Manning SCBCD Exam Study Kit

SCBCD Exam Study Kit Java Business Component Developer Certification for EJB Paul Sanghera 2005 \| 488 pages ISBN: 1932394400
	$25.00	PDF ebook
	$49.95	Softbound print book

Index

A

abstract

class 154–155

methods 159–160, 220–222, 229

persistence schema 202, 213–214, 229–235

schema and query syntax 231
access methods 217
accessing an entity bean concurrently 145
ACID test for transactions 269
<acknowledge-mode> 250
administrator role 14
afterBegin() method 284–285
afterCompletion() method 284–285
application assembler

EJB 29, 42–43, 46–47

J2EE 13

questions 52, 362
application client 9
application deployer 13
application exceptions

class 86, 93, 116, 170–171

EJB 295–298

home interface 60

message driven bean 254
applications

J2EE 6–15
<assembly-descriptor> 282, 313
asynchronous communication 25, 27, 47, 248
atomicity 20, 153, 269
attributes 274–284
authentication 11, 20, 311
authorization 11, 44, 311–312, 314–315
AUTO-ACKNOWLEDGE 250

B

bean construction 166
bean deployer 28, 32, 130
bean managed persistence

comparison with CMP 154–156

definition 128

find methods 134, 297

questions on 178, 378
bean managed transaction demarcation (BMT)

container managed and 268, 305

EJB transactions 270–274

EJBContext methods 94, 164–165, 279

entity beans 194

message-driven beans 249–251, 257

questions 264, 286–290, 308, 393, 395, 398

session beans 98, 113–114, 117, 284
bean provider

bean class 175

client 21, 66

EJB security 318–326

ejb-jar file 46–47

entity beans 130–133, 139, 162–163, 181–182

EntityContext interface 166

external resources 39–41

interfaces 59, 61–62, 71, 142

methods 111, 151, 157, 169, 186–188

programming restrictions 37

questions 50–52, 78, 102, 148, 361–364

session beans 80–82, 84–87, 105–106

virtual persistent fields 159–160
bean-managed transactions demarcation 272
beforeCompletion() method 284–285
begin() method in the UserTransaction interface 273–274
BETWEEN 238
BMP entity bean 154
business logic

EJB architecture 21–25, 27–28, 30–33

influence on EJB security 323–324

J2EE architecture 4–5, 7–10
business methods

calling transaction related methods 279–281

EJB security in 312–313, 320–321

entity beans 155–161, 184–190, 192–194, 196–197

home business methods 137–138

MDB class 251–252

programming for CMP and CMR 217–218

questions on 146–148, 368–369, 371–374, 392–393

session beans 63–67, 72–74, 85–86, 116–118
business tier

EJB architecture 17, 21, 23, 47

EJB container 7

EJB tier in J2EE 4–5, 15

services 9–10

C

callback methods

bean's lifecycle 99

entity bean 154–155, 157

message driven bean 259

prefix ejb 67, 116, 193

session bean 87

transaction related 284
callbacks

ejbActivate() in entity bean 186
cascade delete 215–216, 221, 226, 387
cast 49
characteristics of an entity bean 131
checked exceptions 294
client tier 5, 9–10, 15
client view

definition 57–58

entity beans 125–150

exceptions 303

local interface 70

locating home interface 73

message driven beans 247–248, 250–251, 257

remote interface 65

session beans 82
CMP

definition 128

entity beans 154–156, 159–160, 222–223

programming 217–220

questions 177–179
CMP fields

CMR fields 219–220

definition 203

EJB-QL 228–233

get and set methods 211–212, 216–217

questions 243, 386, 390
<cmp-field> 213
CMR 69, 384–386
CMR fields

access methods 220

definition 203, 211

EJB-QL 228–229, 233

methods 216–217

questions 224, 384
<cmr-field> 215
<cmr-field-name> 215
coding the bean class 32
coding the bean interfaces 33
Collection of instances 209
collections in path navigation 234
communicating with the container 189
component interface

entity bean 133–135

example 33–34

questions 78–80, 148–150, 364–366

relationships 222–224

session bean 64–72
component-based architecture 15
concurrent access to a session bean 75
consistency 269
container callbacks methods

