在Groovy中分配對象屬性的速記方式？

Question

我創建一個使用這個慣例Groovy對象...

Item item1 = new Item(name: "foo", weight: "150") 

...有操縱性對象的速記慣例？這樣的事情...

item1(name: "hello", weight: "175") //this does not work, btw ;-) 

...而不是...

item1.name = "hello" 
item1.weight = "175" 

Answer 1

你有with方法，as described by the great Mr Haki

item1.with{ 
    name = "hello" 
    weight = "175" 
} 

Answer 2

是的，你可以像下面這樣做：

item1.metaClass.setProperties(item1, [name: "hello", weight: "175"]) 

Answer 3

我更喜歡item1.with如果我有混凝土變量發生變化

item1.with { 
    name = "lalal" 
    weight = 86 
    high = 100 
} 

我更喜歡InvokerHelper.setProperties當我有特性的圖（可以是任何大小）

@ToString 
class Item{ 
    def name 
    def weight 
} 
Item item1 = new Item(name: "foo", weight: "150") 

println "before: $item1" 
use(InvokerHelper) { 
    item1.setProperties weight: 22, name: "abc" 
} 
println "after : $item1" 

輸出：

before: Item(foo, 150) 
after : Item(abc, 22)