mondrian.mdx

Class UnresolvedFunCall

java.lang.Object

mondrian.olap.QueryPart

mondrian.olap.ExpBase

mondrian.mdx.UnresolvedFunCall

All Implemented Interfaces:

Exp, FunCall

public class UnresolvedFunCall
extends ExpBase
implements FunCall

An expression consisting of a named function or operator applied to a set of arguments. The syntax determines whether this is called infix, with function call syntax, and so forth.

Since:

Sep 28, 2005

Author:

jhyde

Constructor Summary

Constructors

Constructor and Description
UnresolvedFunCall(String name, Exp[] args) Creates a function call with Syntax.Function syntax.
UnresolvedFunCall(String name, Syntax syntax, Exp[] args) Creates a function call.

Method Summary

Modifier and Type	Method and Description
Calc	accept(ExpCompiler compiler) Converts this expression into an a tree of expressions which can be efficiently evaluated.
Object	accept(MdxVisitor visitor) Accepts a visitor to this Exp.
Exp	accept(Validator validator) Validates this expression.
UnresolvedFunCall	clone()
Exp	getArg(int index) Returns the Exp argument at the specified index.
int	getArgCount() Returns the number of arguments.
Exp[]	getArgs() Returns the internal array of Exp arguments.
int	getCategory() Returns the Category of the expression.
Object[]	getChildren() Returns an array of the object's children.
String	getFunName() Returns the function name.
Syntax	getSyntax() Returns the syntax of this function call.
Type	getType() Returns the type of this expression.
void	unparse(PrintWriter pw) Writes a string representation of this parse tree node to the given writer.

Methods inherited from class mondrian.olap.ExpBase

cloneArray, getTypes, unparseList

Methods inherited from class mondrian.olap.QueryPart

explain

Methods inherited from class java.lang.Object

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

Constructor Detail

UnresolvedFunCall

public UnresolvedFunCall(String name,
                         Exp[] args)

Creates a function call with Syntax.Function syntax.

UnresolvedFunCall

public UnresolvedFunCall(String name,
                         Syntax syntax,
                         Exp[] args)

Creates a function call.

Method Detail

clone

public UnresolvedFunCall clone()

Specified by:

clone in interface Exp

Specified by:

clone in class ExpBase

getCategory

public int getCategory()

Description copied from interface: Exp

Returns the Category of the expression.

Specified by:

getCategory in interface Exp

getType

public Type getType()

Description copied from interface: Exp

Returns the type of this expression. Never null.

Specified by:

getType in interface Exp

unparse

public void unparse(PrintWriter pw)

Description copied from class: QueryPart

Writes a string representation of this parse tree node to the given writer.

Specified by:

unparse in interface Exp

Overrides:

unparse in class QueryPart

Parameters:

pw - writer

accept

public Object accept(MdxVisitor visitor)

Description copied from interface: Exp

Accepts a visitor to this Exp. The implementation should generally dispatches to the MdxVisitor.visit(mondrian.olap.Query) method appropriate to the type of expression.

Specified by:

accept in interface Exp

Parameters:

visitor - Visitor

accept

public Exp accept(Validator validator)

Description copied from interface: Exp

Validates this expression. The validator acts in the role of 'visitor' (see Gang of Four 'visitor pattern'), and an expression in the role of 'visitee'.

Specified by:

accept in interface Exp

Parameters:

validator - Validator contains validation context

Returns:

The validated expression; often but not always the same as this expression

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

Overrides:

accept in class ExpBase

Returns:

A compiled expression

getFunName

public String getFunName()

Returns the function name.

Specified by:

getFunName in interface FunCall

Returns:

function name

getSyntax

public Syntax getSyntax()

Returns the syntax of this function call.

Specified by:

getSyntax in interface FunCall

Returns:

the syntax of the call

getArg

public Exp getArg(int index)

Returns the Exp argument at the specified index.

Specified by:

getArg in interface FunCall

Parameters:

index - the index of the Exp.

Returns:

the Exp at the specified index of this array of Exp. The first Exp is at index 0.

See Also:

getArgs()

getArgs

public Exp[] getArgs()

Returns the internal array of Exp arguments.

Note: this does NOT do a copy.

Specified by:

getArgs in interface FunCall

Returns:

the array of expressions

getArgCount

public final int getArgCount()

Returns the number of arguments.

Specified by:

getArgCount in interface FunCall

Returns:

number of arguments.

See Also:

getArgs()

getChildren

public Object[] getChildren()

Returns an array of the object's children. Those which are not Walkable are ignored.

Overrides:

getChildren in class QueryPart