org.eclipse.emfforms.spi.common.converter

Interface EStructuralFeatureValueConverter

All Known Implementing Classes:

DefaultEAttributeValueConverterImpl

public interface EStructuralFeatureValueConverter

Since:

1.11

Author:

Mathias Schaefer

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	EStructuralFeatureValueConverter.Direction Conversion direction.

Field Summary

Fields

Modifier and Type	Field and Description
static double	NOT_APPLICABLE Constant value to mark a converter implementation not applicable for the given EObject/EStructuralFeature combination.

Method Summary

Modifier and Type	Method and Description
Object	convertToLiteral(org.eclipse.emf.ecore.EObject eObject, org.eclipse.emf.ecore.EStructuralFeature feature, Object instance) Convert model value instance to string literal.
Object	convertToModelValue(org.eclipse.emf.ecore.EObject eObject, org.eclipse.emf.ecore.EStructuralFeature feature, String literal) Convert string literal to model value instance.
double	isApplicable(org.eclipse.emf.ecore.EObject eObject, org.eclipse.emf.ecore.EStructuralFeature feature, Object value, EStructuralFeatureValueConverter.Direction direction) Check whether this converter instance is applicable for the given feature.

Field Detail

NOT_APPLICABLE

static final double NOT_APPLICABLE

Constant value to mark a converter implementation not applicable for the given EObject/EStructuralFeature combination.

See Also:

Constant Field Values

Method Detail

isApplicable

double isApplicable(org.eclipse.emf.ecore.EObject eObject,
                    org.eclipse.emf.ecore.EStructuralFeature feature,
                    Object value,
                    EStructuralFeatureValueConverter.Direction direction)

Check whether this converter instance is applicable for the given feature.

Parameters:

eObject - (optional)

feature - the target feature

value - the value

direction - the direction

Returns:

rank of converter (higher value means higher priority)

convertToModelValue

Object convertToModelValue(org.eclipse.emf.ecore.EObject eObject,
                           org.eclipse.emf.ecore.EStructuralFeature feature,
                           String literal)

Convert string literal to model value instance.

Parameters:

eObject - (optional, only required for EReferences)

feature - the target feature

literal - the string literal

Returns:

converted value

convertToLiteral

Object convertToLiteral(org.eclipse.emf.ecore.EObject eObject,
                        org.eclipse.emf.ecore.EStructuralFeature feature,
                        Object instance)

Convert model value instance to string literal.

Parameters:

eObject - (optional)

feature - the source feature

instance - the source value object

Returns:

converted value (commonly a string literal)