Examples of org.datanucleus.store.mapped.expression.QueryExpression.select()

Package org.datanucleus.store.mapped.expression

Class org.datanucleus.store.mapped.expression.QueryExpression

Examples of org.datanucleus.store.mapped.expression.QueryExpression.select()

org.datanucleus.store.mapped.expression.QueryExpression.select()
Select the columns for a mapping @param mapping The mapping @return The index of the columns in the select

        ScalarExpression ownerInCollectionExpr = ownerMapping.newScalarExpression(stmt,
            stmt.getTableExpression(collectionTableAlias));
        stmt.andCondition(ownerExpr.eq(ownerInCollectionExpr));


        // Select id mapping of element
        stmt.select(collectionTableAlias, elementMapping);


        return stmt;
    }


    /**

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            discrimTableExpr = stmt.getMainTableExpression();


            if (hasDiscriminator && selectDiscriminator)
            {
                // Select the discriminator column so we can process the ResultSet
                stmt.select(discriminatorMapping);
            }
        }


        // Check if we can omit the discriminator restriction
        if (includeSubclasses && hasDiscriminator && candidateTable.getDiscriminatorMapping(false) != null &&

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        // Join to the owner
        ScalarExpression ownerExpr = mapping.newScalarExpression(stmt, ownerTe);
        ScalarExpression ownerInMapExpr = ownerMapping.newScalarExpression(stmt, stmt.getTableExpression(mapTableAlias));
        stmt.andCondition(ownerExpr.eq(ownerInMapExpr));


        stmt.select(mapTableAlias, valueMapping);


        return stmt;
    }


    /**

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        // Join for the owner
        ScalarExpression ownerExpr = mapping.newScalarExpression(stmt, ownerTe);
        ScalarExpression ownerInCollectionExpr = ownerMapping.newScalarExpression(stmt, stmt.getTableExpression(arrayTableAlias));
        stmt.andCondition(ownerExpr.eq(ownerInCollectionExpr));


        stmt.select(arrayTableAlias, elementMapping);


        return stmt;
    }


    /**

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    {
        if (storeMgr.getMappedTypeManager().isSupportedMappedType(candidateFullClassName))
        {
            // SCO candidates, embedded in the source so just select the source table
            QueryExpression qs = dba.newQueryStatement(sourceTable, candidateAlias, clr);
            qs.select(sourceMapping);
            return qs;
        }
        else
        {
            // FCO candidates

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