mondrian.rolap
Class RolapNativeSql

java.lang.Object
  mondrian.rolap.RolapNativeSql

public class RolapNativeSql
extends Object

Creates SQL from parse tree nodes. Currently it creates the SQL that accesses a measure for the ORDER BY that is generated for a TopCount.

Since:

Nov 17, 2005

Author:

av

Nested Class Summary

(package private) class	RolapNativeSql.CalculatedMemberSqlCompiler compiles the underlying expression of a calculated member
(package private) static class	RolapNativeSql.CompositeSqlCompiler Implementation of RolapNativeSql.SqlCompiler that uses chain of responsibility to find a matching sql compiler.
(package private) class	RolapNativeSql.FunCallSqlCompiler compiles a funcall, e.g.
(package private) class	RolapNativeSql.FunCallSqlCompilerBase contains utility methods to compile FunCall expressions into SQL.
(package private) class	RolapNativeSql.IifSqlCompiler compiles an IIF(cond, val1, val2) expression into SQL CASE WHEN cond THEN val1 ELSE val2 END
(package private) class	RolapNativeSql.InfixOpSqlCompiler compiles an infix operator like addition into SQL like (a + b)
(package private) class	RolapNativeSql.IsEmptySqlCompiler compiles an IsEmpty(measure) expression into SQL measure is null
(package private) class	RolapNativeSql.MemberSqlCompiler base class to remove MemberScalarExp
(package private) class	RolapNativeSql.NumberSqlCompiler Compiles a numeric literal to SQL.
(package private) class	RolapNativeSql.ParenthesisSqlCompiler shortcut for ()
(package private) static interface	RolapNativeSql.SqlCompiler Translates an expression into SQL
(package private) class	RolapNativeSql.StoredMeasureSqlCompiler compiles a measure into SQL, the measure will be aggregated like sum(measure)
(package private) class	RolapNativeSql.UnaryOpSqlCompiler shortcut for an unary operator like NOT(a)

Field Summary

(package private) RolapNativeSql.CompositeSqlCompiler	booleanCompiler
(package private) RolapNativeSql.CompositeSqlCompiler	numericCompiler
(package private) RolapStoredMeasure	storedMeasure

Constructor Summary

RolapNativeSql(SqlQuery sqlQuery)
creates a new instance

Method Summary

String	generateFilterCondition(Exp exp)
String	generateTopCountOrderBy(Exp exp) generates an aggregate of a measure, e.g.
RolapStoredMeasure	getStoredMeasure()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

numericCompiler

RolapNativeSql.CompositeSqlCompiler numericCompiler

booleanCompiler

RolapNativeSql.CompositeSqlCompiler booleanCompiler

storedMeasure

RolapStoredMeasure storedMeasure

Constructor Detail

RolapNativeSql

RolapNativeSql(SqlQuery sqlQuery)

creates a new instance

Parameters:

sqlQuery - the query which is needed for differen SQL dialects - its not modified.

Method Detail

generateTopCountOrderBy

public String generateTopCountOrderBy(Exp exp)

generates an aggregate of a measure, e.g. "sum(Store_Sales)" for TopCount. The returned expr will be added to the select list and to the order by clause.

generateFilterCondition

public String generateFilterCondition(Exp exp)

getStoredMeasure

public RolapStoredMeasure getStoredMeasure()