Examples with Scope org.apache.jena.sdb.core.Scope used on opensource projects

Example 1 with Scope

use of org.apache.jena.sdb.core.Scope in project jena by apache.

the class SQLBridge2 method insertValueGetter.

private SqlNode insertValueGetter(SDBRequest request, SqlNode sqlNode, Var var) {
    ScopeEntry e1 = sqlNode.getIdScope().findScopeForVar(var);
    if (e1 == null) {
        // Debug.
        Scope scope = sqlNode.getIdScope();
        // Variable not actually in results.
        return sqlNode;
    }
    // Already in scope (from a condition)?
    ScopeEntry e2 = sqlNode.getNodeScope().findScopeForVar(var);
    if (e2 != null)
        // Already there
        return sqlNode;
    SqlColumn c1 = e1.getColumn();
    // Not in scope -- add a table to get it
    TableDescNodes nodeTableDesc = request.getStore().getNodeTableDesc();
    String tableAlias = request.genId(NodeBase);
    SqlTable nTable = new SqlTable(tableAlias, nodeTableDesc.getTableName());
    String nodeKeyColName = nodeTableDesc.getNodeRefColName();
    SqlColumn c2 = new SqlColumn(nTable, nodeKeyColName);
    nTable.setValueColumnForVar(var, c2);
    // Condition for value: triple table column = node table id/hash 
    nTable.addNote("Var: " + var);
    SqlExpr cond = new S_Equal(c1, c2);
    SqlNode n = SqlBuilder.leftJoin(request, sqlNode, nTable, cond);
    return n;
}