Method CheckPath

storage/connect/bsonudf.cpp:1016–1051

/ CheckPath: Checks whether the path exists in the document. */ /

/* CheckPath: Checks whether the path exists in the document.                    */
/*********************************************************************************/
my_bool BJNX::CheckPath(PGLOBAL g)
{
	PBVAL   val = NULL;
	PBVAL   row = Row;

	for (int i = 0; i < Nod && row; i++) {
		val = NULL;

		if (Nodes[i].Op == OP_NUM || Nodes[i].Op == OP_XX) {
		} else switch (row->Type) {
			case TYPE_JOB:
				if (Nodes[i].Key)
					val = GetKeyValue(row, Nodes[i].Key);

				break;
			case TYPE_JAR:
				if (!Nodes[i].Key)
					if (Nodes[i].Op == OP_EQ || Nodes[i].Op == OP_LE)
						val = GetArrayValue(row, Nodes[i].Rank);

				break;
			case TYPE_JVAL:
				val = row;
				break;
			default:
				snprintf(g->Message, sizeof(g->Message), "Invalid row JSON type %d", row->Type);
		} // endswitch Type

		if (i < Nod-1)
			if (!(row = (IsJson(val)) ? val : NULL))
				val = NULL;

	} // endfor i

	return (val != NULL);
} // end of CheckPath

/*********************************************************************************/
/*  Check if a path was specified and set jvp according to it.                   */