Some simple but good tutorials (if you dont mind all the banner ads) available here:
http://www.roseindia.net/hibernate/
Lots of examples which is worth its weight in gold.
Hibernate Synchroniser
This article on OnJava.com demonstrates the use of the HibernateSynchroniser plugin for Eclipse that apparently keeps hbm mappings in line with Java code.
The page is a bit old but references Eclipse 3.2, so hopefully the plugin is still useful.
I’ve been using the JBoss Hibernate Tools which just entered 3.2 GA and it seems to be making leaps and bounds. The only crux is that you need to do a lot of preconfig work, it may be harder to introduce into an already established project that does its hibernate config programmatically.
One to One Mappings in Hibernate
Simple One to One using assigned identifiers (meaning you hae to set the id yourself) http://www.xylax.net/hibernate/onetoone.html
Using Formula’s in hibernate mappings and some other neat tricks round computed fields http://www.onjava.com/lpt/a/6092
Hibernates Own Reference Documentation
http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#mapping-declaration-onetoone
… Chapter 7 on associations gives some examples. http://www.hibernate.org/hib_docs/reference/en/html/associations.html
Quick guide to router config
>enable (en) go from user to privelaged mode
#configure terminal (conf t) Enter configuration mode
(config)# hostname YourCustomName Put a hostname on the router
(config)# enable secret pass Enable a password on the router when entering privelage mode. Stored in MD5
(config)# enable password pass Seldom used password enablement as above but stored in plain text.
(config)# line vty 0 4 Configure 5 virtual telephony ports (telnet) ports
(config-line)# password cisco
(config-line)# login Set password for telnet. Forgetting the login command following the password will not make the command go through
(config)#line con 0 Enter the console config
(config-line)# password cisco Set the password for the console
(config-line)# login
#show run Show running config (Show running-config)
#copy run start Copy ram config to NVram
#show start Show start
>show flash Show config in flash
(config)# inteface fastethernet 0/0 or int fa0/0 Enter interface config mode
(config-if)# ip address 192.168.10.1 255.255.255.0 Set the ip and subnet for that address
(config-if)# no shutdown Bring the interface up (shutdown would take it down)
(config-if)# description Your friendly description of the router
#show protocols Show the state of the router interfaces
#show ip interface brief Checks the state of the router interfaces
When using the show commands, use space to page down, enter to line down and any other key to exit the more prompt
#erase start Erase nvram; Refresh the router to the default state
#reload Restart the router, using config from new state
Trace Route
Send pings to successive routers, along the path to the destination.
Sends 3 packets to each destination
Netstat flags
-a -e -n -s (statistics) -rn (routing table)
H:>netstat -rn
Route Table
===========================================================================
Interface List
0x1 ……………………… MS TCP Loopback interface
0x2 …00 13 72 7e e0 8d …… Broadcom NetXtreme Gigabit Ethernet #3 – Eacfilt
0x3 …44 45 53 54 42 00 …… Nortel IPSECSHM Adapter – Eacfilt Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 131.170.112.254 131.170.112.73 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
131.170.112.0 255.255.255.0 131.170.112.73 131.170.112.73 20
131.170.112.73 255.255.255.255 127.0.0.1 127.0.0.1 20
131.170.255.255 255.255.255.255 131.170.112.73 131.170.112.73 20
224.0.0.0 240.0.0.0 131.170.112.73 131.170.112.73 20
255.255.255.255 255.255.255.255 131.170.112.73 3 1
255.255.255.255 255.255.255.255 131.170.112.73 131.170.112.73 1
Default Gateway: 131.170.112.254
===========================================================================
Persistent Routes:
None
H:>netstat -a
Active Connections
Proto Local Address Foreign Address State
TCP b05108003-14:82 b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:epmap b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:microsoft-ds b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:1761 b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:2030 b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:1033 b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:netbios-ssn b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:427 b05108003-14.set.rmit.edu.au:0 LISTENING
TCP b05108003-14:1029 SET-GN-WITTIG.set.rmit.edu.au:524 ESTABLISHED
TCP b05108003-14:1031 SET-GN-WITTIG.set.rmit.edu.au:524 ESTABLISHED
TCP b05108003-14:1098 SET-GN-HERTZ.set.rmit.edu.au:524 ESTABLISHED
TCP b05108003-14:1103 SET-GN-HERTZ.set.rmit.edu.au:524 ESTABLISHED
TCP b05108003-14:1107 set-gn-marconi-usrc2.set.rmit.edu.au:524 ESTABL
TCP b05108003-14:1108 set-gn-marconi-sharec1.set.rmit.edu.au:524 ESTA
TCP b05108003-14:1123 SET-WN-PROXY14.set.rmit.edu.au:524 ESTABLISHED
TCP b05108003-14:1233 wasted.pacific.net.au:ftp CLOSE_WAIT
TCP b05108003-14:3017 b05108003-14.set.rmit.edu.au:0 LISTENING
UDP b05108003-14:82 *:*
UDP b05108003-14:83 *:*
UDP b05108003-14:snmp *:*
UDP b05108003-14:microsoft-ds *:*
UDP b05108003-14:1026 *:*
UDP b05108003-14:1027 *:*
UDP b05108003-14:1034 *:*
UDP b05108003-14:ms-sql-m *:*
UDP b05108003-14:1761 *:*
UDP b05108003-14:3024 *:*
UDP b05108003-14:ntp *:*
