Programming Groovy dynamic productivity for the java developer phần 4 doc
Programming Groovy dynamic productivity for the java developer phần 4 doc
... expression you created before to print the quote for these companies as well. So, you iterate over the stocks map—within the closure you have the company as the key and the price as the value.However, ... 5,"moon")println text The output from the previous code is as follows: The cow jumped over the fence The cow jumped over the moon The GString (text) contains the variable what. The expression is ... code (the code within{}) is passed for the parameter block, like the value 10 for the variablen. In Groovy, you can pass as many closures as you want. So, the first, third, and last arguments for...
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Programming Groovy dynamic productivity for the java developer phần 1 docx
... friendly java. lang.Integer chirping dynamic behavior in Groovy, as you’ll learn later in this book. Programming Groovy Dynamic Productivity for the Java Developer Venkat Subrama niam The P ragmatic ... moreperformant. To reap the benefit of the platform and to tackle the inher-ent complexities of your applications, you need another tool—one with a dynamic and metaprogramming capabilities. Java the ... set up the necessary path myself .) While you’rethere, you may also want to grab the documentation for Groovy. If you’re like some of the programmers on the Groovy users mailinglist, the previously...
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Programming Groovy dynamic productivity for the java developer phần 5 docx
... IIUsing Groovy OBJECT EXTENSIONS 144 How does the identity( ) method know to route calls within the closure to the context object? The magic happens because of the dele gate prop-erty of the closure ... This extension is called the Groovy JDK or the GDK.1 The relationship between the JDK and the GDK is shown in Figure8.1, on the following page. The GDK sits ontop of the JDK, so wh en you pass ... This simple Groovy syn-OTHER EXTENSIONS 1 54 Object also supports methods for metaprogramming—to dynamicallyaccess properties and invoke methods. The higher level of abstractionthat these methods...
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Programming Groovy dynamic productivity for the java developer phần 2 potx
... (the traditional Java main( ) method).JAVABEANS 46 Download GroovyForJavaEyes/Car .java / /Java codepublic class Car{private int miles;private int year;public Car(int theYear) { year = theYear; ... print"$it "} The output from the previous code is as follows:0 2 4 6 81. http:/ /groovy. codehaus.org/LoopingJAVABEANS 48 Download GroovyForJavaEyes/GroovyCar2 .groovy def car = new Car()println"Miles: ... true.If the object reference is not-null, then the truth depends on the type of the object. For example, if th e object is a collection (like java. util.ArrayList),then Groovy checks whether the...
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Programming Groovy dynamic productivity for the java developer phần 3 ppsx
... UsingCollection .groovy, and run groovy 9. Thanks to Neal Ford for this Java example.OPTIONAL TYPING 86 4. 5 Optional Typing Groovy is dynamically typed but is also optionally typed; you can adjust the dial ... 1println xint y = 1println ySUPPOR T OF JAVA 5 LANGUAGE FEATURES 64 Let’s look at a Groovy example for these two ways:Download GroovyForJavaEyes/VarArgs .groovy def foo1(int a, int b){println"You ... code, use groovyc (Section 11.2, Running Groovy, on page 173).18. Visithttp:/ /groovy. codehaus.org/Differences+from +Java for a nice list of Groovy- Java differences.DESIGN BY CAPABILITY 82Then Human,...
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Programming Groovy dynamic productivity for the java developer phần 6 pot
... command groovyc -j AJava-Class .java UseJavaClass .groovy -Jsource 1.6. The option -Jsource 1.6 sends the optional option source = 1.6 to the Java compiler. Examine the byte-code generated using javap. ... Using Groovy Classes from Java If the Groovy classes are precompiled, then you can use the .class filesor JARs readily in Java. Java sees no difference between the bytecodefrom Java and Groovy; ... suited for other languages on the JVM than for Groovy. Groovy s ability to jointly compile Java and Groovy lessens the need for something like JSR 223.To call a (not precompiled) script from Java, ...
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Programming Groovy dynamic productivity for the java developer phần 7 pot
... implement the before or after advice (or both), implement your before/after logic,and route the call to the actual method at the appropriate time. Toroute the call, use the MetaMethod for the method ... the arguments for a method you’re lookin g for to these meth-ods. They don’t insist on an array of Class of the arguments like the get-Method( ) method i n Java reflection. Even better, if the ... the meth od is not found, simply route the r equest to the MetaClass,as on line number 26. This gives an opportunity for the method to besynthesized dynamically, as you’ll see in Section 14. 4,...
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Programming Groovy dynamic productivity for the java developer phần 8 potx
... ${car.ampy()}" The output from the previous code is as follows:miles year make Avg. MPY 42 451 2003 Acura 849 0.2 240 31 2003 Chevy 48 06.2 142 33 2006 Honda 7116.5 42 451 2003 Acura 849 0.2Chapter15MOPping ... now.UNIT TESTING JAVA AND GROOVY CODE 239Car.class resides in the classes/com/agiledeveloper directory.Download UnitTestingWithGroovy/src/Car .java // Java codepackage com.agiledeveloper;public ... unit test for this class in Groovy, and you don’t have tocompile the test code to run it. Here are a few positive tests for the Car.These tests are in a file named CarTest .groovy in the test...
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Programming Groovy dynamic productivity for the java developer phần 9 potx
... USING THE GROOVY MOCK LIBRARY 256 for the collaborator and verifies the state. To verif y behavior, you haveto use a mock (see the sidebar on page 243 ), specifically, the MockForclass.Using MockForLet’s ... of stubs. Then we’ll take a look at the advantage mocks offer by using MockFor.Using StubForLet’s use Groovy s StubFor to create stubs for the File class:Download UnitTestingWithGroovy/TestUsingStubFor .groovy Line ... fileMock = new groovy. mock.interceptor.MockFor (java. io.FileWriter)You replaced StubFor with MockFor—that’s the only change. When yourun the test now, it fails, as shown here:.FTime: 0.093There was...
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Programming Groovy dynamic productivity for the java developer phần 10 pptx
... on the bleeding edge. Groovy API Javadoc http:/ /groovy. codehaus.org/apiJavadoc for the Groovy API. The GDK http:/ /groovy. codehaus.org /groovy- jdkList of the methods that are part of the Groovy ... line, 35f, 34 35community forums for, 18compiler, 71, 72defined, 19–20downloading, 30 dynamic languages and, 16–19Exception handling, 43 44 GDK, 40 42 , 142 fgroovyConsole, 33– 34 Hello Groovy example, ... 170f,170–171MockFor, 256–259Mocking, 242 f, 242 – 243 with categories, 248 – 249 with Expando, 251–253with ExpandoMetaClass, 249 –250in Groovy, 244 with Groovy Mock Library, 2 54 259with Map, 253–2 54 by overriding,...
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