By Bashar Abdul-Jawad
Groovy and Grails Recipes is decided to be first booklet to give sensible, real-life, operating examples of ways to accomplish universal programming initiatives utilizing the Groovy language and Grails framework, for Java and internet developers.. The e-book may have a cookbook type to it and may specialise in code snippets instead of theoretical causes. will probably be the 1st ebook to hide Grails model 1.0 and Groovy 1.5. Groovy and Grails Recipes is the busy builders’ advisor for constructing functions in Groovy and Grails. instead of dull the person with theoretical wisdom of “yet one other language/framework” it is going to delve instantly into fixing real-life difficulties in Groovy and Grails utilizing effortless to appreciate, good defined code snippets. through the use of studying by means of instance, clients may be in a position to choose up on Groovy and Grails speedy and use the publication as an important reference whilst constructing functions.
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Additional resources for Groovy and Grails Recipes (Recipes: a Problem-Solution Approach)
Using GroovyScriptEngine CnkkruOdahh is useful when evaluating stand-alone scripts or expressions, but if you have multiple scripts that depend on each other, you are better off using CnkkruO_nelpAjceja. CnkkruO_nelpAjceja loads Groovy scripts from a location you specify (file system, URL, database, and so forth) and reloads those scripts anytime they change. Like CnkkruOdahh, it enables you to pass in parameters and return values from your scripts. 6XpilXOeilhaO_nelp*cnkkru: ++OeilhaO_nelp*cnkkru lnejphjSah_kiapk h]jcq]ca napqnjPdaAj` Listing 2-20 shows how to execute the script by using CnkkruO_nelpAjceja to pass in the required parameter and return a value.
Opnejc>qeh`ans are not thread-safe and therefore perform faster than Opnejc>qbbans. 99Opnejc>qbbano]naiqp]^ha As you can see, the GDK adds plenty of useful methods to f]r]*h]jc*Opnejc, f]r]* h]jc*Opnejc>qbban, and f]r]*h]jc*Opnejc>qeh`an. The preceding examples cover only a subset of the available methods. I encourage you to check the API of Opnejc at dppl6++ cnkkru*_k`ad]qo*knc+cnkkru)f`g+f]r]+h]jc+Opnejc*dpih, Opnejc>qbban at dppl6++cnkkru* _k`ad]qo*knc+cnkkru)f`g+f]r]+h]jc+Opnejc>qbban*dpih, and Opnejc>qeh`an at dppl6++ cnkkru*_k`ad]qo*knc+cnkkru)f`g+f]r]+h]jc+Opnejc>qeh`an*dpih.
C H A P T E R 2 N F R O M JA V A T O G R O O V Y Listing 2-2. GroovyBeans _h]ooLanokjw OpnejcbenopJ]ia Opnejch]opJ]ia `abcapJ]ia$%w benopJ]ia'##'h]opJ]ia y op]pe_rke`i]ej$]nco%w `ablanokj9jasLanokj$% lanokj*benopJ]ia9#>]od]n# lanokj*h]opJ]ia9#=^`qh# ]ooanplanokj*benopJ]ia99#>]od]n# ]ooanplanokj*j]ia99#>]od]n=^`qh# y y Access Modifiers In Java a class member that has no access modifier assigned to it will have a `ab]qhp access, which means it can be accessed only from the package it’s declared in.