java ean 128

java ean 128

java barcode ean 128

java gs1 128

java barcode ean 128

java gs1 128,
java gs1-128,

java ean 128,
java gs1-128,
java gs1-128,
java gs1 128,
java gs1 128,
java barcode ean 128,
java gs1 128,
java gs1 128,
java ean 128,
java barcode ean 128,
java gs1-128,
java gs1 128,
java ean 128,
java gs1-128,
java gs1 128,
java ean 128,
java gs1 128,
java gs1-128,

java gs1 128,
java gs1 128,
java gs1-128,
java gs1-128,
java gs1 128,
java ean 128,
java barcode ean 128,
java gs1-128,
java barcode ean 128,
java ean 128,
java barcode ean 128,
java gs1-128,
java barcode ean 128,
java ean 128,
java gs1 128,
java gs1 128,
java barcode ean 128,
java barcode ean 128,
java gs1 128,
java gs1-128,
java barcode ean 128,
java ean 128,
java gs1-128,
java gs1-128,
java barcode ean 128,
java ean 128,
java barcode ean 128,
java gs1 128,
java barcode ean 128,
java gs1 128,
java gs1-128,
java gs1 128,
java gs1 128,
java ean 128,
java gs1 128,
java ean 128,
java ean 128,
java gs1-128,
java barcode ean 128,
java barcode ean 128,
java ean 128,
java gs1 128,
java barcode ean 128,
java gs1-128,
java gs1 128,
java gs1 128,
java barcode ean 128,
java barcode ean 128,
java barcode ean 128,

Table 8-3

Read the scenario and then answer the question that follows. Scenario You are a security designer at Wingtip Toys. The company wants to protect sensitive files that must be made available by using shares. You have gathered the fol lowing information and made the following decisions:

Members of this group are permitted to publish certificates to Active Directory. Members of this group are permitted administrative access to the DNS server service. This group allows administrators to set rights common to all support applications. By default, the group has only one member, the account associated with Microsoft support applications, such as Microsoft Remote Assistance. Do not add users to this group, which is managed automatically by the Help And Support service. Servers in this group for the Remote Access Service (RAS) and Internet Authentication Service (IAS) are permitted access to the remote access properties of users. Members of this group have access to Telnet Server on this system. Members of this group are DNS clients who are permitted to perform dynamic updates on behalf of some other clients (such as DHCP servers). Members of this group can perform administrative tasks on any computer anywhere in the domain. Members include all workstations and servers joined to the domain. By default, any computer account created in a domain is automatically added to this group.

Line 1 creates an extended persistence context. Lines 2 4 create, update, and delete some entity beans. These actions are queued until the persistence context becomes enlisted in a transaction in Line 5. The act of calling an EntityManager method enlists the persistence context in the transaction. The batched actions are then committed in Line 7. You can really exploit this behavior by using it with stateful session beans. The combination of stateful session beans, extended persistence contexts, and specific transaction demarcation gives you a lot of power to optimize and control your conversational state. Without these integrated features, you would have the painstaking task of managing all of these state changes within the stateful session bean itself. Now you can let the entity manager do most of the work for you.

8-12

Users who are authorized to read or read and modify documents of specific types are given appropriate permissions on the share, folder, and files by using discre tionary access control lists (DACLs). The servers are segmented behind an internal firewall. However, Wingtip Toys realizes that this security can be breached by current users whose computers are on that network segment, and potentially by other employees, contractors, and intruders who might gain entry to the area and the ability to connect to the network. To provide an extra layer of protection, you decide to use IPSec. This can provide data encryption to protect the data in case it is captured during transmis sion, and it can restrict communications to specific computers. This is not ideal because it will prevent authorized users from accessing data if they are not using one of the authorized computers but this inconvenience is small.

8

3-54

From the very start, we ve been focusing on finding a proper home for all code in an application. Business logic is accessible from session or message-driven beans, domain nouns are in entities, and services such as security and transactions are handled as configurable aspects by the container. However, there might be cross-cutting concerns demanded by your unique requirements that are too specific to be handled by an open specification. For these cases, EJB 3.1 provides a generic interception framework in the form of the Interceptors 1.1 Specification. Interceptors are objects that can interpose themselves on method calls or the lifecycle events of session and message-driven beans. They allow you to encapsulate common behavior that cuts across large parts of your application. This behavior is usually common code that you don t want polluting your business logic. Where most of the changes to the EJB 3.x specifications were designed to make EJB easier to use for application developers, interceptors are an advanced feature that provide you another way to modularize your application or even extend your EJB container. This chapter teaches you how to write an interceptor and shows you various real-world examples of where interceptors can be used.

Table 8-3

Default Groups in the Users Folder (Continued)