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There are several possible ways to refer to it, as follows.
Injected Name Match
The BY matching variable name actually matches the configured name of the resource.to resource name
| Code Block | ||||
|---|---|---|---|---|
| ||||
@Stateless
public class FooBean {
@Resource DataSource myDerbyDatabase;
}
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Name Attribute Match
The name attribute of the @Resource annotation matches the configured name of the resource.OR BY matching name
| Code Block | ||||
|---|---|---|---|---|
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@Stateless
public class FooBean {
@Resource(name="myDerbyDatabase")
DataSource dataSource;
}
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JNDI ENC Injection
We inject the resource into the JNDI environment using the name attribute of the @Resource to match the configured name of the resource.OR BY JNDI lookup
| Code Block | ||||
|---|---|---|---|---|
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@Resource(name="myDerbyDatabase", type="javax.sql.DataSource")
@Stateless
public class FooBean {
public void setSessionContext(SessionContext sessionContext) {
DataSource dataSource = (DataSource) sessionContext.lookup("myDerbyDatabase");
}
public void someOtherMethod() throws Exception {
InitialContext initialContext = new InitialContext();
DataSource dataSource = (DataSource) initialContext.lookup("java:comp/env/myDerbyDatabase");
}
}
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