UDP b05108003-14:1134 *:*
UDP b05108003-14:1240 *:*
UDP b05108003-14:ntp *:*
UDP b05108003-14:netbios-ns *:*
UDP b05108003-14:netbios-dgm *:*
UDP b05108003-14:427 *:*
UDP b05108003-14:1025 *:*
H:>netstat -e
Interface Statistics
Received Sent
Bytes 142159154 84633058
Unicast packets 185498 148531
Non-unicast packets 11683 71
Discards 0 0
Errors 0 0
Unknown protocols 12946
H:>netstat -s
IPv4 Statistics
Packets Received = 188221
Received Header Errors = 0
Received Address Errors = 8
Datagrams Forwarded = 0
Unknown Protocols Received = 0
Received Packets Discarded = 47
Received Packets Delivered = 188166
Output Requests = 148664
Routing Discards = 0
Discarded Output Packets = 0
Output Packet No Route = 0
Reassembly Required = 0
Reassembly Successful = 0
Reassembly Failures = 0
Datagrams Successfully Fragmented = 0
Datagrams Failing Fragmentation = 0
Fragments Created = 0
ICMPv4 Statistics
Received Sent
Messages 46 97
Errors 0 0
Destination Unreachable 0 10
Time Exceeded 0 0
Parameter Problems 0 0
Source Quenches 0 0
Redirects 0 0
Echos 8 79
Echo Replies 34 8
Timestamps 0 0
Timestamp Replies 0 0
Address Masks 0 0
Address Mask Replies 0 0
TCP Statistics for IPv4
Active Opens = 220
Passive Opens = 0
Failed Connection Attempts = 0
Reset Connections = 51
Current Connections = 10
Segments Received = 177836
Segments Sent = 138744
Segments Retransmitted = 2
UDP Statistics for IPv4
Datagrams Received = 10125
No Ports = 321
Receive Errors = 31
Datagrams Sent = 9820
H:>netstat -n
Active Connections
Proto Local Address Foreign Address State
TCP 131.170.112.73:1029 131.170.136.3:524 ESTABLISHED
TCP 131.170.112.73:1031 131.170.136.3:524 ESTABLISHED
TCP 131.170.112.73:1098 131.170.136.5:524 ESTABLISHED
TCP 131.170.112.73:1103 131.170.136.5:524 ESTABLISHED
TCP 131.170.112.73:1107 131.170.136.32:524 ESTABLISHED
TCP 131.170.112.73:1108 131.170.136.33:524 ESTABLISHED
TCP 131.170.112.73:1123 131.170.136.6:524 ESTABLISHED
TCP 131.170.112.73:1233 61.8.0.55:21 CLOSE_WAIT
Display DNS
Havent come across this one before.
H:>ipconfig /displaydns
Windows IP Configuration
ns1.cisco.com
—————————————-
Record Name . . . . . : ns1.cisco.com
Record Type . . . . . : 1
Time To Live . . . . : 23138
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 128.107.241.185
1.0.0.127.in-addr.arpa
—————————————-
Record Name . . . . . : 1.0.0.127.in-addr.arpa.
Record Type . . . . . : 12
Time To Live . . . . : 594069
Data Length . . . . . : 4
Section . . . . . . . : Answer
PTR Record . . . . . : localhost
ibm.com
—————————————-
Record Name . . . . . : ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 129.42.17.103
Record Name . . . . . : ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 129.42.18.103
Record Name . . . . . : ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 129.42.16.103
Record Name . . . . . : ns.austin.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Additional
A (Host) Record . . . : 192.35.232.34
Record Name . . . . . : ns.watson.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Additional
A (Host) Record . . . : 129.34.20.80
Record Name . . . . . : ns.almaden.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Additional
A (Host) Record . . . : 198.4.83.35
Record Name . . . . . : internet-server.zurich.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Additional
A (Host) Record . . . : 195.176.20.204
ns.watson.ibm.com
—————————————-
Record Name . . . . . : ns.watson.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 129.34.20.80
ns.austin.ibm.com
—————————————-
Record Name . . . . . : ns.austin.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 192.35.232.34
cisco.com
—————————————-
Record Name . . . . . : cisco.com
Record Type . . . . . : 1
Time To Live . . . . : 23138
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 198.133.219.25
Record Name . . . . . : ns1.cisco.com
Record Type . . . . . : 1
Time To Live . . . . : 23138
Data Length . . . . . : 4
Section . . . . . . . : Additional
A (Host) Record . . . : 128.107.241.185
Record Name . . . . . : ns2.cisco.com
Record Type . . . . . : 1
Time To Live . . . . : 23138
Data Length . . . . . : 4
Section . . . . . . . : Additional
A (Host) Record . . . : 64.102.255.44
ns2.cisco.com
—————————————-
Record Name . . . . . : ns2.cisco.com
Record Type . . . . . : 1
Time To Live . . . . : 23138
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 64.102.255.44
ns.almaden.ibm.com
—————————————-
Record Name . . . . . : ns.almaden.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 198.4.83.35
localhost
—————————————-
Record Name . . . . . : localhost
Record Type . . . . . : 1
Time To Live . . . . : 594069
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 127.0.0.1
internet-server.zurich.ibm.com
—————————————-
Record Name . . . . . : internet-server.zurich.ibm.com
Record Type . . . . . : 1
Time To Live . . . . : 8473
Data Length . . . . . : 4
Section . . . . . . . : Answer
A (Host) Record . . . : 195.176.20.204
DTE / DCE Connection rule
DTE DCE
Router Hub
PC Switch
Vertically means straight through
Horizontally means crossover
Programmers Food Pyramid
JSR 220: EJB 3.0
Sometimes the best resources are straight from the horses mouth. The excellent resources I found are located on the Java Community Process site.
The EJB 3 specifications for the core and persistence as well as a simplified spec can be found here. Download page. Click on the first download link to get access.