ParameterSlot (Pentaho Community Edition Project: mondrian 9.3.0.0-424 API)

```
public interface ParameterSlot
```
Implementation of a parameter.

Since:

Jul 25, 2006

Author:

jhyde

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`getCachedDefaultValue()`
`Calc`	`getDefaultValueCalc()`	Returns a compiled expression to compute the default value of the parameter.
`int`	`getIndex()`	Returns the unique index of the slot.
`Parameter`	`getParameter()`	Returns the parameter.
`Object`	`getParameterValue()`	Returns the value of this parameter.
`boolean`	`isParameterSet()`	Returns whether the parameter has been assigned a value.
`void`	`setCachedDefaultValue(Object value)`
`void`	`setParameterValue(Object value, boolean assigned)`	Sets the value of this parameter.
`void`	`unsetParameterValue()`	Unsets the parameter value.

- Method Detail
  - getIndex
```
int getIndex()
```
    Returns the unique index of the slot.
  - getDefaultValueCalc
```
Calc getDefaultValueCalc()
```
    Returns a compiled expression to compute the default value of the parameter.
  - getParameter
```
Parameter getParameter()
```
    Returns the parameter.
  - setParameterValue
```
void setParameterValue(Object value,
                       boolean assigned)
```
    Sets the value of this parameter.
    NOTE: This method will be removed when we store parameter values in the Result rather than in the Query.
    
    Parameters:
    
    value - New value
    
    assigned - Whether isParameterSet() should return true; supply value false if this is an internal assignment, to remember the default value
  - getParameterValue
```
Object getParameterValue()
```
    Returns the value of this parameter.
    NOTE: This method will be removed when we store parameter values in the Result rather than in the Query.
  - isParameterSet
```
boolean isParameterSet()
```
    Returns whether the parameter has been assigned a value. (That value may be null.)
    
    Returns:
    
    Whether parmaeter has been assigned a value.
  - setCachedDefaultValue
```
void setCachedDefaultValue(Object value)
```
  - getCachedDefaultValue
```
Object getCachedDefaultValue()
```
  - unsetParameterValue
```
void unsetParameterValue()
```
    Unsets the parameter value.