salary bindable: false
firstName size: 5..15, bindable: true
department bindable: truebindable
目的
設定屬性的可繫結性。
範例
說明
設定為 false 表示屬性不得在資料繫結期間自動指派值。
package com.demo
class Employee {
String firstName
String department
BigDecimal salary
static constraints = {
department bindable: false
salary bindable: false
}
}import com.demo.Employee
def employee = new Employee()
employee.firstName = 'Bill'
employee.department = 'Percussion'
employee.salary = 42.0
// department and salary will NOT be bound because they are configured as non-bindable in the Employee.constraints closure
employee.properties = [firstName: 'William',
department: 'Retired',
salary: 99.99]
assert 'William' == employee.firstName
assert 'Percussion' == employee.department
assert 42.0 == employee.salary靜態型別的實例屬性預設為可繫結。預設不可繫結的屬性包括與暫時欄位、動態型別屬性和靜態屬性相關的屬性。
請參閱 資料繫結 區段，深入瞭解資料繫結。
bindable 約束必須指派一個文字布林值。動態表達式不是 bindable 約束的有效值。值必須是文字 true 或 false。
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bindable 約束必須套用在相關類別中定義的約束封閉中。這表示 bindable 不得用作共用約束。