bean provider 160

definition 86, 89

EntityBean 157

SessionBean 118

See also callbacks
container managed transaction demarcation

EJB transactions 270–274, 284–290

EJBContext/SessionContext methods 94

EntityContext methods 165

MDB 249–250, 256–257

questions 398–399
container requirements 16, 20
container-managed persistence 154
Container-managed persistent fields 212
container-managed relationship fields 214
container-managed relationships 207
container-managed transaction demarcation 274
<container-transaction> 283
conversational state 58, 81–83, 109
create() method

entity beans 135–136

example 34

MDB 253

questions 78–80, 120–121, 148–149

session beans 60–63, 82, 85, 92–93

session beans and entity beans 135
CreateException

create() method 60, 63

explained 296

local and remote interfaces 72–73
creating an entity bean 168
creation of a stateless session bean 83
CustomerBean 127, 143, 212–216

D

database API 10
database API technologies 10
database to entity mapping 128, 229
declarative security, limitations of 319
defining transaction 268
deletingentity from database 195
deployer 13

EJB role of a 29
deployment descriptor 154
deployment descriptor files 187
<description> 313
<destination-type> 259
disabling methods 319
distributed application 8
distributed architecture 4, 6, 8, 12
distributed environment 4–5, 10–11, 14
distributed transaction manager 270
does not exist state 182
DOM 11
DuplicateKeyException 296, 309, 400
DUPS-OK-ACKNOWLEDGE 250
durable subscription 259
Duraility 269

E

EIS tier 9–10
EJB 2.0 14
EJB 2.0 spec 141
EJB 2.1 14
EJB 3.0 14
EJB components 17
EJB container provider 28, 30
EJB Home object 91
EJB Home stub 91
EJB Object 65, 68, 75, 79–80, 366
EJB QL queries 228
EJB query language 227
EJB references 40–41
EJB role of an 29
EJB roles 16, 31–32, 49
EJB security 310
EJB server provider 28, 30
EJB specifications 18, 29, 48
EJB system exceptions 298
EJB tier 5, 9, 15
EJB transactions 267
ejbActivate()

entity bean 185–186

implementing 111–112

programming 162–163

questions 120–121, 199–200

transaction context 277

usage 87
ejbCreate()

ejbCreate<method> 64, 84

ejbPostCreate() 197

entity bean 168–174

MDB 252–256

method definition 33

questions 102–104, 120–122, 199

session bean 88–93

transaction context 277

usage 87
EJBException 292

explained 298–301

for local client 73

getPrimaryKey() method 72

questions 307–309
ejbFind method 156, 184, 186
EJBHome 59–62, 64–65, 68–72, 76–78, 364
ejbHome method 184
ejb-jar file 13
ejb-jar.xml

descriptor 29, 36, 48

See also deployment
ejbLoad()

called by the container 163

missing from session bean 87, 158

NoSuchEntityException 300

permitted operations 191–192

questions 327, 382
EJBLocalHome 69–72, 77, 83, 99, 141–142, 148
EJBLocalObject 83, 95, 99, 141
EJBMetaData interface 61, 70, 133
EJBObject

definition 18–19

entity beans 137–142, 144–146, 187–192

questions 49–50, 77, 79–80

reference 97

session beans 65–72

used in programming 33–34
ejbPassivate()

entity beans 162–163, 185–186

method definition 33

permitted operations 192–193

questions 120–122, 382–383

session bean 87–89, 108–109, 111–117

transaction context 277

usage 87
ejbPostCreate() 161, 168–169, 197, 296
<ejb-relation> 215
<ejb-relationship-role> 215
<ejb-relationship-role-name> 215
ejbRemove()

