Module is.codion.framework.domain

Package is.codion.framework.domain.entity.attribute

Interface DerivedAttributeDefinition<T>

Type Parameters:

T - the underlying type

All Superinterfaces:

AttributeDefinition<T>

public interface DerivedAttributeDefinition<T>
extends AttributeDefinition<T>

A definition for attributes which value is derived from the values of one or more attribute.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	DerivedAttributeDefinition.Builder<T,B extends DerivedAttributeDefinition.Builder<T,B>>	Builds a derived AttributeDefinition instance

Nested classes/interfaces inherited from interface is.codion.framework.domain.entity.attribute.AttributeDefinition

AttributeDefinition.ValueSupplier<T>

Field Summary

Fields inherited from interface is.codion.framework.domain.entity.attribute.AttributeDefinition

DATE_FORMAT, DATE_TIME_FORMAT, DECIMAL_ROUNDING_MODE, DECIMAL_SEPARATOR, DEFAULT_MAXIMUM_FRACTION_DIGITS, GROUPING_SEPARATOR, MAXIMUM_FRACTION_DIGITS, NUMBER_FORMAT_GROUPING, TIME_FORMAT, USE_LEXICAL_STRING_COMPARATOR

Method Summary

Modifier and Type	Method	Description
boolean	cached()	Note that cached attributes are included when an entity is serialized.
List<Attribute<?>>	sourceAttributes()
DerivedAttribute.Provider<T>	valueProvider()

Methods inherited from interface is.codion.framework.domain.entity.attribute.AttributeDefinition

attribute, caption, comparator, dateTimeFormatter, dateTimePattern, decimalRoundingMode, defaultValue, derived, description, entityType, format, hasDefaultValue, hidden, items, maximumFractionDigits, maximumLength, maximumValue, minimumValue, mnemonic, nullable, string, validItem

Method Details

sourceAttributes

List<Attribute<?>> sourceAttributes()

Returns:

the attributes this attribute derives from.

valueProvider

DerivedAttribute.Provider<T> valueProvider()

Returns:

the value provider, providing the derived value

cached

boolean cached()

Note that cached attributes are included when an entity is serialized.

Returns:

true if the value of this derived attribute is cached, false if computed on each access