Package org.apache.sis.internal.converter

Class ObjectToString.Enum<S extends Enum<S>>

java.lang.Object

org.apache.sis.internal.converter.ClassPair<S,T>

org.apache.sis.internal.converter.SystemConverter<S,String>

org.apache.sis.internal.converter.ObjectToString<S>

org.apache.sis.internal.converter.ObjectToString.Enum<S>

All Implemented Interfaces:

Serializable, Function<S,String>, ObjectConverter<S,String>

Enclosing class:

ObjectToString<S>

static final class ObjectToString.Enum<S extends Enum<S>>
extends ObjectToString<S>

Specialized instance for Enum. This class invokes Enum.name() instead of toString().

See Also:

• StringConverter.Enum

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sis.internal.converter.ObjectToString

ObjectToString.CodeList<S extends org.opengis.util.CodeList<S>>, ObjectToString.Enum<S extends Enum<S>>

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID

Fields inherited from class org.apache.sis.internal.converter.ClassPair

sourceClass, targetClass

Constructor Summary

Constructors

Constructor	Description
Enum(Class<S> sourceClass, SystemConverter<String,S> inverse)	Creates a new converter from the given type of enum to strings.

Method Summary

Modifier and Type	Method	Description
String	apply(S source)	Returns the name of the given code list element.
Set<FunctionProperty>	properties()	Function is bijective, because no duplicated enum name shall exist.

Methods inherited from class org.apache.sis.internal.converter.ObjectToString

inverse, unique

Methods inherited from class org.apache.sis.internal.converter.SystemConverter

bijective, equals, formatErrorMessage, getSourceClass, getTargetClass, readResolve

Methods inherited from class org.apache.sis.internal.converter.ClassPair

cast, hashCode, parentSource, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, compose

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

Constructor Details

Enum

Enum(Class<S> sourceClass,
 SystemConverter<String,S> inverse)

Creates a new converter from the given type of enum to strings.

Method Details

properties

public Set<FunctionProperty> properties()

Function is bijective, because no duplicated enum name shall exist.

Specified by:

properties in interface ObjectConverter<S extends Enum<S>,String>

Overrides:

properties in class ObjectToString<S extends Enum<S>>

Returns:

the manners in which source values are mapped to target values. May be an empty set, but never null.

apply

public String apply(S source)

Returns the name of the given code list element.

Specified by:

apply in interface Function<S extends Enum<S>,String>

Specified by:

apply in interface ObjectConverter<S extends Enum<S>,String>

Overrides:

apply in class ObjectToString<S extends Enum<S>>

Parameters:

source - the object to convert, or null.

Returns:

the converted object, or null.