MDB 252–256

method definition 33

questions 103, 120, 122, 262–264

transaction context 277

usage 87, 108–109, 252
ejbSelect method 184, 187
ejbStore()

missing from session bean 87

permitted operations 192–193

questions 381–382, 384, 403

usage 158
Enterprise JavaBeans 3
entities in the database 131
entity and entity bean 129
Entity bean and entity bean instance 130
entity bean class 129
entity bean instance 129–130, 184, 195
entity bean lifecycle 182
entity bean persistence 152
entity bean remote home interface 131
entity beans 125, 151, 181

activation 191

client view 125

definition 19, 26

interfaces 164

lifecycle 181

passivation 192
entity beans and database tables 203
Entity, entity bean, and entity bean instance 129
EntityBean interface 152
EntityContext 183, 189
environment entries 40, 49
exception handling 293
exceptions in EJB 295, 305

checked exceptions 294
exceptions tree in Java 293
<exclude-list> 319

F

findByPrimaryKey() 134
finder methods 134–135
FinderException 297
FROM clause 242, 388
functionality of an entity bean 127

G

getByPrimaryKey(Ö) 134
getCallerPrincipal() 95, 320
getEJBHome() 67
getEJBLocalHome() 256–257, 280
getEJBLocalObject() 37, 95, 165
getEJBMetaData() 61, 70, 133, 141
getEJBObject() 93
getHandle() 67
getHomeHandle() 61, 133
getPrimaryKey() 67
getRollbackOnly() 256–257, 271–272, 279, 286
getStatus() 272, 286, 290–291, 395–396
getUserTransaction() 164–165, 194, 271–273, 279
guaranteed services and APIs 45

H

Handle 67, 69–70, 140, 280
home business methods 190
home interface

create and remove methods 62

local, 70

locating the 73

writing a 60
home object 35
HTML 9, 13

I

identifiers and input parameters 235
identifying entity beans 172
IIOP compatible types 63, 69, 76–77, 224, 384
IllegalStateException 97, 100, 279, 304–305
implementing a session bean 84
IN expression in EJB QL 239
InitialContext() 35, 39, 42, 73, 88, 143, 250, 302
interface

EJBLocalHome 69–71, 77, 141–142

EJBLocalObject 69–71, 77, 141–142

EJBObject 67

EntityBean 157

EntityContext 164

MessageDrivenBean 248, 252–253

MessageDrivenContext 256

SessionBean 86
interoperability 6
introducing entity beans 126
introduction to session beans 82
IS EMPTY 238, 240
IS NOT EMPTY 238
isCallerInRole() 257, 320–321, 323
isIdentical() 68–69, 175, 208, 280

J

J2EE 1.3 8, 12, 14
J2EE 1.4 14
J2EE 1.5 14
J2EE and EJB versions 14
J2EE architecture 3–5, 7–8, 12, 17, 39
J2EE implementation 12
J2EE platform 3, 6–8, 10, 12, 14
J2EE reference implementation 14
J2EE server 7–8, 13–14
J2SE 8, 45–46, 49
JAAS 11–12
Java Message Service 45
Java Server Pages. See JSP
JavaBeans and Enterprise JavaBeans 23
JavaMail 12
JAXP (Java API for XML Parsing) 11–12, 45, 51, 361
JDBC API 12
JMS 11–12
JMS (Java Messaging Service) 19, 248
JMS consumer 248
JMS destination 250
JMS message consumer 249
JMS producer 248
JNDI (Java Naming and Directory Interface)

definition 10

EJB 39–45

entity bean 190–195

J2EE 10

JNDI context and session context 96, 166

lookup 73–74, 142–143, 250

questions 51, 53, 200–201
JNDI lookup 131
JSP 4, 9, 12–13, 29, 45
JTA (Java Transaction API) 10, 12, 20, 45

L

lifecycle management 20
LIKE expression in EJB QL 235, 238–240
local home interface 142
local interfaces 69–70, 141

exceptions in 72

writing 72
local transaction manager 270
locating the home interface 143
location transparency 21
lookup. See JNDI lookup

