Package org.apache.sis.internal.converter

Class DateConverter<T>

java.lang.Object

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

org.apache.sis.internal.converter.SystemConverter<Date,T>

org.apache.sis.internal.converter.DateConverter<T>

All Implemented Interfaces:

Serializable, Function<Date,T>, ObjectConverter<Date,T>

Direct Known Subclasses:

DateConverter.Long, DateConverter.SQL, DateConverter.Timestamp

abstract class DateConverter<T>
extends SystemConverter<Date,T>

Handles conversions from Date to various objects.

String representation

There is currently no converter between String and Date because the date format is not yet defined (we are considering the ISO format for a future SIS version).

Special cases

The converter from dates to timestamps is not injective, because the same date could be mapped to many timestamps since timestamps have an additional nanoseconds field.

Immutability and thread safety

This base class and all inner classes are immutable, and thus inherently thread-safe.

Since:

0.3

Version:

0.3

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	DateConverter.Inverse	Converter from Long to Date.
static final class	DateConverter.Long	Converter from Date to Long.
static final class	DateConverter.SQL	From Date to SQL Date.
static final class	DateConverter.Timestamp	From Date to SQL Timestamp.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) SystemConverter<T,Date>	inverse	The inverse converter.
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
DateConverter(Class<T> targetClass)	Creates a converter for the given target type.

Method Summary

Modifier and Type	Method	Description
final ObjectConverter<T,Date>	inverse()	Returns the inverse converter.
Set<FunctionProperty>	properties()	Returns the function properties.

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

bijective, equals, formatErrorMessage, getSourceClass, getTargetClass, 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

Methods inherited from interface org.apache.sis.util.ObjectConverter

apply

Field Details

serialVersionUID

private static final long serialVersionUID

For cross-version compatibility.

See Also:

• Constant Field Values

inverse

SystemConverter<T,Date> inverse

The inverse converter. Must be initialized by subclass constructors.

Constructor Details

DateConverter

DateConverter(Class<T> targetClass)

Creates a converter for the given target type. Subclasses must initialize inverse.

Method Details

properties

public Set<FunctionProperty> properties()

Returns the function properties.

Returns:

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

inverse

public final ObjectConverter<T,Date> inverse()

Returns the inverse converter.

Specified by:

inverse in interface ObjectConverter<Date,T>

Overrides:

inverse in class SystemConverter<Date,T>

Returns:

a converter for converting instances of T back to instances of S.

See Also:

• FunctionProperty.INVERTIBLE