Examples of org.springframework.binding.value.support.BufferedCollectionValueModel

org.springframework.binding.value.support.BufferedCollectionValueModel

A BufferedValueModel that uses an ObservableList as a buffer to hold chandes to a Collection or array. Internally this is called the "buffered list model."

On commit the following steps occur:

a new instance of the backing collection type is created
the contents of the list model is inserted into this new collection
the new collection is saved into the underlying collection's value model
the structure of the list model is compared to the structure of the new underlying collection and if they differ the list model is updated to reflect the new structure.

NOTE: Between calls to commit the list model adheres to the contract defined in java.util.List NOT the contract of the underlying collection's type. This can result in the list model representing a state that is not possible for the underlying collection. @author oliverh

    public ObservableList createBoundListModel(String formProperty) {
        final ConfigurableFormModel formModel = ((ConfigurableFormModel)getFormModel());
        ValueModel valueModel = formModel.getValueModel(formProperty);
        if (!(valueModel instanceof BufferedCollectionValueModel)) {
            // XXX: HACK!
            valueModel = new BufferedCollectionValueModel((((DefaultFormModel) formModel).getFormObjectPropertyAccessStrategy()).getPropertyValueModel(
                    formProperty), formModel.getFieldMetadata(formProperty).getPropertyType());
            formModel.add(formProperty, valueModel);
        }
        return (ObservableList)valueModel.getValue();
    }

Examples of org.springframework.binding.value.support.BufferedCollectionValueModel

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