M

mail service 11
managing persistence and relationships 211
many-to-many relationships 210
message listener 250
message service 11
message-driven beans 247

definition 27

MessageDrivenBean interface 248, 251–254, 259, 261–262, 391

MessageDrivenContext interface 247–248, 252–253, 256–257, 261, 272–273

MessageListener interface 251–254, 259, 261–262, 391
<message-driven> 258
<message-driven-destination> 258–259
MessageListener 248, 252–253
method permissions 314
<method> 314
<method-intf> 317
<method-name> 230, 314
<method-param> 283
<method-params> 230, 283
<method-permission> 314
methods

afterBegin() 284–285

afterCompletion() 284–285

beforeCompletion 284–285

begin() 273–274

commit() 273–274

ejbSelect() 200, 382

getCallerPrincipal() 95, 98, 317, 320, 323

getEJBHome() 67, 95, 256–257, 280

getEJBLocalObject() 37, 95, 165

getEJBMetaData() 61, 70, 133, 141

getEJBObject() 37, 95, 165

getHandle() 67, 69, 140, 280

getHomeHandle() 61, 133

getPrimaryKey() 68, 72, 95, 164–166, 299

getStatus() 272, 286, 290–291, 395–396

remove() 59, 62, 68–69, 133, 136–137

rollback() 273, 290–291, 395–396

setMessageDrivenContext() 252, 254, 256, 259

setRollbackOnly() 95, 165, 256–257, 271–272, 285–288

setSessionContext() 33, 87–98, 107, 112, 158

setTransactionTimeout() 272, 290, 395–396
methods from the component interface 156
methods from the home interface 155
missed ejbRemove() calls 115
multiple-field key 173
multiplicity in relationships 203, 210, 215–216, 220–223, 226
Multitier architecture 5

N

naming service 10
navigating to the related bean 234
nested transactions 273, 288
Never attribute in transactions 159, 275–279, 281, 283
newInstance() 89–91, 100, 163, 183–184, 254–255
non-durable subscription 258
NoSuchEntityException 300, 305, 307, 309, 397–400
NoSuchObjectException 68, 115, 299–300, 305
NoSuchObjectLocalException 72, 115, 121, 299–300, 305
NOT BETWEEN 238
NOT IN expression in EJB QL 239
NotSupported attribute 275–281, 286, 288–291, 308

O

object serialization 111
ObjectNotFoundException

Explained 297

finder methods 134, 187

questions 121, 150, 373, 377
one-to-many relationships 208
one-to-one relationships 207
onMessage(Ö) method 249
operators and expressions 237
OrderBackupBean, 205
OrderBean 205
overlap of roles 31
overloaded methods 316
overview of the EJB architecture 18

P

Passivation

definition 109

entity bean 185–187, 191–192

session bean 111, 113
path navigation in EJB QL 233
performance 6
persistence management 20, 45
<persistence-type> 213
persistent data storage 58
persistent fields 152
persistent fields of an entity bean 203
persistent state 154
pool 58, 62–65, 87, 89–90
pooled state 182–184, 186, 196–199, 254–255
portability 6
PortableRemoteObject 35, 42, 74, 143, 302
primary key

entity beans 134, 136–137, 139–140, 165–168, 187–193

questions 199–201, 378

session beans 62, 64, 68, 95
<prim-key-class> 213
<primkey-field> 213
principals and roles 311
programmatic security 311, 318, 320, 323–324
programming restrictions 37
programming security 319
propagating security identity 317
publish/subscribe messaging model 258

Q

Queries 231
query domain 235
query domains and navigation 233
query return types 232
<query> 229
<query-method> 229
Queues in messaging 258

R

ready state 185
reestablishing relationships 210
references to security roles 321
relational database 14, 129
relationship between two entity beans 206
<relationship-role-source> 215
relationships, one to one 207, 210
reliability 25
remote access service 11
remote client 57–59, 65, 69–70, 72–77, 79
remote component interface 65, 138
RemoteException

EJB 295–296, 298–301

entity beans 136–138, 170–171, 194

example 34, 60

interfaces 63–67

questions 102, 104, 121, 307–309

session bean 71–73, 76–79, 116
remove methods 136
remove protocols 221
RemoveException 62, 64–65, 73, 136–137, 297
removing a bean instance 195
removing a session bean instance 114
Required attribute in transactions 275, 277–281, 394–396
RequiresNew attribute in transactions 274–279, 281, 283–284, 288–291, 394–396
re-usability 23
role of EJB QL in persistence 228
<role-link> 322
rollback() 273, 290–291, 396
<run-as> 318
RuntimeException 294–296, 298–299, 303–304, 307, 397

