Function EffectsBuffer_AddCreateEdgeEffect

src/effects/effects.c:374–429

add a edge creation effect to buffer

// add a edge creation effect to buffer
void EffectsBuffer_AddCreateEdgeEffect
(
	EffectsBuffer *buff,  // effect buffer
	const Edge *edge      // edge created
) {
	//--------------------------------------------------------------------------
	// effect format:
	// effect type
	// relationship count
	// relationships
	// src node ID
	// dest node ID
	// attribute count
	// attributes (id,value) pair
	//--------------------------------------------------------------------------
	
	ResultSetStatistics *stats = QueryCtx_GetResultSetStatistics();
	stats->relationships_created++;
	stats->properties_set += AttributeSet_Count(*edge->attributes);

	EffectType t = EFFECT_CREATE_EDGE;
	EffectsBuffer_WriteBytes(&t, sizeof(t), buff);

	//--------------------------------------------------------------------------
	// write relationship type
	//--------------------------------------------------------------------------

	ushort rel_count = 1;
	EffectsBuffer_WriteBytes(&rel_count, sizeof(rel_count), buff);

	RelationID rel_id = Edge_GetRelationID(edge);
	EffectsBuffer_WriteBytes(&rel_id, sizeof(RelationID), buff);

	//--------------------------------------------------------------------------
	// write src node ID
	//--------------------------------------------------------------------------
	
	NodeID src_id = Edge_GetSrcNodeID(edge);
	EffectsBuffer_WriteBytes(&src_id, sizeof(NodeID), buff);

	//--------------------------------------------------------------------------
	// write dest node ID
	//--------------------------------------------------------------------------

	NodeID dest_id = Edge_GetDestNodeID(edge);
	EffectsBuffer_WriteBytes(&dest_id, sizeof(NodeID), buff);

	//--------------------------------------------------------------------------
	// write attribute set 
	//--------------------------------------------------------------------------

	const AttributeSet attrs = GraphEntity_GetAttributes((GraphEntity*)edge);
	EffectsBuffer_WriteAttributeSet(attrs, buff);

	EffectsBuffer_IncEffectCount(buff);
}

// add a node deletion effect to buffer