public UserTransactionContext(Context componentContext) 
{
        this.componentContext = componentContext;
}

 protected Context getContext() throws NamingException 
{
        return this.componentContext;
}

 public static UserTransaction getUserTransaction(Context componentContext) 
{
        try {
            return (UserTransaction)componentContext.lookup(USER_TRANSACTION);
        } catch (NamingException e) {
            return null;
        }
}

 public static boolean hasUserTransaction(Context componentContext) 
{
  
        UserTransaction userTransaction = getUserTransaction(componentContext);
        return (userTransaction != null);
}

 public NamingEnumeration list(String name) throws NamingException 
{
        if (name == null) {
            throw new NullPointerException("name is null");
        }
        return list(getNameParser(name).parse(name));
}

 public NamingEnumeration list(Name name) throws NamingException 
{
        if (name == null) {
            throw new NullPointerException("name is null");
        }
        if (name.isEmpty()) {
            return list();
        }
        Object target = null;
        try {
            target = super.lookup(name);
        } catch (NamingException e) {
            throw new NotContextException(name.toString());
        }
        if (target == this) {
            return list();
        } else if (target instanceof Context) {
            return ((Context) target).list("");
        } else {
            throw new NotContextException("The name " + name + " cannot be listed");
        }
}

 public NamingEnumeration listBindings(String name) throws NamingException 
{
        if (name == null) {
            throw new NullPointerException("name is null");
        }
        return listBindings(getNameParser(name).parse(name));
}

 public NamingEnumeration listBindings(Name name) throws NamingException 
{
        if (name == null) {
            throw new NullPointerException("name is null");
        }
        if (name.isEmpty()) {
            return listBindings();
        }
        Object target = null;
        try {
            target = super.lookup(name);
        } catch (NamingException e) {
            throw new NotContextException(name.toString());
        }
        if (target == this) {
            return listBindings();
        } else if (target instanceof Context) {
            return ((Context) target).listBindings("");
        } else {
            throw new NotContextException("The name " + name + " cannot be listed");
        }
}

 public Object lookup(Name name) throws NamingException 
{
        if (name != null && name.size() == 1 && name.get(0).equals(USER_TRANSACTION)) {
            return getUserTransaction();
        } else {
            return super.lookup(name);
        }
}

 public Object lookup(String name) throws NamingException 
{
        if (name != null && name.equals(USER_TRANSACTION)) {
            return getUserTransaction();
        } else {
            return super.lookup(name);
        }
}