com.vesoft.nebula.encoder

Class NebulaCodecImpl

java.lang.Object

com.vesoft.nebula.encoder.NebulaCodecImpl

All Implemented Interfaces:

NebulaCodec

public class NebulaCodecImpl
extends Object
implements NebulaCodec

NebulaCodecImpl is an encoder to generate the given data. If the schema with default value, and the filed without given data, it will throw error. TODO: Support default value

Constructor Summary

Constructors

Constructor and Description
NebulaCodecImpl()

Method Summary

Modifier and Type	Method and Description
byte[]	edgeKey(int vidLen, int partitionId, byte[] srcId, int edgeType, long edgeRank, byte[] dstId, byte edgeVerHolder)
byte[]	edgeKeyByDefaultVer(int vidLen, int partitionId, byte[] srcId, int edgeType, long edgeRank, byte[] dstId)
byte[]	encodeEdge(EdgeItem edge, List<String> names, List<Object> values)
byte[]	encodeTag(TagItem tag, List<String> names, List<Object> values)
byte[]	orphanVertexKey(int vidLen, int partitionId, byte[] vertexId)
byte[]	vertexKey(int vidLen, int partitionId, byte[] vertexId, int tagId)

Methods inherited from class java.lang.Object

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

Constructor Detail

NebulaCodecImpl

public NebulaCodecImpl()

Method Detail

vertexKey

public byte[] vertexKey(int vidLen,
                        int partitionId,
                        byte[] vertexId,
                        int tagId)

Specified by:

vertexKey in interface NebulaCodec

Parameters:

vidLen - the vidLen from the space description

partitionId - the partitionId

vertexId - the vertex id

tagId - the tag id

Returns:

orphanVertexKey

public byte[] orphanVertexKey(int vidLen,
                              int partitionId,
                              byte[] vertexId)

Specified by:

orphanVertexKey in interface NebulaCodec

Parameters:

vidLen - the vidLen from the space description

partitionId - the partitionId

vertexId - the vertex id

Returns:

edgeKeyByDefaultVer

public byte[] edgeKeyByDefaultVer(int vidLen,
                                  int partitionId,
                                  byte[] srcId,
                                  int edgeType,
                                  long edgeRank,
                                  byte[] dstId)

Specified by:

edgeKeyByDefaultVer in interface NebulaCodec

Parameters:

vidLen - the vidLen from the space description

partitionId - the partitionId

srcId - the src id

edgeType - the edge type

edgeRank - the ranking

dstId - the dstId

Returns:

byte[]

edgeKey

public byte[] edgeKey(int vidLen,
                      int partitionId,
                      byte[] srcId,
                      int edgeType,
                      long edgeRank,
                      byte[] dstId,
                      byte edgeVerHolder)

Specified by:

edgeKey in interface NebulaCodec

Parameters:

vidLen - the vidLen from the space description

partitionId - the partitionId

srcId - the src id

edgeType - the edge type

edgeRank - the ranking

dstId - the dstId

edgeVerHolder - the edgeVerHolder

Returns:

byte[]

encodeTag

public byte[] encodeTag(TagItem tag,
                        List<String> names,
                        List<Object> values)
                 throws RuntimeException

Specified by:

encodeTag in interface NebulaCodec

Parameters:

tag - the TagItem

names - the property names

values - the property values

Returns:

the encode byte[]

Throws:

RuntimeException - expection

encodeEdge

public byte[] encodeEdge(EdgeItem edge,
                         List<String> names,
                         List<Object> values)
                  throws RuntimeException

Specified by:

encodeEdge in interface NebulaCodec

Parameters:

edge - the EdgeItem

names - the property names

values - the property values

Returns:

the encode byte[]

Throws:

RuntimeException - expection