Java Element

Java 文件结构

• PackageElement：Java文件的包名
• TypeElement：Java文件的类型Class、Interface、Enum、Annotation等
• VariableElement：Java文件的属性Field
• ExecutableElement：Java文件的方法

方法

• getSimpleName().toString()

  获取当前element的名字（类名、方法名、属性名、当前包名等）

  MainActivity、onCreate、textView、percentrelativelayout
  

• asType().toString()

  获取当前element的实际类型

  android.view.View
  com.stone.percentrelativelayout.MainActivity
  com.stone.percentrelativelayout
  

• getEnclosingElement()

  获取当前element所处闭包的类型

  根据Java文件结构，易知：

  VariableElement -> TypeElement
  TypeElement -> PackageElement
  

• getEnclosedElements()

  获取当前element直接包含的闭包类型集合

  VariableElement -> 0
  TypeElement -> 所有属性、方法、构造器
  MainActivity(),textView,textView2,TAG,onCreate(android.os.Bundle),test(java.lang.String,int,double)
  PackageElement -> 当前包中的所有Java文件
  

• getKind()

  获取当前element对应的类型

  FIELD、CLASS、PACKAGE、METHO等
  

• getModifiers()

  获取修饰符的集合

  [protected]、[private, static, final]
  

• getQualifiedName().toString()

  TypeElement以及PackageElement中方法，用以获取其全限定名字

• getConstantValue()

  VariableElement的方法，用以获取final属性的值，即只有属性的修饰符有final时才能够获取到正确的返回值，非final的都是null;

注: ================================
注: current annotation's value is 2131427423
注: ====begin====
注: element is VariableElement
注: getConstantValue().toString() = null
注: element的getSimpleName() = textView2
注: element的asType() = android.view.View
注: getEnclosedElements() = 
注: element的getKind() = FIELD
注: element的getModifiers() = [protected]
注: ====begin====
注: element is TypeElement
注: getQualifiedName() = com.stone.percentrelativelayout.MainActivity
注: typeParameters.size() = 0
注: getTypeParameters() = 
注: element的getSimpleName() = MainActivity
注: element的asType() = com.stone.percentrelativelayout.MainActivity
注: getEnclosedElements() = MainActivity(),textView,textView2,TAG,onCreate(android.os.Bundle),test(java.lang.String,int,double)
注: element的getKind() = CLASS
注: element的getModifiers() = [public]
注: ====begin====
注: element is PackageElement
注: getQualifiedName() = com.stone.percentrelativelayout
注: element的getSimpleName() = percentrelativelayout
注: element的asType() = com.stone.percentrelativelayout
注: getEnclosedElements() = com.stone.percentrelativelayout.MainActivity$ViewBinder,com.stone.percentrelativelayout.MainActivity,com.stone.percentrelativelayout.PercentRelativeLayout,com.stone.percentrelativelayout.TestConstraintActivity,com.stone.percentrelativelayout.TestConstraintLayout,com.stone.percentrelativelayout.TestRelativeActivity,com.stone.percentrelativelayout.TestRelativeLayout,com.stone.percentrelativelayout.R,com.stone.percentrelativelayout.BuildConfig
注: element的getKind() = PACKAGE
注: element的getModifiers() = []
注: ====begin====
注: element is null
注: =====end=======
注: =====end=======
注: =====end=======
注: =================================