Java and Electronic Mail - Java - page 702

Example 17-6. email/MailConstants.java
/** Simple list of Properties keys for the Mail System. */
public

public class class MailConstants MailConstants {

public public static static final final String PROPS_FILE_NAME = "MailClient.properties" ;

public public static static final final String SEND_PROTO = "Mail.send.protocol" ;

public public static static final final String SEND_USER = "Mail.send.user" ;

public public static static final final String SEND_PASS = "Mail.send.password" ;

public public static static final final String SEND_ROOT = "Mail.send.root" ;

public public static static final final String SEND_HOST = "Mail.send.host" ;

public public static static final final String SEND_DEBUG = "Mail.send.debug" ;

public public static static final final String RECV_PROTO = "Mail.receive.protocol" ;

public public static static final final String RECV_PORT = "Mail.receive.port" ;

public public static static final final String RECV_USER = "Mail.receive.user" ;

public public static static final final String RECV_PASS = "Mail.receive.password" ;

public public static static final final String RECV_ROOT = "Mail.receive.root" ;

public public static static final final String RECV_HOST = "Mail.receive.host" ;

public public static static final final String RECV_DEBUG = "Mail.receive.debug" ;

}

The fields in this class can be referred to by their full names—for example, MailCon-
stants.RECV_PROTO . However, that is almost as much typing as the original long string
( Mail.receive.protocol ). As a shortcut, programs that use more than a few of the fields
will want to use the static import mechanism, and then can refer to the fields as part of
their class (e.g., RECV_PROTO ). This is used to good effect in Example 17-10 .

Reading Email

Problem

You need to read electronic mail in a program.

Solution

Use a JavaMail Store .