RdqlNDbEngine Class

PHP	string _generateSql_SelectVar(string $varName)

Generate a piece of an sql select statement for a variable. Look first if the given variable is defined as a pattern object. (So you can select the node type, literal lang and dtype) If not found - look for subjects and select node label and type. If there is no result either go to predicates. Predicates are always resources therefore select only the node label.

Arguments

• $varName

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PHP	string generateSql_FromClause()

Generate SQL FROM clause

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PHP	string generateSql_SelectClause()

Generate SQL SELECT clause.

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PHP	string generateSql_WhereClause(integer $modelID)

Generate an SQL WHERE clause

Arguments

• $modelID

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PHP	array queryModel(unknown $dbModel, unknown $parsedQuery, boolean $returnNodes)

Perform an RDQL Query on the given DbModel.

Arguments

• $dbModel

• $parsedQuery

• $returnNodes [optional, default value = TRUE]

Return

[][?VARNAME] = object Node (if $returnNodes = TRUE) OR array [][?VARNAME] = string

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