Reading Notes for Chapter 10, Head First Servlets and JSP

489	When even JSTL is not enough...	516	SkipPageException stops only the page that directly invoked the tag	542	Getting info from child to parent
490	Objectives	517	There are no Dumb Questions (about SimpleTag handlers)	543	Menu and MenuItem tag handlers
491	Includes and imports can be messy	518	Simple Tag bullet points	544	Getting an arbitrary ancestor
492	Tag files: like include, only better	519	You still have to know about Classic tag handlers	545	Exercise: Key differences between Simple and Classic tags
493	But how do you send it parameters?	520	Tag handler API	546	Exercise Answers (to p. 545)
494	To a Tag File, you don't send request parameters, you send tag attributes	521	A very small Classic tag handler	547	Using the PageContext API for tag handlers
495	Aren't tag attributes declared in the TLD?	522	A Classic tag handler with TWO methods	548	Sharpen your pencil (Memorizing Tag Files) ANSWERS (from p. 501)
496	Tag Files use the attribute directive	523	When a tag has a body: comparing Simple vs. Classic	549	Coffee Cram Q1 Q2
497	When an attribute value is really big	524	But how do you loop over the body?	550	Coffee Cram Q3 Q4
498	Declaring body-content for a Tag File	525	Classic tags have a difference lifecycle	551	Coffee Cram Q6 Q6
499	Where the Container looks for Tag files	526	The Classic lifecycle depends on return values	552	Coffee Cram Q7 Q8
500	There are no dumb questions (about Tag files)	527	IterationTag lets you repeat the body	553	Coffee Cram Q9 Q10
501	Sharpen your pencil (Memorizing Tag Files)	528	Be the Container (tag handler and JSP tag invocation)	554	Coffee Cram Q11 Q12
502	When you need more than Tag Files... Sometimes you need Java	529	Default return values from TagSupport	555	Coffee Cram Q13 Q14
503	Making a Simple tag handler	530	Be the Container Answer (p. 528)	556	Coffee Cram Q15 Q16
504	A Simple tag with a body	531a	There are no dumb questions (about doStartTag())	557	Coffee Cram Q17 Q18
505	The Simple tag API	531b	The Container can reuse Classic tag handlers!	558	Coffee Cram Q19 Q20 Q21
506	The life of a Simple tag handler	532	But what if you DO need access to the body contents?	559	Coffee Cram Answers Q1 Q2
507	Be the Container: TLD/JSP pairs	533	With BodyTag, you get two new methods	560	Coffee Cram Answers Q3 Q4
508	Be the Container Answers (p. 507)	534	With BodyTag, you can buffer the body	561	Coffee Cram Answers Q6 Q6
509	What if the tag body uses an expression?	535	Exercise: Lifecycle methods for Classic tag methods	562	Coffee Cram Answers Q7 Q8
510	A tag with dynamic row data: iterating the body	536	Exercise Answers (from p. 535)	563	Coffee Cram Answers Q9 Q10
511	A Simple tag with an attribute	537	What if you have tags that work together?	564	Coffee Cram Answers Q11 Q12
512	What exactly IS a JspFragment?	538	A Tag can call its Parent Tag	565	Coffee Cram Answers Q13 Q14
513	SkipPageException: stops processing the page	539	Find out just how deep the nesting goes...	566	Coffee Cram Answers Q15 Q16
514	SkipPageException shows everything up to the point of the exception	540	Simple tags can have Classic parents	567	Coffee Cram Answers Q17 Q18
515	But wht happens when the tag is invoked from an included page?	541	You can walk up, but you can't walk down...	568	Coffee Cram Answers Q19 Q20 Q21

p489 When even JSTL is not enough...

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p490 Objectives

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p491 Includes and imports can be messy

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p492 Tag files: like include, only better

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p493 But how do you send it parameters?

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p494 To a Tag File, you don't send request parameters, you send tag attributes

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p495 Aren't tag attributes declared in the TLD?

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p496 Tag Files use the attribute directive

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p497 When an attribute value is really big

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p498 Declaring body-content for a Tag File

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p499 Where the Container looks for Tag files

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p500 There are no dumb questions (about Tag files)

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p501 Sharpen your pencil (Memorizing Tag Files)

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p502 When you need more than Tag Files... Sometimes you need Java

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p503 Making a Simple tag handler

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p504 A Simple tag with a body

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p505 The Simple tag API

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p506 The life of a Simple tag handler

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p507 Be the Container: TLD/JSP pairs

Check the unconfirmed errata for this page!

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p508 Be the Container Answers (p. 507)

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p509 What if the tag body uses an expression?

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p510 A tag with dynamic row data: iterating the body

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p511 A Simple tag with an attribute

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p512 What exactly IS a JspFragment?

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p513 SkipPageException: stops processing the page

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p514 SkipPageException shows everything up to the point of the exception

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p515 But wht happens when the tag is invoked from an included page?

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p516 SkipPageException stops only the page that directly invoked the tag

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p517 There are no Dumb Questions (about SimpleTag handlers)

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p518 Simple Tag bullet points

@@@

p519 You still have to know about Classic tag handlers

@@@

p520 Tag handler API

@@@

p521 A very small Classic tag handler

@@@

p522 A Classic tag handler with TWO methods

@@@

p523 When a tag has a body: comparing Simple vs. Classic

@@@

p524 But how do you loop over the body?

@@@

p525 Classic tags have a difference lifecycle

@@@

p526 The Classic lifecycle depends on return values

@@@

p527 IterationTag lets you repeat the body

@@@

p528 Be the Container (tag handler and JSP tag invocation)

@@@

p529 Default return values from TagSupport

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p530 Be the Container Answer (p. 528)

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p531a There are no dumb questions (about doStartTag())

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p531b The Container can reuse Classic tag handlers!

@@@

p532 But what if you DO need access to the body contents?

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p533 With BodyTag, you get two new methods

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p534 With BodyTag, you can buffer the body

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p535 Exercise: Lifecycle methods for Classic tag methods

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p536 Exercise Answers (from p. 535)

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p537 What if you have tags that work together?

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p538 A Tag can call its Parent Tag

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p539 Find out just how deep the nesting goes...

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p540 Simple tags can have Classic parents

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p541 You can walk up, but you can't walk down...

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p542 Getting info from child to parent

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p543 Menu and MenuItem tag handlers

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p544 Getting an arbitrary ancestor

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p545 Exercise: Key differences between Simple and Classic tags

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p546 Exercise Answers (to p. 545)

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p547 Using the PageContext API for tag handlers

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p548 Sharpen your pencil (Memorizing Tag Files) ANSWERS (from p. 501)

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p549 Coffee Cram Q1 Q2

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p550 Coffee Cram Q3 Q4

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p551 Coffee Cram Q6 Q6

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p552 Coffee Cram Q7 Q8

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p553 Coffee Cram Q9 Q10

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p554 Coffee Cram Q11 Q12

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p555 Coffee Cram Q13 Q14

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p556 Coffee Cram Q15 Q16

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p557 Coffee Cram Q17 Q18

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p558 Coffee Cram Q19 Q20 Q21

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p559 Coffee Cram Answers Q1 Q2

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p560 Coffee Cram Answers Q3 Q4

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p561 Coffee Cram Answers Q6 Q6

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p562 Coffee Cram Answers Q7 Q8

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p563 Coffee Cram Answers Q9 Q10

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p564 Coffee Cram Answers Q11 Q12

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p565 Coffee Cram Answers Q13 Q14