Package software.amazon.awssdk.enhanced.dynamodb.internal.converter.attribute

Class ZonedDateTimeAsStringAttributeConverter

java.lang.Object

software.amazon.awssdk.enhanced.dynamodb.internal.converter.attribute.ZonedDateTimeAsStringAttributeConverter

All Implemented Interfaces:

AttributeConverter<ZonedDateTime>

@ThreadSafe
@Immutable
public final class ZonedDateTimeAsStringAttributeConverter
extends Object
implements AttributeConverter<ZonedDateTime>

A converter between ZonedDateTime and AttributeValue.

This stores values in DynamoDB as a string.

Values are stored in a ISO-8601-like format, with the non-offset zone IDs being added at the end of the string in square brackets. If the zone ID offset has seconds, then they will also be included, even though this is not part of the ISO-8601 standard. For full ISO-8601 compliance, it is better to use OffsetDateTimes (without second-level precision in its offset) or Instants, assuming the time zone information is not strictly required.

Examples:

• Instant.EPOCH.atZone(ZoneId.of("Europe/Paris")) is stored as an AttributeValue with the String "1970-01-01T01:00+01:00[Europe/Paris]"
• OffsetDateTime.MIN.toZonedDateTime() is stored as an AttributeValue with the String "-999999999-01-01T00:00+18:00"
• OffsetDateTime.MAX.toZonedDateTime() is stored as an AttributeValue with the String "+999999999-12-31T23:59:59.999999999-18:00"
• Instant.EPOCH.atZone(ZoneOffset.UTC) is stored as an AttributeValue with the String "1970-01-01T00:00Z"

See OffsetDateTime for more details on the serialization format.

This converter can read any values written by itself, InstantAsStringAttributeConverter, or OffsetDateTimeAsStringAttributeConverter. Values written by Instant converters are treated as if they are in the UTC time zone.

This serialization is lexicographically orderable when the year is not negative.

This can be created via create().

Constructor Summary

Constructors

Constructor	Description
ZonedDateTimeAsStringAttributeConverter()

Method Summary

Modifier and Type	Method	Description
AttributeValueType	attributeValueType()	The AttributeValueType that a converter stores and reads values from DynamoDB via the AttributeValue class.
static ZonedDateTimeAsStringAttributeConverter	create()
AttributeValue	transformFrom(ZonedDateTime input)	Convert the provided Java object into an AttributeValue.
ZonedDateTime	transformTo(AttributeValue input)	Convert the provided AttributeValue into a Java object.
EnhancedType<ZonedDateTime>	type()	The type supported by this converter.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ZonedDateTimeAsStringAttributeConverter

public ZonedDateTimeAsStringAttributeConverter()

Method Details

create

public static ZonedDateTimeAsStringAttributeConverter create()

type

public EnhancedType<ZonedDateTime> type()

Description copied from interface: AttributeConverter

The type supported by this converter.

Specified by:

type in interface AttributeConverter<ZonedDateTime>

attributeValueType

public AttributeValueType attributeValueType()

Description copied from interface: AttributeConverter

The AttributeValueType that a converter stores and reads values from DynamoDB via the AttributeValue class.

Specified by:

attributeValueType in interface AttributeConverter<ZonedDateTime>

transformFrom

public AttributeValue transformFrom(ZonedDateTime input)

Description copied from interface: AttributeConverter

Convert the provided Java object into an AttributeValue. This will raise a RuntimeException if the conversion fails, or the input is null.

Example:

 
 InstantAsStringAttributeConverter converter = InstantAsStringAttributeConverter.create();
 assertEquals(converter.transformFrom(Instant.EPOCH),
              EnhancedAttributeValue.fromString("1970-01-01T00:00:00Z").toAttributeValue());
 
 

Specified by:

transformFrom in interface AttributeConverter<ZonedDateTime>

transformTo

public ZonedDateTime transformTo(AttributeValue input)

Description copied from interface: AttributeConverter

Convert the provided AttributeValue into a Java object. This will raise a RuntimeException if the conversion fails, or the input is null.

 Example:
 
 InstantAsStringAttributeConverter converter = InstantAsStringAttributeConverter.create();
 assertEquals(converter.transformTo(EnhancedAttributeValue.fromString("1970-01-01T00:00:00Z").toAttributeValue()),
              Instant.EPOCH);
 
 

Specified by:

transformTo in interface AttributeConverter<ZonedDateTime>