LValue

All Superinterfaces:

java.lang.Cloneable, java.io.Serializable

All Known Subinterfaces:

DataTable

All Known Implementing Classes:

AbstractLValue, ContextLookup, DefaultDataTable, FormulaFunction, PostfixTerm, PrefixTerm, StaticValue, Term
```
public interface LValue
extends java.io.Serializable, java.lang.Cloneable
```
A reference is an indirection to hide the details of where the actual value came from. The reference is responsible to report dependencies.

Author:

Thomas Morgner

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.Object`	`clone()`
`TypeValuePair`	`evaluate()`
`LValue[]`	`getChildValues()`	Returns any dependent lvalues (parameters and operands, mostly).
`ParsePosition`	`getParsePosition()`
`Type`	`getValueType()`	Querying the value type is only valid after the value has been evaluated.
`void`	`initialize(FormulaContext context)`
`boolean`	`isConstant()`	Checks whether the LValue is constant.

- Method Detail
  - initialize
```
void initialize(FormulaContext context)
         throws EvaluationException
```
    Throws:
    
    EvaluationException
  - evaluate
```
TypeValuePair evaluate()
                throws EvaluationException
```
    Throws:
    
    EvaluationException
  - clone
```
java.lang.Object clone()
                throws java.lang.CloneNotSupportedException
```
    Throws:
    
    java.lang.CloneNotSupportedException
  - getValueType
```
Type getValueType()
```
    Querying the value type is only valid *after* the value has been evaluated.
    
    Returns:
  - getChildValues
```
LValue[] getChildValues()
```
    Returns any dependent lvalues (parameters and operands, mostly).
    
    Returns:
  - isConstant
```
boolean isConstant()
```
    Checks whether the LValue is constant. Constant lvalues always return the same value.
    
    Returns:
  - getParsePosition
```
ParsePosition getParsePosition()
```