C M P   2 . 0  

id

name

name

nickName

nick_name

VARCHAR

VARCHAR(64)

badness

badness

Listing 9 5, The jbosscmp jdbc.xml Entity Mapping 

In this case the DOCTYPE declaration is optional, but will reduce configuration errors. In 

addition, all of the elements are optional except for ejb name, which is used to match the 

configuration to an entity declared in the ejb jar.xml file. Unless noted otherwise, the default 

values come from the defaults section of the jbosscmp jdbc.xml file, which is discussed in 

Appendix B of the JBossCMP Documentation.  A detailed description of each entity element 

follows: 

Table 9 1, entity Tags 

Tag Name 

Description 

Required 

ejb name 

This is the name of the EJB to which this configuration 

Yes 

applies. This element must match the ejb name of an entity 

in the ejb jar.xml file. 

datasource 

This is the jndi name used to look up the datasource. All 

No, default is 

database connections used by an entity are obtained from the  java:/DefaultDS

datasource. Having different datasources for entities is not 

recommended, as it vastly constrains the domain over which 

finders and ejbSelects can query. 

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