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Local Client (embedded container)

Properties p = new Properties();
p.put("java.naming.factory.initial", "org.apache.openejb.client.LocalInitialContextFactory");

InitialContext ctx = new InitialContext(p);

MyBean myBean = (MyBean) ctx.lookup("MyBeanRemote");

Local Client (non-default realm name)

Login configuration file (conf/login.config)

PropertiesLogin {
    org.apache.openejb.core.security.jaas.PropertiesLoginModule required
    Debug=true
    UsersFile="users.properties"
    GroupsFile="groups.properties";
};
MyApp {
    org.apache.openejb.core.security.jaas.SQLLoginModule required
    dataSourceName="MyDataSource"
    userSelect="SELECT username, password FROM users WHERE username=?"
    groupSelect="SELECT username, grp FROM users WHERE username=?";
};

Code

Properties p = new Properties();
p.put("java.naming.factory.initial", "org.apache.openejb.client.LocalInitialContextFactory");
p.put("openejb.authentication.realmName", "MyApp");

InitialContext ctx = new InitialContext(p);

MyBean myBean = (MyBean) ctx.lookup("MyBeanRemote");

Remote Client (openejb standalone)

Properties p = new Properties();
p.put("java.naming.factory.initial", "org.apache.openejb.client.RemoteInitialContextFactory");
p.put("java.naming.provider.url", "ejbd://localhost:4201");
// user and pass optional
p.put("java.naming.security.principal", "myuser");
p.put("java.naming.security.credentials", "mypass");

InitialContext ctx = new InitialContext(p);

MyBean myBean = (MyBean) ctx.lookup("MyBeanRemote");

Remote Client with HTTP (openejb standalone)

Properties p = new Properties();
p.put("java.naming.factory.initial", "org.apache.openejb.client.RemoteInitialContextFactory");
p.put("java.naming.provider.url", "http://localhost:4204/ejb");
// user and pass optional
p.put("java.naming.security.principal", "myuser");
p.put("java.naming.security.credentials", "mypass");

InitialContext ctx = new InitialContext(p);

MyBean myBean = (MyBean) ctx.lookup("MyBeanRemote");

Remote Client with HTTP (in TomEE)

Properties p = new Properties();
p.put("java.naming.factory.initial", "org.apache.openejb.client.RemoteInitialContextFactory");
p.put("java.naming.provider.url", "http://127.0.0.1:8080/tomee/ejb");
// user and pass optional
p.put("java.naming.security.principal", "myuser");
p.put("java.naming.security.credentials", "mypass");

InitialContext ctx = new InitialContext(p);

MyBean myBean = (MyBean) ctx.lookup("MyBeanRemote");

Remote Client using @EJB Injection

see here: ejb-refs