S

SAX (Simple API for XML) 11
scalability 5–6
security 31, 47, 310, 324

bean developers role in 320

concepts 311

declarative 318–320, 323–324

information about the client 191

management 20, 45, 51, 360

programmatic 311, 318, 320, 323–324

roles 313

<security-identity> 213, 317

<security-role> 313

<security-role-ref> 321
SELECT clause in EJB QL 186, 227, 230–236, 238–242, 388
select methods 231
select queries 187
session bean

definition 19, 26, 47, 58, 82

remote home interface 59

SessionBean 32–33, 81–84, 86–90, 158, 184

SessionContext 33, 88–91, 93–97, 107, 111–113

SessionSynchronization 89, 267, 281, 284–286
setEntityContext()

definition 87, 161

questions 178, 378, 382, 403

unsetEntityContext() 184
setSessionContext()

in creation process 90–91

method definition 33

permitted operations 97

questions 120–122

SessionContext 93–94

usage 87
single-field key 173
software components 18, 21, 40, 47
stateful life cycle 106
stateful session bean 26, 49, 58, 62–64, 68

does not exist state 106
stateless session bean 58, 60–65, 68, 76–80
<subscription-durability> 259
Supports attribute in EJB QL 275–279, 281, 289–291, 394–396
synchronizing entity and entity bean 153
synchronous communication 25–27, 47
system exceptions 304

T

to 191, 193
Topic destination 258
transaction attributes

Mandatory 135, 275, 277–278, 281, 283

Never 159, 275–279, 281, 283

NotSupported 275–281, 286, 288–291

Required 275–281, 286, 288–291

RequiresNew 275, 277–281, 286, 288–291

Supports 275–279, 281, 289–291, 394–396
transaction definition 268
transaction demarcation 270
transaction management 20, 51, 360
transaction rollback 191, 269
transaction service 10
TransactionRequiredException 300, 307, 397
TransactionRequiredLocalException 300
TransactionRolledbackException 300, 308, 399
TransactionRolledbackLocalException 300
transactions

ACID test 269

bean managed versus container managed transaction 164

distributed 270

JTA (Java Transaction API) 11–12, 20, 45
<transaction-type> 272
<trans-attribute> 283

U

<unchecked/> 315
unsetEntityContext()

entity bean lifecycle 184–185

method definition 219

usage 158
unspecified transactional context 276–279, 289, 291, 394, 396
<use-caller-identity/> 214, 318
users and groups 312
UserTransaction interface 271
using transaction attributes 279

V

virtual persistent fields 155, 159–160, 162, 178, 187, 379

W

Web client 9
web tier 4–5, 7, 9–10, 15
WHERE clause in EJB QL 227, 231–232, 234–242, 388–389
write once, deploy anywhere 22–23, 28, 31, 37, 48
writing an MDB class 251
writing the deployment descriptor 36

X

XML 6, 11–12
XML processing 11
XSLT 11

DESCRIPTION

There is probably no Java certification more valuable to you than Sun Certified Business Component Developer CX-310-090. To pass you need a readable, no-nonsense book focused like a laser beam on the exam goals. SCBCD Exam Study Kit is that book.

The study kit makes sure you first understand all the concepts you need to know, large and small, and then covers every single exam topic. It provides more than 130 review questions with answers distributed over all chapters and an Exam's Eye View section at the end of each chapter on the important points to remember.

Although SCBCD Exam Study Kit has only one purpose - to help you get certified - you will find yourself returning to it as a reference after passing the exam. A demo on how to install the necessary software, write a simple bean, deploy the bean, and execute it, as well as a free SCBCD exam simulator can be downloaded from the publisher's website.

What's Inside

All exam objectives, carefully explained
Session, Entity, and Message-Driven Beans
Lifecycle of Session and Entity Beans
Transactions, exceptions, and security
EJB query language
Container-managed and bean-managed persistence
Quick Prep Appendix for last-minute cramming

ABOUT THE AUTHOR...

Paul Sanghera, Ph.D., is an SCBCD certified developer. He has taught Java and other technology courses at San Jose State University and has been at the ground floor of several startups. Paul lives in Silicon Valley, California.

Inside the book

Manning Blog

Author Blogs

Author Calendar

Catalog

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Index

DESCRIPTION

What's Inside

ABOUT THE AUTHOR...