How to convert a string to an existing object in Groovy?
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How to convert a string to an existing object in Groovy?
How to call its methods if I only know the literal name of the existing object?
For example:
class Cat
def bark()
println "I am a cat."
class Dog
def bark()
println "I am a dog."
def cat = new Cat()
def dog = new Dog()
def animal = 'cat'
"$animal".bark() // Error
As below, I only know the name of the animal (maybe cat or dog). How do I use this object?
2 Answers
2
if the cat and dog are defined as fields, you can use this:
cat
dog
this
this."$animal".bark()
or
this[ animal ].bark()
def animals = [
cat: new Cat(),
dog: new Dog(),
]
def name = 'cat'
animals[name].bark()
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