| = System Properties |
| :index-group: Configuration |
| :jbake-date: 2018-12-05 |
| :jbake-type: page |
| :jbake-status: published |
| |
| |
| You can find a list of properties link:properties-listing.html[here]. |
| But read on to understand how these can be used. |
| |
| == Overriding openejb.xml |
| |
| Anything in the openejb.xml file can be overridden via system properties |
| of the format: |
| |
| `-D<id>.<property-name>=<property-value>` |
| |
| ..where id is the value in the config file for example: |
| |
| [source,xml] |
| ---- |
| <Connector id="mysql"> |
| JdbcDriver com.mysql.jdbc.Driver |
| JdbcUrl jdbc:mysql://localhost/test |
| UserName test |
| </Connector> |
| ---- |
| |
| Could be overridden as follows via system properties on the command |
| line: |
| |
| ______________________________________________________________________________________________________________________________ |
| ./bin/openejb start -Dmysql.JdbcDriver=com.mysql.jdbc.Driver |
| -Dmysql.JdbcUrl=jdbc:mysql://localhost/test -Dmysql.UserName=test |
| ______________________________________________________________________________________________________________________________ |
| |
| == Overriding Server Services |
| |
| Any server service installed into OpenEJB can be overridden in the same |
| fashion as things in the openejb.xml file. |
| |
| For example, when OpenEJB starts it prints out the following: |
| |
| [source,java] |
| ---- |
| ** Starting Services ** |
| NAME IP PORT |
| httpejbd 0.0.0.0 4204 |
| telnet 0.0.0.0 4202 |
| ejbd 0.0.0.0 4201 |
| hsql 0.0.0.0 9001 |
| activemq 127.0.0.1 4206 |
| derbynet 0.0.0.0 4205 |
| admin thread 0.0.0.0 4200 |
| ---- |
| |
| Each of those has the same standard xinet.d-like properties which can |
| also be configured as such: |
| |
| `-D<id>.<property-name>=<property-value>` |
| |
| ... where 'id' is the name of the server service and 'property-name' is |
| one of the following: bind, port, threads, disabled, only_from. |
| |
| So to set the address and port the ejbd service will bind to, simply |
| specify this on the command line: |
| |
| [source,properties] |
| ---- |
| ./bin/openejb start -Dejbd.bind=192.168.1.12 -Dejbd.port=9988 |
| ---- |