mondrian.olap

Class ExpBase

java.lang.Object

mondrian.olap.QueryPart

mondrian.olap.ExpBase

All Implemented Interfaces:

Exp, Walkable

Direct Known Subclasses:

DimensionExpr, HierarchyExpr, Id, LevelExpr, Literal, MemberExpr, NamedSetExpr, ParameterExpr, ResolvedFunCall, UnresolvedFunCall

public abstract class ExpBase
extends QueryPart
implements Exp

Skeleton implementation of Exp interface.

Author:

jhyde, 20 January, 1999

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExpBase()

Method Summary

Methods

Modifier and Type	Method and Description
Calc	accept(ExpCompiler compiler) Converts this expression into an a tree of expressions which can be efficiently evaluated.
abstract Exp	clone()
protected static Exp[]	cloneArray(Exp[] a)
static int[]	getTypes(Exp[] exps)
static void	unparseList(PrintWriter pw, Exp[] exps, String start, String mid, String end)

Methods inherited from class mondrian.olap.QueryPart

explain, getChildren, unparse

Methods inherited from class java.lang.Object

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

Methods inherited from interface mondrian.olap.Exp

accept, accept, getCategory, getType, unparse

Constructor Detail

ExpBase

protected ExpBase()

Method Detail

cloneArray

protected static Exp[] cloneArray(Exp[] a)

clone

public abstract Exp clone()

Specified by:

clone in interface Exp

Overrides:

clone in class Object

unparseList

public static void unparseList(PrintWriter pw,
               Exp[] exps,
               String start,
               String mid,
               String end)

getTypes

public static int[] getTypes(Exp[] exps)

accept

public Calc accept(ExpCompiler compiler)

Description copied from interface: Exp

Converts this expression into an a tree of expressions which can be efficiently evaluated.

Specified by:

accept in interface Exp

Returns:

A compiled expression