Package dev.grafeo.gwp.internal

Class ValueConverter

java.lang.Object

dev.grafeo.gwp.internal.ValueConverter

public final class ValueConverter
extends Object

Converts between protobuf gql.Value messages and native Java objects.

Protobuf types are referenced via the generated classes in the gql package, which the protobuf-maven-plugin generates from the proto files.

Method Summary

Modifier and Type	Method	Description
static Object	fromProto(GqlTypes.Value proto)	Convert a protobuf Value to a native Java object.
static GqlTypes.Value	toProto(Object value)	Convert a native Java value to a protobuf Value.

Methods inherited from class java.lang.Object

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

Method Details

fromProto

public static Object fromProto(GqlTypes.Value proto)

Convert a protobuf Value to a native Java object.

The mapping is:

• null_value -> null
• boolean_value -> Boolean
• integer_value -> Long
• unsigned_integer_value -> Long
• float_value -> Double
• string_value -> String
• bytes_value -> byte[]
• date_value -> GqlDate
• local_time_value -> GqlLocalTime
• zoned_time_value -> GqlZonedTime
• local_datetime_value -> GqlLocalDateTime
• zoned_datetime_value -> GqlZonedDateTime
• duration_value -> GqlDuration
• list_value -> List
• record_value -> GqlRecord
• node_value -> GqlNode
• edge_value -> GqlEdge
• path_value -> GqlPath

Parameters:

proto - the protobuf Value message

Returns:

the native Java value, or null for null/unrecognized types

toProto

public static GqlTypes.Value toProto(Object value)

Convert a native Java value to a protobuf Value.

Supported types: null, Boolean, Integer, Long, Float, Double, String, byte[], GqlDate, GqlLocalTime, GqlZonedTime, GqlLocalDateTime, GqlZonedDateTime, GqlDuration, List. Unsupported types map to null.

Parameters:

value - the Java value to convert

Returns:

the protobuf Value message