GVJDBCConnectionBuilder

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Contents

Description

This element defines the helpers necessary to create JDBC connections.

VulCon / GV Console Configuration

GreenVulcano® ESB uses the GVJDBCConnectionBuilder adapter for creating JDBC connections. It is used by DataHandler, Excel Report and sql*{{...}} metadata.

If the client's requested connection isn't configured the GVJDBCConnectionBuilder try to instantiate a DataSourceConnectionBuilder using the requested connection name as a DataSource JNDI name.

The following table shows the GVJDBCConnectionBuilder element's attributes:

Attribute Type Description
type fixed This attribute must assume the value module.
name fixed This attribute must assume the value GVJDBC.

Might contain the following sub-elements:

DataSourceConnectionBuilder

Creates a JDBC connection using a DataSource.

The following table shows the DataSourceConnectionBuilder element's attributes:

Attribute Type Description
type fixed This attribute must assume the value jdbc-connection-builder
class fixed This attribute must assume the value it.greenvulcano.gvesb.j2ee.db.connections.impl.DataSourceConnectionBuilder.
name required Builder name.
data-source-jndi required DataSource JNDI name.

Might contain the following sub-elements:

DriverConnectionBuilder

Creates a JDBC connection using the DriverManager.

The following table shows the DriverConnectionBuilder element's attributes:

Attribute Type Description
type fixed This attribute must assume the value jdbc-connection-builder
class fixed This attribute must assume the value it.greenvulcano.gvesb.j2ee.db.connections.impl.DriverConnectionBuilder.
name required Builder name.
driver-class required JDBC driver class.
url required JDBC connection URL.
user optional user name.
password optional password.

DriverPoolConnectionBuilder

Creates a JDBC connection pool using Apache DBCP.

The following table shows the DriverPoolConnectionBuilder element's attributes:

Attribute Type Description
type fixed This attribute must assume the value jdbc-connection-builder
class fixed This attribute must assume the value it.greenvulcano.gvesb.j2ee.db.connections.impl.DriverPoolConnectionBuilder.
name required Builder name.
driver-class required JDBC driver class.
url required JDBC connection URL.
user optional user name.
password optional password.

Might contain the following sub-elements:

PoolParameters

Apache DBCP Pool parameters. All time values are in seconds.

The following table shows the PoolParameters element's attributes:

Attribute Type Description
minIdle optional Controls the maximum number of objects that can sit idle in the pool at any time.

When negative, there is no limit to the number of objects that may be idle at one time. The default setting for this parameter is 5.

maxIdle optional Controls the maximum number of objects that can sit idle in the pool at any time.

When negative, there is no limit to the number of objects that may be idle at one time. The default setting for this parameter is 10.

maxActive optional Controls the maximum number of objects that can be allocated by the pool (checked out to clients, or idle awaiting checkout) at a given time.

When non-positive, there is no limit to the number of objects that can be managed by the pool at one time. When maxActive is reached, the pool is said to be exhausted. The default setting for this parameter is 15.

timeBetweenEvictionRuns optional Indicates how long the eviction thread should sleep before "runs" of examining idle objects. When non-positive, no eviction thread will be launched.

The default setting for this parameter is 300 seconds (i.e., 5 minutes).

minEvictableIdleTime optional Specifies the minimum amount of time that an object may sit idle in the pool before it is eligible for eviction due to idle time.

When non-positive, no object will be dropped from the pool due to idle time alone. This setting has no effect unless timeBetweenEvictionRuns > 0. The default setting for this parameter is 300 seconds (i.e., 5 minutes).

Its sub-elements are:

  • Description
  • validationQuery: Apache DBCP pooled connection validation query.


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