private Entry getEntry( InternalTitanTransaction tx, InternalRelation edge, InternalTitanVertex perspective, Map<TitanType, TypeSignature> signatures, boolean columnOnly) { TitanType et = edge.getType(); long etid = et.getID(); int dirID; if (edge.isProperty()) { dirID = 0; } else if (edge.getVertex(0).equals(perspective)) { // Out TitanRelation assert edge.isDirected() || edge.isUnidirected(); dirID = 2; } else { // In TitanRelation assert !edge.isUnidirected() && edge.getVertex(1).equals(perspective); dirID = 3; } int etIDLength = IDHandler.edgeTypeLength(etid, idManager); ByteBuffer column = null, value = null; if (et.isSimple()) { if (et.isFunctional()) { column = ByteBuffer.allocate(etIDLength); IDHandler.writeEdgeType(column, etid, dirID, idManager); } else { column = ByteBuffer.allocate(etIDLength + VariableLong.positiveLength(edge.getID())); IDHandler.writeEdgeType(column, etid, dirID, idManager); VariableLong.writePositive(column, edge.getID()); } column.flip(); if (!columnOnly) { if (edge.isEdge()) { long nodeIDDiff = ((TitanEdge) edge).getOtherVertex(perspective).getID() - perspective.getID(); int nodeIDDiffLength = VariableLong.length(nodeIDDiff); if (et.isFunctional()) { value = ByteBuffer.allocate(nodeIDDiffLength + VariableLong.positiveLength(edge.getID())); VariableLong.write(value, nodeIDDiff); VariableLong.writePositive(value, edge.getID()); } else { value = ByteBuffer.allocate(nodeIDDiffLength); VariableLong.write(value, nodeIDDiff); } value.flip(); } else { assert edge.isProperty(); DataOutput out = serializer.getDataOutput(defaultOutputCapacity, true); // Write object writeAttribute(out, (TitanProperty) edge); if (et.isFunctional()) { VariableLong.writePositive(out, edge.getID()); } value = out.getByteBuffer(); } } } else { TypeSignature ets = getSignature(tx, et, signatures); InternalRelation[] keys = new InternalRelation[ets.keyLength()], values = new InternalRelation[ets.valueLength()]; List<InternalRelation> rest = new ArrayList<InternalRelation>(); ets.sort(edge.getRelations(SimpleAtomicQuery.queryAll(edge), false), keys, values, rest); DataOutput out = serializer.getDataOutput(defaultOutputCapacity, true); IDHandler.writeEdgeType(out, etid, dirID, idManager); for (int i = 0; i < keys.length; i++) writeInlineEdge(out, keys[i], ets.getKeyType(i)); if (!et.isFunctional()) { VariableLong.writePositive(out, edge.getID()); } column = out.getByteBuffer(); if (!columnOnly) { out = serializer.getDataOutput(defaultOutputCapacity, true); if (edge.isEdge()) { long nodeIDDiff = ((TitanEdge) edge).getOtherVertex(perspective).getID() - perspective.getID(); VariableLong.write(out, nodeIDDiff); } else { assert edge.isProperty(); writeAttribute(out, (TitanProperty) edge); } if (et.isFunctional()) { assert edge.isEdge(); VariableLong.writePositive(out, edge.getID()); } for (int i = 0; i < values.length; i++) writeInlineEdge(out, values[i], ets.getValueType(i)); for (InternalRelation v : rest) writeInlineEdge(out, v); value = out.getByteBuffer(); } } return new Entry(column, value); }