CODEWITHSUNDEEP
javagrailsgroovysoapui
droidnoob
droidnoob

Reputation: 335

Calling methods between groovy scripts with correct parameters

I just started learning about groovy and trying to transpose my java code to groovy scripts. Usually java allows you have a class with only methods that you can call from other classes. I wanted to translate that to groovy. I have in one file - lets call it File1- a method like this:

def retrieveData(String name){  
// do something
}

and in the second file, File2, I call File1 like this:

def file1Class = this.class.classLoader.parseClass(new File("../File1.groovy"))

and then try to call the method in File1 like this:

def data = file1Class.retrieveData("String")

but it keeps giving me this error - MissingMethodException:

groovy.lang.MissingMethodException: No signature of method: static File1.retrieveData() is applicable for argument types: (java.lang.String) values: [String] Possible solutions: retrieveData(java.lang.String)

so it does recognize that I am sending in the correct number of parameters and even the correct object, but it isn't running the method as it should? Is there something I am missing? I tried to remove the object definition from the method - in other words - like this:

def retrieveData(name){  
// do something
}

but that didn't work either. I am clueless about what the next step would be. Can anyone please help push me in the right direction? I would greatly appreciate it.

Upvotes: 3

Views: 3918

Answers (1)

Nathan
Nathan

Reputation: 3200

See the answer provided in this StackOverflow reponse.

Use the GroovyScriptEngine class. What does the GroovyScriptEngine do? From the docs:

Specific script engine able to reload modified scripts as well as dealing properly with dependent scripts.

See the example below. 

def script = new GroovyScriptEngine( '.' ).with {
  loadScriptByName( '..\File1.groovy' )
} 
this.metaClass.mixin script

retrieveData()

Note how we use the loadScriptByNamemethod to

Get the class of the scriptName in question, so that you can instantiate Groovy objects with caching and reloading.

This will allow you to access Groovy objects from files however you please.

Upvotes: 0

Related Questions