Package grails.databinding

Interface StructuredBindingEditor<T>

  • All Superinterfaces:
    BindingHelper<T>
    All Known Subinterfaces:
    TypedStructuredBindingEditor<T>
    public interface StructuredBindingEditor<T>
extends BindingHelper<T>
    StructuredBindingEditors convert structured data in a Map into an object. Typically a structured editor will pull several values out of the Map that are necessary to initialize the state of the object. class Address { String state String city } class StructuredAddressBindingEditor implements StructuredBindingEditor { public Object getPropertyValue(Object obj, String propertyName, Map<String, Object> source) { def address = new Address() address.state = source[propertyName + '_someState'] address.city = source[propertyName + '_someCity'] address } } def binder = new SimpleDataBinder() binder.registerStructuredEditor Address, new StructuredAddressBindingEditor() def resident = new Resident() def bindingSource = [:] bindingSource.name = 'Scott' bindingSource.homeAddress_someCity = "Scott's Home City" bindingSource.homeAddress_someState = "Scott's Home State" bindingSource.workAddress_someState = "Scott's Work State" bindingSource.workAddress = 'struct' bindingSource.homeAddress = 'struct' binder.bind resident, bindingSource resident.name == 'Scott' resident.homeAddress assert resident.homeAddress.city == "Scott's Home City" assert resident.homeAddress.state == "Scott's Home State" assert resident.workAddress assert resident.workAddress.state == "Scott's Work State" assert resident.workAddress.city == null
    Since:
    3.0
    See Also:
    SimpleDataBinder.registerStructuredEditor(Class, StructuredBindingEditor)

    • Method Detail

      • getPropertyValue

        T getPropertyValue​(java.lang.Object obj,
                   java.lang.String propertyName,
                   DataBindingSource source)
        The value returned from this method will be bound to the property specified by propertyName.
        Specified by:
        getPropertyValue in interface BindingHelper<T>
        Parameters:
        obj - The object that data binding is being applied to
        propertyName - The name of the property data binding is being applied to
        source - The source containing all of the values being bound to this object
        Returns:
        The value which should be bound to propertyName