JbpmConfiguration学习

java 代码

configuration of one jBPM instance

During process execution, jBPM might need to use some services.
A JbpmConfiguration contains the knowledge on how to create those services.

A JbpmConfiguration is a thread safe object and serves as a factory for
{@link org.jbpm.JbpmContext}s, which means one JbpmConfiguration
can be used to create {@link org.jbpm.JbpmContext}s for all threads.
The single JbpmConfiguration can be maintained in a static member or
in the JNDI tree if that is available.

A JbpmConfiguration can be obtained in following ways:

from a resource (by default jbpm.cfg.xml is used):
JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();

or

String myXmlResource = "...";
JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance(myXmlResource);

from an XML string:
JbpmConfiguration jbpmConfiguration = JbpmConfiguration.parseXmlString(
"<jbpm-configuration></jbpm-configuration>" +
 ...
""

By specifying a custom implementation of an object factory.  This can be
used to specify a JbpmConfiguration in other bean-style notations such as
used by JBoss Microcontainer or Spring.
ObjectFactory of = new MyCustomObjectFactory();
JbpmConfiguration.Configs.setDefaultObjectFactory(of);
JbpmConfiguration jbpmConfiguration = JbpmConfiguration.getInstance();


jbpmConfigurations can be configured using a spring-like XML notation
(in relax ng compact notation):

main method:
========>createSchema()
========>dropSchema()
========>createJbpmContext()
========>getCurrentJbpmContext()