mondrian.olap
Class ParameterImpl

java.lang.Object
  mondrian.olap.ParameterImpl

All Implemented Interfaces:

ParameterCompilable, Parameter

public class ParameterImpl
extends Object
implements Parameter, ParameterCompilable

Implementation of Parameter.

Since:

Jul 22, 2006

Author:

jhyde

Nested Class Summary

Nested classes/interfaces inherited from interface mondrian.olap.Parameter

Parameter.Scope

Constructor Summary

ParameterImpl(String name, Exp defaultExp, String description, Type type)

Method Summary

Calc	compile(ExpCompiler compiler)
protected Object	convert(Object value)
static Object	convertBack(Object value)
boolean	equals(Object other) Returns whether this parameter is equal to another, based upon name, type and value
Object[]	getChildren()
Exp	getDefaultExp() Returns the expression which provides the default value for this Parameter.
String	getDescription() Returns the description of this Parameter.
String	getName() Returns the name of this Parameter.
Parameter.Scope	getScope() Returns the scope where this parameter is defined.
Type	getType() Returns the type of this Parameter.
Object	getValue() Returns the value of this parameter.
int	hashCode()
boolean	isModifiable() Returns whether the parameter can be modified.
boolean	isSet() Returns whether the value of this parameter has been set.
void	setDefaultExp(Exp defaultExp)
void	setDescription(String description)
void	setType(Type type)
void	setValue(Object value) Sets the value of this parameter.
void	unsetValue() Unsets the value of this parameter.

Methods inherited from class java.lang.Object

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

Constructor Detail

ParameterImpl

public ParameterImpl(String name,
                     Exp defaultExp,
                     String description,
                     Type type)

Method Detail

getScope

public Parameter.Scope getScope()

Description copied from interface: Parameter

Returns the scope where this parameter is defined.

Specified by:

getScope in interface Parameter

Returns:

Scope of the parameter

getType

public Type getType()

Description copied from interface: Parameter

Returns the type of this Parameter.

Specified by:

getType in interface Parameter

Returns:

Type of the parameter

getDefaultExp

public Exp getDefaultExp()

Description copied from interface: Parameter

Returns the expression which provides the default value for this Parameter. Never null.

Specified by:

getDefaultExp in interface Parameter

Returns:

Default value expression of the parameter

getName

public String getName()

Description copied from interface: Parameter

Returns the name of this Parameter.

Specified by:

getName in interface Parameter

Returns:

Name of the parameter

getValue

public Object getValue()

Description copied from interface: Parameter

Returns the value of this parameter.

If Parameter.setValue(Object) has not been called, returns the default value of this parameter.

The type of the value is (depending on the type of the parameter) a String, Number, or Member.

Specified by:

getValue in interface Parameter

Returns:

The value of this parameter

setValue

public void setValue(Object value)

Description copied from interface: Parameter

Sets the value of this parameter.

Specified by:

setValue in interface Parameter

Parameters:

value - Value of the parameter; must be a String, a Double, or a Member

isSet

public boolean isSet()

Description copied from interface: Parameter

Returns whether the value of this parameter has been set.

If the value has not been set, this parameter will return its default value.

Setting a parameter to null is not equivalent to unsetting it. To unset a parameter, call Parameter.unsetValue().

Specified by:

isSet in interface Parameter

Returns:

Whether this parameter has been assigned a value

unsetValue

public void unsetValue()

Description copied from interface: Parameter

Unsets the value of this parameter.

After calling this method, the parameter will revert to its default value, as if Parameter.setValue(Object) had not been called, and Parameter.isSet() will return false.

Specified by:

unsetValue in interface Parameter

getDescription

public String getDescription()

Description copied from interface: Parameter

Returns the description of this Parameter.

Specified by:

getDescription in interface Parameter

Returns:

Description of the parameter

getChildren

public Object[] getChildren()

equals

public boolean equals(Object other)

Returns whether this parameter is equal to another, based upon name, type and value

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isModifiable

public boolean isModifiable()

Returns whether the parameter can be modified.

Specified by:

isModifiable in interface Parameter

Returns:

Whether parameter is modifiable

setDescription

public void setDescription(String description)

setType

public void setType(Type type)

setDefaultExp

public void setDefaultExp(Exp defaultExp)

compile

public Calc compile(ExpCompiler compiler)

Specified by:

compile in interface ParameterCompilable

convert

protected Object convert(Object value)

convertBack

public static Object convertBack(Object value)