com.holonplatform.core

Interface ExpressionValueConverter<TYPE,MODEL>

Type Parameters:

TYPE - Expression type

MODEL - Model type

public interface ExpressionValueConverter<TYPE,MODEL>

The expression value converter associated to a ConverterExpression.

Since:

5.1.0

Method Summary

Modifier and Type	Method and Description
TYPE	fromModel(MODEL value) Convert given value from model data type to expression value type.
static <TYPE> Optional<ExpressionValueConverter<TYPE,?>>	fromProperty(Property<TYPE> property) Create a new ExpressionValueConverter using given property.
Class<MODEL>	getModelType() Get the model data type.
MODEL	toModel(TYPE value) Convert given value from expression value type to model data type.

Method Detail

fromModel

TYPE fromModel(MODEL value)

Convert given value from model data type to expression value type.

Parameters:

value - Value to convert

Returns:

Value converted to expression value type

toModel

MODEL toModel(TYPE value)

Convert given value from expression value type to model data type.

Parameters:

value - Value to convert

Returns:

Value converted to model data type

getModelType

Class<MODEL> getModelType()

Get the model data type.

Returns:

Model data type

fromProperty

static <TYPE> Optional<ExpressionValueConverter<TYPE,?>> fromProperty(Property<TYPE> property)

Create a new ExpressionValueConverter using given property.

Type Parameters:

TYPE - Expression type

Parameters:

property - Property (not null)

Returns:

If the property provides a PropertyValueConverter, return an ExpressionValueConverter which uses the property value converter to perform conversions. Otherwise, an empty Optional is returned.