Package org.apache.sis.internal.converter

Class NumberConverter.Comparable<S extends Number>

java.lang.Object

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

org.apache.sis.internal.converter.SystemConverter<S,Comparable<?>>

org.apache.sis.internal.converter.NumberConverter.Comparable<S>

All Implemented Interfaces:

Serializable, Function<S,Comparable<?>>, ObjectConverter<S,Comparable<?>>

Enclosing class:

NumberConverter<S extends Number,T extends Number>

static final class NumberConverter.Comparable<S extends Number>
extends SystemConverter<S,Comparable<?>>

Converter from numbers to comparables. This special case exists because Number does not implement Comparable directly, but all known subclasses do.

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID	For cross-version compatibility.

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

sourceClass, targetClass

Constructor Summary

Constructors

Constructor	Description
Comparable(Class<S> sourceClass)	Creates a new converter from the given type of numbers to Comparable instances.

Method Summary

Modifier and Type	Method	Description
Comparable<?>	apply(Number source)	Converts the given number to a Comparable if its type is different.
Set<FunctionProperty>	properties()	If the source class implements Comparable, then this converter is bijective.

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

bijective, equals, formatErrorMessage, getSourceClass, getTargetClass, inverse, readResolve, unique

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

For cross-version compatibility.

See Also:

• Constant Field Values

Constructor Details

Comparable

Comparable(Class<S> sourceClass)

Creates a new converter from the given type of numbers to Comparable instances.

Method Details

properties

public Set<FunctionProperty> properties()

If the source class implements Comparable, then this converter is bijective. Otherwise there is no known property for this converter.

Returns:

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

apply

public Comparable<?> apply(Number source)

Converts the given number to a Comparable if its type is different.

Parameters:

source - the object to convert, or null.

Returns:

the converted object, or null.