Groovy收集（？）变量和值来映射

问题描述：

我正在研究一段依赖于从Java继承的'字段'中的值的Groovy脚本。我需要能够引用这个字段列表（和值）来创建一个可以使用的地图。我正在用这种“常规”方式挣扎。Groovy收集（？）变量和值来映射

我有什么访问（继承）：

dialogPartyASelection_7 = 'Denied' 
dialogPartyBSelection_7 = 'Accepted' 
dialogPartyASelection_6 = 'Denied' 
dialogPartyBSelection_6 = 'Accepted' 
dialogPartyBSelection_5 = 'Denied' 
dialogPartyASelection_5 = 'Accepted' 
dialogPartyBSelection_4 = 'Denied' 
dialogPartyASelection_4 = 'Accepted' 
dialogPartyBSelection_3 = 'Denied' 
dialogPartyASelection_3 = 'Accepted' 
dialogPartyBSelection_2 = 'Denied' 
dialogPartyASelection_2 = 'Accepted' 
dialogPartyBSelection_1 = 'Denied' 
dialogPartyASelection_1 = 'Accepted'

我试图让：

map = [ 
'dialogPartyASelection_7' : 'Denied', 
'dialogPartyBSelection_7' : 'Accepted', 
'dialogPartyASelection_6' : 'Denied', 
'dialogPartyBSelection_6' : 'Accepted', 
'dialogPartyBSelection_5' : 'Denied', 
'dialogPartyASelection_5' : 'Accepted', 
'dialogPartyBSelection_4' : 'Denied', 
'dialogPartyASelection_4' : 'Accepted', 
'dialogPartyBSelection_3' : 'Denied', 
'dialogPartyASelection_3' : 'Accepted', 
'dialogPartyBSelection_2' : 'Denied', 
'dialogPartyASelection_2' : 'Accepted', 
'dialogPartyBSelection_1' : 'Denied', 
'dialogPartyASelection_1' : 'Accepted' ]

我“设置我自己了”，如下所示（这些列表会在整个脚本被重新使用）

def selectionsPartyA = [], selectionsPartyB = [], selections = [], PostSelections = [], PostChildrenSelections = [], 

PostSelections = [ 
        '7', 
        '6', 
        '5', 
        '4', 
        '3', 
        '2', 
        '1' 
       ]     

// selectionsPartyA 
for (post in PostSelections) { 
    selectionsPartyA += "dialogPartyASelection_"+post 
    } 

// selectionsPartyB 
for (post in PostSelections) { 
    selectionsPartyB += "dialogPartyBSelection_"+post 
    } 
selections.addAll(selectionsPartyB) 
selections.addAll(selectionsPartyA)

我已经尝试迭代使用引用列表，但无法引用如预期的'领域'或'价值'。

看起来你只是建立属性名称的名单，可以获取价值，而不是：'getProperty（name）' – Steinar

你想创建一个Map（**我试图得到：**）从一个实例？（实例有dialogParty [A或B] Selection_X？） – koji

我是试图创建一个包含实例字段名称和值的映射。 @Steinar谢谢！这有助于 - 如果你有一个'模式'有效地做到这一点，这将真正帮助我学习:) – lolno

答

是这样的？

class Test { 
    String dialogPartyASelection_7 = 'Denied' 
    String dialogPartyBSelection_7 = 'Accepted' 
    String dialogPartyASelection_6 = 'Denied' 
    String dialogPartyBSelection_6 = 'Accepted' 
    String dialogPartyBSelection_5 = 'Denied' 
    String dialogPartyASelection_5 = 'Accepted' 
    String dialogPartyBSelection_4 = 'Denied' 
    String dialogPartyASelection_4 = 'Accepted' 
    String dialogPartyBSelection_3 = 'Denied' 
    String dialogPartyASelection_3 = 'Accepted' 
    String dialogPartyBSelection_2 = 'Denied' 
    String dialogPartyASelection_2 = 'Accepted' 
    String dialogPartyBSelection_1 = 'Denied' 
    String dialogPartyASelection_1 = 'Accepted' 
} 

def obj = new Test() 
def propMap = obj.properties as Map 
assert propMap['dialogPartyASelection_5'] == 'Accepted'

不完全，我有权访问的信息作为变量（dialogPartyASelection_7 ='拒绝'）我需要能够动态地创建一个地图（地图= [ 'dialogPartyASelection_7'：'Denied'，dialogPartyBSelection_7 ='Accepted'，etc]）与所有这些（这些值可以不同，所以我不能以具有值的地图开始） – lolno

我想什么@koji试图建议使用groovy对象上的'properties'属性来引用父Java对象上存在的所有属性，然后将它强制为一个Map。 – mnd

答

感谢你的帮助，以@ Steinar的建议，我已经能够做到这一点象下面这样：

def selectionsPartyA = [], selectionsPartyB = [], selections = [], PostChildrenSelections = [], 

PostSelections = ['7','6','5','4','3','2','1']     

// selections 
for (post in PostSelections) { 
    selectionsPartyA += "dialogPartyASelection_"+post 
    selectionsPartyB += "dialogPartyBSelection_"+post 
    } 
selections.addAll(selectionsPartyB) 
selections.addAll(selectionsPartyA) 

dialogPartyASelection_7 = 'Denied' 
dialogPartyBSelection_7 = 'Accepted' 
dialogPartyASelection_6 = 'Denied' 
dialogPartyBSelection_6 = 'Accepted' 
dialogPartyBSelection_5 = 'Denied' 
dialogPartyASelection_5 = 'Accepted' 
dialogPartyBSelection_4 = 'Denied' 
dialogPartyASelection_4 = 'Accepted' 
dialogPartyBSelection_3 = 'Denied' 
dialogPartyASelection_3 = 'Accepted' 
dialogPartyBSelection_2 = 'Denied' 
dialogPartyASelection_2 = 'Accepted' 
dialogPartyBSelection_1 = 'Denied' 
dialogPartyASelection_1 = 'Accepted' 

test = [:] 
for (entry in selections){ 
test.put(entry, getProperty(entry)) 
} 
assert test == [dialogPartyBSelection_7:Accepted, dialogPartyBSelection_6:Accepted, dialogPartyBSelection_5:Denied, dialogPartyBSelection_4:Denied, dialogPartyBSelection_3:Denied, dialogPartyBSelection_2:Denied, dialogPartyBSelection_1:Denied, dialogPartyASelection_7:Denied, dialogPartyASelection_6:Denied, dialogPartyASelection_5:Accepted, dialogPartyASelection_4:Accepted, dialogPartyASelection_3:Accepted, dialogPartyASelection_2:Accepted, dialogPartyASelection_1:Accepted]

您的第一个for循环可以用'collectMany'替代，第二个用'collectEntries'替换。也不要使用大写变量，因为groovy语法分析器迟早会将它们与类相混淆。 – cfrick

Groovy收集（？）变量和值来映射

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