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228Chapter 9Ant: An IntroductionThe rmic task. Remote Method Invocation is a distributed computingtechnology (Section 5.8). RMI requires the generation of server and stub classesthat provide the networking support for an RMI-enabled class. This is normallydone by the rmic compiler, and this is one of the common reasons the Javaprogrammers turn to build automation tools. The rmic tag allows ant to buildRMI classes.9.4.2.5 Other TagsSo far we have ignored a major component of ant. In order to introduce it, weneed to give you a (painfully) high-level view of how ant works “underthe hood.”Task tags actually map directly to Java classes that implement the tasks.Each task class is an instance of the Task class (in other words, it is a Java classthat either directly or indirectly extends the Task class). This is how you canwrite your own tasks—download the ant source code and write your classesthat extend the Task class.Tasks are not, however, the only tags that map to Java classes. There isanother category of tags that do so. They are called datatypes. These are classesthat directly or indirectly extend the ant DataType class.Generally speaking, a task may require zero to many datatypes to specifythe data with which the task works. Some such tags include the manifest tagused in our sample build.xml file discussed later in this chapter.We’ll mention a couple of the most frequently used datatype tags here andleave looking up the details as an exercise for you.The PatternSet, Include, and Exclude datatypes. As you may havenoticed, the most common tags we have covered allow you to specify the filesto be processed using the tag’s attributes. Usually, you nominate a base directoryand let the task tag process everything in that directory.There are times, however, when you need finer grained control than that.For example, you might wish to exclude all Java classes whose names end in“Test” (Example 9.3).Other datatypes. There are many other datatypes used for various purposes.One of them, FilterSet, is able to modify files before they are copied ormoved. This can be useful, for example, to put build information into a sourcefile for an About dialog.
9.4 A Sample Ant Buildfile229Example 9.3 Using the PatternSet datatypeIn general, datatypes give you more sophisticated control than do the attributesof a task. Take a look at the Ant User’s Manual 10 for full details on ant.9.4.3 A Real, Live BuildfileLet’s take it to the next level and examine a real working buildfile.9.4.3.1 Project OrganizationAll but the simplest of projects will require multiple classes. Some will requirelibraries, multiple programs, binary deployment, Web deployment, enterprisedeployment, and so on. A project will be most successful if you plan out whatgoes where in advance. We’re going to present a series of suggestions for howto organize the files involved in developing, building, and deploying a Javaproject with ant. By no means is this the only way it might be done, but it hasworked well for us.9.4.3.2 The build.xml File for PaybackExample 9.4 is the actual Ant buildfile for the Payback program in our sourcecode examples. These examples are available on the book’s Web site. 1110. http://ant.apache.org/manual/11. http://www.javalinuxbook.com/
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Java Application
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Java Application
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To my mother, for her love of words
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viiiContents1.41.51.6Chapter 22.12.
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xContents5.65.75.85.95.105.115.125.
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xiiContentsChapter 99.19.29.39.49.5
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xivContentsChapter 1313.113.213.313
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xviContentsChapter 1717.117.217.317
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xviiiContents20.620.720.820.920.102
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PrefaceJAVA AND LINUXWhy another bo
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PrefacexxiiiFREE SOFTWARE AND JAVAG
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Prefacexxvand Tyrrell Albaugh, who
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xxviiiIntroductionIf you are an exp
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xxxIntroductionThe Linux Newbie Pat
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Part IGetting Started
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4Chapter 1An Embarrassment of Riche
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10Chapter 1An Embarrassment of Rich
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Chapter 2An Embarrassment of Riches
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2.2 Eye to Eye with vi35of their co
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2.2 Eye to Eye with vi37• L (“l
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2.2 Eye to Eye with vi39In both cas
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2.2 Eye to Eye with vi41• :7,.w!
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2.2 Eye to Eye with vi431,$s/Tryout
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2.3 Editors Galore45affected by thi
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2.3 Editors Galore47has a huge lear
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2.6 Resources49• fte is an editor
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52Chapter 3An Experienced Programme
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100Chapter 4Where Am I? Execution C
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116Chapter 5The Sun Microsystems Ja
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168Chapter 6The IBM Developer Kit f
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Page 247 and 248: Chapter 9Ant:An IntroductionAnt 1 i
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Chapter 12Analysis and Design:Seeki
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12.4 Finding the Objects281Accounta
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12.5 Finding the Methods and Attrib
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12.6 Essential and Nonessential285
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12.7 Analysis Paralysis287• Class
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12.12 Resources28912.9CORE CLASSESS
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12.12 Resources291if (dbConn != nul
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12.13 Exercises293Example 12.2 The
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296Chapter 13JUnit: Automating Unit
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Chapter 14Storing the DataIn this c
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14.5 Oracle, PostgreSQL, MySQL31714
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14.7 Beyond the Basics319files, and
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14.7 Beyond the Basics321Hibernate
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14.9 Setting Up PostgreSQL for Budg
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14.10 Review32514.9.4 Straight JDBC
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Chapter 15Accessing the Data:An Int
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15.3 Making Connections329These thr
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15.3 Making Connections331Example 1
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15.4 Querying Data333// queryString
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15.5 Getting Results335TIPThe case
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15.9 Resources337We haven’t cover
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Part IIIDevelopingGraphical User In
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342Chapter 16Getting in the Swing o
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378Chapter 17Other Ways: Alternativ
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Part IVDevelopingWeb Interfaces
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404Chapter 18Servlets: Java Pressed
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19.5 Review439into JSP files. The m
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444Chapter 20Open Source Web <stron
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494Chapter 22Building an EJBclasses
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496Chapter 22Building an EJBwhich,
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498Chapter 22Building an EJBExample
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500Chapter 22Building an EJBExample
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502Chapter 22Building an EJBIf you
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Chapter 23Deploying EJBsIn this cha
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23.2 Lend Me Your EAR: Enterprise P
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23.3 Deploying the EAR515automatic
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23.8 Resources519Ant and CVS and ho
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522Chapter 24Parting ShotsThe three
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524Chapter 24Parting ShotsPrentice
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526Appendix AASCII ChartInt Oct Hex
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528Appendix BA Java Swing GUI for B
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Appendix CGNUGeneral Public License
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C.2 Terms and Conditions for Copyin
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C.2 Terms and Conditions for Copyin
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C.3 NO WARRANTY545of this License,
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C.5 How to Apply These Terms to You
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550Index$ (dollar)in format fields,
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552Indexbreak statement, 67, 74-75b
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554IndexCVS_RSH environment variabl
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556IndexFfail(), 307false constant,
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558IndexIBM, 236, 377, 518Common Pu
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560IndexJNDI (Java Naming and Direc
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562IndexNetBeans (continued)running
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564IndexScrollBar class, 385search
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