steady-pool-size

8

(optional) Specifies the initial and minimum number of connections maintained in the pool. 

max-pool-size

32

(optional) Specifies the maximum number of connections that can be created to satisfy client requests. 

max-wait-time-in-millis

60000

(optional) Specifies the amount of time, in milliseconds, that the caller is willing to wait for a connection. If 0, the caller is blocked indefinitely until a resource is available or an error occurs.

pool-resize-quantity

2

(optional) Specifies the number of idle connections to be destroyed if the existing number of connections is above the steady-pool-size (subject to the max-pool-size limit).

This is enforced periodically at the idle-timeout-in-seconds interval. An idle connection is one that has not been used for a period of idle-timeout-in-seconds. When the pool size reaches steady-pool-size, connection removal stops.

idle-timeout-in-seconds

300

(optional) Specifies the maximum time that a connection can remain idle in the pool. After this amount of time, the pool can close this connection. 

fail-all-connections

false

(optional) If true, closes all connections in the pool if a single validation check fails.

transaction-support

none 

(optional) Specifies the transaction support for this connection pool. Overrides the transaction support defined in the resource adapter in a downward compatible way: supports a transaction level lower than or equal to the resource adapter’s, but not higher. Allowed values in descending order are: 

• XATransaction - Supports distributed transactions.

• LocalTransaction - Supports local transactions only.

• NoTransaction - No transaction support.

is-connection-validation-required

false

(optional) Specifies whether connections have to be validated before being given to the application. If a resource’s validation fails, it is destroyed, and a new resource is created and returned. 

validate-atmost-once-period-in-seconds

0

Specifies the time interval within which a connection is validated at most once. Minimizes the number of validation calls. A value of zero allows unlimited validation calls. 

connection-leak-timeout-in-seconds

0

Detects potential connection leaks by the application. A connection that is not returned back to the pool by the application within the specified period is assumed to be potentially leaking, and a stack trace of the caller is logged. A zero value disables leak detection. A nonzero value enables leak tracing. 

connection-leak-reclaim

false

If true, the pool will reclaim a connection after connection-leak-timeout-in-seconds occurs.

connection-creation-retry-attempts

0

Specifies the number of attempts to create a new connection. 

connection-creation-retry-interval-in-seconds

10

Specifies the time interval between attempts to create a connection when connection-creation-retry-attempts is greater than 0.

lazy-connection-enlistment

false

If true, a connection is not enlisted in a transaction until it is used. If false, any connection object available to a transaction is enlisted in the transaction.

lazy-connection-association

false

If true, a physical connection is not associated with a logical connection until it is used. If false, a physical connection is associated with a logical connection even before it is used.

associate-with-thread

false

If true, allows connections to be saved as ThreadLocal in the calling thread. Connections get reclaimed only when the calling thread dies or when the calling thread is not in use and the pool has run out of connections. If false, the thread must obtain a connection from the pool each time the thread requires a connection.

This attribute associates connections with a thread such that when the same thread is in need of connections, it can reuse the connections already associated with that thread. In this case, the overhead of getting connections from the pool is avoided. However, when this value is set to true, you should verify that the value of the max-pool-size attribute is comparable to the max-thread-pool-size attribute of the thread-pool element. If the max-thread-pool-size value is much higher than the max-pool-size value, a lot of time is spent associating connections with a new thread after dissociating them from an older one. Use this attribute in cases where the thread pool should reuse connections to avoid this overhead.

match-connections

true

If true, enables connection matching. You can set to false if connections are homogeneous.

max-connection-usage-count

0

Specifies the number of times a connections is reused by the pool, after which it is closed. A zero value disables this feature. By limiting the maximum number of times a connection can be reused, you can avoid statement leaks if the application does not close statements. 

ping

false

(optional) Specifies whether to ping the pool during pool creation or reconfiguration to identify and warn of any erroneous attribute values. 

pooling

true

(optional) If false, disables connection pooling.

AddressList

none 

Specifies a list of host/port combinations of the Message Queue software. For JMS resources of the Type javax.jms.TopicConnectionFactory or javax.jms.QueueConnectionFactory.

ClientId

none 

Specifies the JMS Client Identifier to be associated with a Connection created using the createTopicConnection method of the TopicConnectionFactory class. For JMS resources of the Type javax.jms.TopicConnectionFactory .

Durable subscription names are unique and only valid within the scope of a client identifier. To create or reactivate a durable subscriber, the connection must have a valid client identifier. The JMS specification ensures that client identifiers are unique and that a given client identifier is allowed to be used by only one active connection at a time. 

UserName

guest

Specifies the user name for connecting to the Message Queue software. For JMS resources of the Type javax.jms.TopicConnectionFactory or javax.jms.QueueConnectionFactory.

Password

guest

Specifies the password for connecting to the Message Queue software. For JMS resources of the Type javax.jms.TopicConnectionFactory or javax.jms.QueueConnectionFactory.

ReconnectAttempts

6

Specifies the number of attempts to connect (or reconnect) for each address in the imqAddressList before the client runtime moves on to try the next address in the list. A value of -1 indicates that the number of reconnect attempts is unlimited (the client runtime attempts to connect to the first address until it succeeds).

ReconnectInterval

30000

Specifies the interval between reconnect attempts in milliseconds. This applies to attempts on each address in the imqAddressList and on successive addresses in the list. If too short, this time interval does not give a broker time to recover. If too long, the reconnect might represent an unacceptable delay.

ReconnectEnabled

false

If true, specifies that the client runtime attempts to reconnect to a message server (or the list of addresses in imqAddressList) when a connection is lost.

AddressListBehavior

priority

Specifies whether connection attempts are in the order of addresses in the imqAddressList attribute (priority) or in a random order (random). If many clients are attempting a connection using the same connection factory, use a random order to prevent them from all being connected to the same address.

AddressListIterations

-1

Specifies the number of times the client runtime iterates through the imqAddressList in an effort to establish (or reestablish) a connection. A value of -1 indicates that the number of attempts is unlimited.

prefer-validate-over-recreate

false

Specifies that validating idle connections is preferable to closing them. This property has no effect on non-idle connections. If set to true, idle connections are validated during pool resizing, and only those found to be invalid are destroyed and recreated. If false, all idle connections are destroyed and recreated during pool resizing.

LazyConnectionEnlistment

false

Deprecated. Use the equivalent attribute. 

LazyConnectionAssociation

false

Deprecated. Use the equivalent attribute. 

AssociateWithThread

false

Deprecated. Use the equivalent attribute. 

MatchConnections

true

Deprecated. Use the equivalent attribute.