MetaProgramming Intercept Cache Invoke Patternin Groovy Scripting groovy training telugu 47

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//InterceptCacheInvoke.groovy

class Developer{

List languages =[]

def methodMissing(String name, args){

println "${name}() method was called..."

if(name.startsWith('write')){

String language = name.split("write")[1]

if(languages.contains(language)){

def impl ={Object [] theArgs ->

"I like to write code in $language"

}

getMetaClass()."$name"=impl

return impl(args)

}

}

}

}

Developer dan =new Developer()

dan.languages << "Groovy"

dan.languages << "Java"

println dan.metaClass.method.size()

dan.writeGroovy()

dan.writeGroovy()

dan.writeGroovy()

println dan.metaClass.method.size()

dan.writeJava()

dan.writeJava()

dan.writeJava()

println dan.metaClass.method.size()