Class OptionalIntAttributeConverter
java.lang.Object
software.amazon.awssdk.enhanced.dynamodb.internal.converter.attribute.OptionalIntAttributeConverter
- All Implemented Interfaces:
AttributeConverter<OptionalInt>
@ThreadSafe
@Immutable
public final class OptionalIntAttributeConverter
extends Object
implements AttributeConverter<OptionalInt>
A converter between
OptionalInt
and AttributeValue
.
This stores values in DynamoDB as a number.
This supports reading numbers between Integer.MIN_VALUE
and Integer.MAX_VALUE
from DynamoDB. Null values are
converted to OptionalInt.empty()
. For larger numbers, consider using the OptionalLongAttributeConverter
or
the OptionalAttributeConverter
along with a BigInteger
. For shorter numbers, consider using the
OptionalAttributeConverter
along with a Short
type.
This does not support reading decimal numbers. For decimal numbers, consider using OptionalDoubleAttributeConverter
,
or the OptionalAttributeConverter
with a Float
or BigDecimal
. Decimal numbers will cause a
NumberFormatException
on conversion.
This can be created via create()
.
-
Method Summary
Modifier and TypeMethodDescriptionTheAttributeValueType
that a converter stores and reads values from DynamoDB via theAttributeValue
class.create()
transformFrom
(OptionalInt input) Convert the provided Java object into anAttributeValue
.transformTo
(AttributeValue input) Convert the providedAttributeValue
into a Java object.type()
The type supported by this converter.
-
Method Details
-
type
Description copied from interface:AttributeConverter
The type supported by this converter.- Specified by:
type
in interfaceAttributeConverter<OptionalInt>
-
attributeValueType
Description copied from interface:AttributeConverter
TheAttributeValueType
that a converter stores and reads values from DynamoDB via theAttributeValue
class.- Specified by:
attributeValueType
in interfaceAttributeConverter<OptionalInt>
-
create
-
transformFrom
Description copied from interface:AttributeConverter
Convert the provided Java object into anAttributeValue
. This will raise aRuntimeException
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 interfaceAttributeConverter<OptionalInt>
-
transformTo
Description copied from interface:AttributeConverter
Convert the providedAttributeValue
into a Java object. This will raise aRuntimeException
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 interfaceAttributeConverter<OptionalInt>
-